Genesis I.C.E. Genesis 5.2 User's Manual
Contents
1. Theater System s LFE sub woofer if you do not have one even if you are using different speakers for your home theatre system On the home theatre processor set the speakers to LARGE and sub woofer to YES even if you do not have a separate sub woofer Then take the sub woofer line level output from the processor and plug it into the LFE IN connector on the G5 2 If your processor does not have a balanced output you may elect to use a RCA to XLR pass through converter High quality ones may be obtainable from Balanced Audio Technology Cardas or your favourite supplier Reasonably good ones can also be obtained from Radio Shack If you are planning to use long runs more than 10 feet of interconnects to connect the line level LFE inputs of your G5 2 to your processor we suggest that you use a true single ended to balanced converter such as the Balance Buddy from Rane Corporation that you attach directly to the processor LFE output A long run of balanced interconnect can then be used For runs of interconnect less than 10 feet 3 metres a single ended interconnect can be used with a female RCA to XLR converter that is attached to the G5 2 LFE input LFE Gain The G5 2 has a knob that controls LFE GAIN separately from the BASS GAIN This allows you to have the G5 2 s plugged both into your audiophile stereo system as well as your home theatre system at the same time without conflicts The usual way to control t2. freguencies or you may overheat the amplifier Secondly you may make the mid bass produced by the top of the woofer out of proportion with the mid bass produced by the bottom of the mid bass coupler This would tend to sound boomy in the mid bass regions Another good rule of thumb is to first set the volume control of the woofer for proper midbass rather than low bass The theory is that if the midbass is correct then the low bass should be very close to correct If the midbass is proper and the low bass is still not right here are some other suggestions A good balance between proper low bass extension and a deep and spacious soundstage needs to be established to optimize your speaker s performance In order to achieve what the speaker is capable of we suggest you focus your efforts on a proper balance of soundstage elements that includes information beyond the left and right sides of the speakers front to back depth well behind the speaker excellent focus of instruments and voices with proper vertical information and mid bass fill A Genesis loudspeaker system correctly set up can and should provide a soundstage that is wall to wall and with pinpoint focus the speakers disappearing completely on a recording containing such information ver 1 0 13 Room Treatment No room is perfect To optimize your sonic presentation it may be helpful to treat your room Here are some guidelines 1 Front walls This loudspeaker is a dip
3. employs an accelerometer as a sensor to constantly monitor the movement of the woofer cone and instantaneously compares it to the input signal This comparison circuit identifies any deviation from the input and instantaneously applies a corrective signal to compensate thus practically eliminating the inherent distortion of the woofer As an example when you have a high impact low bass signal that starts and stops suddenly for example a tympani the inertia of the woofer cone makes it slow to start moving and then after it is moving the momentum of the cone makes it continue moving even after the signal has stopped The sonic result is overhang bloat lack of tautness and definition and a blurring of dynamic impact With the servo system the circuit senses that the woofer is not moving as fast as it should and it instantaneously applies much more current to make it move faster ver 1 0 17 When the signal stops it detects that the woofer will continue to move when it shouldn t and applies a counter signal to stop the woofer faster and more effectively than an open loop woofer could possibly respond Thus the servo drive reduces distortion and improves transient response by making the woofer seem massless Typical non servo woofer systems have distortion levels that exceed 10 at even moderate levels The Genesis servo bass system reduces this distortion to below one percent at almost any output level It also drives the woofer
4. to constant acceleration which makes its frequency response totally flat The servo system is a more proactive approach to controlling a loudspeaker than high damping factor and high current in the normal amplifier However this also means that the woofer the cables attaching the woofer to the amplifier and the power amplifier has to be designed as an integrated system Thus the Genesis 5 2 is designed with a built in 500W servo amplifier for the bass section Aluminium cone Woofers The transducer used in a servo system must be strong enough to withstand the high current approach of the servo and yet delicate and light enough to react extremely quickly The G5 2 features three 8 inch aluminium cone woofers per channel While the servo system is able to ensure that the driver works linearly as a perfect piston it is unable to correct for distortion caused by cone wobble bending and break up Hence the drivers were designed to minimize these non linear distortions allowing the servo system to most effectively eliminate the linear distortions The woofers are a uniquely designed metal cone driver made for the Genesis servo system Made of a cone of solid aluminium the suspension and voice coil have been maximized for long distortion free excursion so as to increase dynamic range Our aluminium cones are a magnitude stiffer than any plastic or paper cone on the market and virtually eliminate the problems caused by cone bending and
5. you are seated listening to the speakers six feet apart and firing straight ahead with no toe in You will want to sit ten to twelve feet away from the speakers Typical room placement Place speakers about 20 of the way into the room and 10 to 12 feet from the listeners 6 to 8 C aevi ver 1 0 4 Set up Guide Positioning A good starting position for the G5 2 is about 20 of the way into the room as measured from the front wall the wall you look at as you are seated listening to the speakers Start with the speakers six feet apart and not toed in You will want to sit 10 to 12 feet away from the speakers if you have the space We will experiment with moving the speakers around and toeing them in later Power Connections There are two connections you will BENESIS need to make to the G5 2 First the absolute fidelity jt motn power cord for the built in amplifier 3 ite will need to be plugged into a power EU kia LAN iS socket A 10 foot power cord is NI included with your speakers for this Mei 2 purpose We do not recommend E using an extension cord for the G5 2 due to the high power demands of the 500W amplifier However if you MUST use an extension cord use an extremely heavy duty one e 9 HIGH LEVEL INPUTS 6 E Before you plug the power cord in A please make sure that the voltage selector is set to the proper voltage Taiwan Japan and North America will require the 115v set
6. al or even a piece of furniture can help break up this point of first reflection 3 Rear wall In many cases it will be unnecessary to do anything with the wall behind your listening position However you may want to experiment with diffusers or absorbers behind you for best sound Absorption behind the listener is usually beneficial ver 1 0 14 Mastering the Refinements of the system Fine tuning an audio system is an art that will take time and patience lt can be one of the more rewarding learning experiences you will have in the pursuit of music and its enjoyment One of the best pieces of advice we can offer is that you take advantage of the ear s ability to identify similarities in sound This ability is useful in fine tuning your system because if every recording you listen to has a similarity of sound too much or too little of a certain frequency for instance then you can be fairly certain that you have yet to perfect your set up Keep at it and remember to enjoy your music as you work on perfecting your set up If you have any questions feel free to contact us at Genesis Our website is the first place that you can look to for more information but you are welcome to either send us an email or just give us a call ver 1 0 45 The Technology The Genesis Ribbon Tweeter Reviewers in the Audiophile press have often remarked that the Genesis circular ribbon tweeter is the world s best It is a one inch circular planar r
7. break up The lowest break up mode where there can be any chance of distortion at all is at 6 000Hz far above the 16Hz to 120Hz frequency range at which these drivers operate Therefore the ver 1 0 18 driver is a perfect piston within the frequencies used Thus low cone break up distortion is inherent in the driver designed for the G5 2 Unlike the mid bass couplers midrange and the tweeters which operate in dipole the three woofers in the G5 2 operate in phase as an omni pole All three woofers work in phase to control the air mass of the listening room This means that the surface area of the three cones and the loudspeaker enclosure all work in unison to produce bass output that descends evenly to below your hearing limits 500 watt Class D Servo Amplifier While the advantages of metal cones include extreme stiffness resulting in very low distortion and break up one problem is that of greater mass To over come this Genesis had to build an amplification system of great wattage and high damping factor The servo system also places extraordinary demands on the amplifier because the system uses enormous amounts of current to make the woofer follow the input signal Combined with the metal cones this means that the amplifier used must deliver extraordinarily large amounts of clean power In the Genesis 5 2 the built in amplifier was specifically designed and tuned for low frequencies in order to produce floorshakingly mu
8. cally however the sound should appear to be detached from the loudspeakers ver 1 0 9 A simple rule of thumb to follow is that focus will be achieved by placing the speakers closer together or farther apart and front to back depth can be adjusted by the distance from the rear wall Further as the system breaks in the depth and width of the soundspace will increase and so will the smoothness of the sound Tuning into the room There are no absolute rules concerning the speaker room coupling so do not be afraid to experiment with speaker placement for best results You should also experiment with asymmetric positioning in the room Do not have your speakers the same distance from the side walls try putting them closer to the left or the right wall If the speakers are equidistance from side and front wall you may find a suck out at 100Hz to 300Hz In some problematic rooms a resonance may develop at one or two frequencies that is unnatural to the music By moving the speakers closer to the front side wall or farther from the front side wall the resonance may be reduced at the listener s position Ultimately it is all about balance You have a number of controls at hand with which to adjust the bass response the low pass filter frequency and woofer volume You can also move the speakers closer together for better speaker to speaker coupling or further apart Home Theater and Multi Channel Music While the Genesi
9. g RS i E F i me a j Je a Owners Manual and Set up Guide Genesis 5 2 Loudspeaker Contents A QUICK START SET UP GUIDE 4 UNPACKING 4 ROOM PLACEMENT 4 SET UP GUIDE 5 POSITIONING 5 POWER CONNECTIONS 5 SOURCE INPUT CONNECTIONS 5 CONTROLS 7 TUNING THE SYSTEM 7 ADJUSTING BASS GAIN 8 Low PASS FILTER 8 IMAGING AND SOUNDSTAGE 8 TUNING INTO THE ROOM 10 HOME THEATER AND MULTI CHANNEL MUSIC 10 LFE INPUT 11 LFE GAIN 11 LFE OUTPUT 12 THE REFINEMENT STAGE 12 ROOM TREATMENT 14 MASTERING THE REFINEMENTS OF THE SYSTEM 15 THE TECHNOLOGY 16 THE GENESIS RIBBON TWEETER 16 TITANIUM MIDRANGE 16 ver 1 0 1 ver 1 0 MID BASS COUPLERS THE SERVO BASS ADVANTAGE ALUMINIUM CONE WOOFERS 500 WATT CLASS D SERVO AMPLIFIER SPECIFICATIONS A Message from Genesis Congratulations You are now the owner of one of the finest loudspeaker systems in the world Based on the technologies developed for our flagship Genesis 1 1 the G5 2 is a smallish 4 ft tall floor standing loudspeaker and yet it delivers some of the imaging and soundspace of our largest 7 foot tall products The G5 2 loudspeaker system was created for the music lover living in the metro environment It is designed to reproduce music and film at live listening levels with virtually no restrictions on dynamic range frequency response or imaging capabilities This is what we mean by absolute fidelity the ability to reproduce the musical event faithfully as wa
10. g with each adjustment then make the next change A common problem we find with many set ups is a tendency to separate the speakers too far from each other This gives an unnaturally wide soundstage between the two speakers and creates problems beyond the unnatural width of the center stage The key problem is a lack of soundstage information beyond the left and right sides of the speakers and also a loss of focus between the speakers If you find that the sound is not spacious enough or you are not getting enough front to back depth pull the speaker away from the front wall This is typically preferable to separating the two speakers ver 1 0 42 too far and will almost always give you better depth and soundstage information A word of caution however if you move the speakers too far from the front wall you may lose focus Yet another problem is a lack of mid bass energy In order for the appropriate amount of mid bass energy to be present the speakers should be close enough together to achieve proper coupling of the midrange driver and the mid bass couplers Coupling is desirable in the lower frequencies from the mid bass on down This simply means that the left and right drivers work together as opposed to working separately If you find there isn t enough deep bass your first remedy is the volume control on the woofer amplifier This has several limitations First turned up too high you may get some distortion on very low
11. he level of the LFE output is to set the LFE gain to 6 the twelve o clock ver 1 0 11 position and then use the home theatre processors level control to dial in the level However having the LFE gain control allows you to tune the LFE if your two systems have completely different gain structure LFE Output Along with the LFE input the G5 2 has a unique capability of LFE output This is a true powered balanced output and hence can convert a single ended input signal into a true balanced output This buffered output can be used to daisy chain the LFE signal to other LFE inputs including other G5 2 speakers and separate subwoofers Thus it is possible to channel the LFE signal from your home theatre processor to one speaker and then from that speaker to another and to another and to another Distributing the bass is also helpful for reproduction of multi channel music because you get incredible articulation and detail in the bass all around the room The Refinement stage After following the rough setup guide above you may not be completely satisfied with the results We share with you here some of our observations in setting up these loudspeakers One rule of thumb you should always keep in mind Make one change at a time Do not for instance change position of the speakers and make an adjustment to the tweeter midrange and bass all at once Make each of these changes separately and note the difference by listenin
12. ibbon design crafted from an extremely thin membrane of Kapton with a photo etched aluminium voice coil that is a mere 0 0005 inch thick The entire radiating structure has less mass than the air in front of it That is why it will reproduce accurately frequencies beyond 36k Hz The result of this design is a driver that has a rapid and uniform response to high frequencies and has the speed of the best ribbon electrostatic designs without the high distortion and poor dispersion that is typically associated with them The G5 2 use two of these tweeters per channel One front firing and the other wired to the crossover out of phase to the front tweeter and firing to the rear creating a dipole Dipoles radiate the same sound from both front and rear out of phase in push pull fashion Thus the sound waves from the front and back of the speakers cancel out as they radiate from the sides of the speakers which means that there is minimum radiation of sound to the sidewalls of the room The net result is that the G5 2 generate far fewer detail robbing room reflections from the sidewalls than other types of loudspeakers With fewer spurious reflections to confuse your hearing the program source emerges more clearly Imaging is deeper yet more focused Titanium Midrange We sometimes say that the midrange is a window into the mind of a composer or a singer And indeed the midrange is where the magic is in a well recorded musical eve
13. invert the high level inputs when you connect the bass section of the G5 2 directly to the preamp If you do this use a good quality balanced interconnect cable to connect the balanced output of your preamplifier to the Preamp level input XLR connector on the back plate of the G5 2 Using this connection switch the Bass Input Selector to the down position This will bypass the high level input from the servo amp and take the bass input for the built in servo bass amplifier directly from the preamp If your preamplifier does not have a balanced output you may elect to use a single ended to balanced pass through converter High quality ones may be obtainable from Balanced Audio Technology Cardas or your favourite supplier Reasonably good ones can also be obtained from Radio Shack If you are planning to use long runs over 10 feet of interconnects to connect the line level inputs of your G5 2 to your preamplifier and your preamplifier does not have balanced outputs we recommend that you use an active or passive signal balancing device such as from Rane Corporation to convert the single ended output from your preamplifier to a truly balanced signal Such a signal will give you the benefit of maximum noise rejection and maximum signal fidelity over longer runs ver 1 0 6 Controls The knob on the upper middle marked Bass Gain controls the volume of the built in bass servo amplifier Begin with this control at posi
14. nt The G5 2 uses a Genesis designed proprietary 4 5inch titanium coned midrange to cover this critical frequency spectrum Machined out of one of the lightest and stiffest materials known this low mass cone driver is one of the best midrange transducers ever made with nearly instantaneous transient response enabling the G5 2 to sound lifelike and effortless ver 1 0 16 The driver is housed in an enclosure that is open to the back Thus the midrange operates as a dipole too Mid Bass Couplers In order to create a sound bridge between the midrange and the bass section the G5 2 incorporates two 6 5inch metal cone mid bass couplers One front and one rear firing again working as a dipole Made of aluminum this metal cone is extremely light and stiff The driver is hence capable of handling the huge dynamic range demands of the system while maintaining extremely low coloration and excellent transient response The Servo bass Advantage Very few loudspeakers use servo drive either because most designers think that it is too difficult to design too expensive or because of the extraordinary demands a servo system makes on the amplifier and the transducer However the Chief Scientist of Genesis Arnie Nudell first introduced the servo system in the legendary Infinity Servo Statik One in 1968 so we know how to design and build servo systems The concept of the Genesis servo bass system is an easy one to understand lt
15. ol up turning the knob clockwise and the image of the voice will move upward slightly If you have the speakers 20 of the way into the room and you are not getting enough front to back depth the singer not appearing behind the speaker enough pull the speakers away from the front wall a little bit at a time If you do not have them pulled far enough away you may not have enough front to back depth However slightly more than 1 3 of the way into the room is about as far as you want to go Pulling them half way into the middle of the room is unlikely to help and probably incur the wrath of your spouse Find the best compromise for your room your tastes and your space requirements If you are not getting proper focus on the voice you may angle the left and right speaker up to about 15 to 20 degrees toe in towards your listening position until you have a properly defined center image If the speakers are too far apart you will lose the side image and if they are too close together you will have too small a center stage When properly set up very little sound should appear to come directly from the speaker instead the sound stage should extend far beyond the left and right edge of the loudspeakers and they should have tremendous front to back depth When the recording is close miked when the instrument or performer is very close to the recording microphone the music may appear to come directly from the loudspeaker This is normal Typi
16. ole and therefore there is sound coming from both the front and the back of the speaker How the front wall is treated or not treated is important Generally speaking the Genesis loudspeakers prefer a live front wall to a dead front wall By these terms we mean the amount of reflection of sound A typical wall of glass or brick cement or drywall material is a reflective surface A heavily curtained or sound proofed wall would be considered a dead wall or a non reflective wall A normal thin curtain across a window causes only a small amount of absorption 2 Sidewalls Because the speaker is a dipole it is less sensitive to the sidewalls However as a rule of thumb it is a good idea to keep the speaker as far away from the sidewalls as is practical With this in mind it may be helpful to add some damping material or diffuser panels to the point of first reflection This is a point on the sidewalls between the listener and the loudspeaker It is where the sound from the loudspeaker first hits the sidewall then bounces to the listener This reflection is undesirable because it is slightly delayed from the original sound This point on the sidewall can be easily determined with the help of a second person and a mirror Sitting in your listening position have an assistant hold a mirror up on the sidewall Move the mirror until you can see the tweeter This is the point of first reflection A diffuser see your dealer an absorptive materi
17. r in one direction At this point if there is not enough mid bass turn the low pass number to a higher position or alternately position the main speakers closer together in order to achieve better mid bass coupling between the main speakers If it sounds too fat turn the low pass control down or adjust the volume Small rooms have more bass gain hence the smaller the room the higher the low pass frequency to use and the lower the bass gain level Imaging and Soundstage If your vocal selection is a well recorded audiophile CD or LP the performer should appear to come from behind the loudspeakers and ver 1 0 8 be at the appropriate height for a standing person If it is not there are several remedies that will address this If the vocal appears to be larger than life you should first check the system volume Is it a volume that would be appropriate for someone actually singing in your room If there is too much volume the artist will appear too big and the opposite is true for too little volume If the volume is set correctly and the image is still too big place them closer together and re listen Place the speakers no less than 5 feet apart If the image is still too big toe the speakers in a slight amount Conversely if the image is too small move the speakers apart The speakers should be no more than eight feet apart Repeat this process till you have it right If the voice is too low in height turn the midrange contr
18. s 5 2 was designed with the audiophile in mind its performance and features make it ideal for Home Theater as well The G5 2 is truly a full frequency loudspeaker that satisfies the requirement for Dolby Digital and DTS cinema reproduction However the combination of the low frequency capability and a unique set of controls and connections on the G5 2 provide Home Theater users benefits beyond other loudspeakers on the market In essence the G5 2 has a servo controlled subwoofer already included in each speaker This capability allows the G5 2 to provide the ability to reproduce the low frequency effects LFE signal available on all modern movie decoders An additional benefit of using this feature is that the LFE will come from two or more locations in your room versus using a single subwoofer for LFE Utilizing this capability dramatically reduces room bass mode and ver 1 0 10 bass node problems This results in smoother bass integration in the room and a huge system impact capability LFE Input The Low Frequency Effects LFE input allows the G5 2 to be used in addition to or in place of a separate sub woofer The LFE input blends the low frequency effects signal from the home theatre processor into the woofer section of the speakers The LFE input bypasses the internal crossover and hence uses the home theatre processor s crossover Since the G5 2 is able to play down to 20Hz the bass section can also be used as your Home
19. s intended by the performer or the film maker Standing 44 inches tall and only 11 inches wide the Genesis 5 2 is a diminutive giant By means of an active servo bass response down to 20Hz is achieved and the full range and impact of a symphony orchestra or a rock band can be reproduced Please read this Owners Manual and Set up Guide to get the maximum enjoyment out of your purchase Also if you have access to the internet please check back at our website often The address is www genesisloudspeakers com We will put the latest updates tips and tricks and support for our owners on our website Please write the serial number and purchase details of your Genesis 5 2 here for future reference Bought at ver 1 0 3 A Quick Start Set up Guide Now that you have your new Genesis 5 2 loudspeaker system we realize that you can t wait to hook it up and start playing However please read this quick set up guide even if your dealer is setting it up for you before you proceed Unpacking Your loudspeakers will come to you in two large shipping cartons The G5 2s weigh over 140lbs 63 5kgs each so we suggest a minimum of two strong people to move the speakers around We will notbe held liable for damage to either the speakers or your backs during unpacking and setting up Room Placement A good starting position for your G5 2 is about 20 the way into the room as measured from the front wall the wall you look at as
20. sical bass to power the servo woofers One side benefit of this powered woofer system is that almost any sized amplifier can be used to drive the Genesis 5 2 No longer must one choose between having an amplifier with enough power to drive the woofers and a smaller amplifier having better spatial and tonal characters Nevertheless we generally recommend 60 watts as a minimum ver 1 0 19 Specifications Dimensions Weight Frequency Response Controls Inputs Outputs Nominal Impedance Sensitivity Power Rating Finish ver 1 0 H44 xW 11 x D 22 140 lbs 63kg per side 20Hz to 36kHz 3dB Low pass gain Rear Tweeter 1 dB Midrange 1 5 dB Speaker Level Line Level Balanced LFE Line Level Balanced LFE Buffered Daisy Chain Balanced 4 ohms speakers 90 dB 1 watt 1 meter 500 watts each Rosewood Bird s Eye Maple High Gloss Black High Gloss Silver 20
21. t as it should remain set at approximately 90 Hz This control will be addressed later Turn the gain control of the woofer amplifier up or down until the voice sounds correct Whatever controls you use turn them up and down only a little at a time It is easy to turn it up or down too much Concentrate on the mid bass regions as opposed to the very low bass in your recording to achieve a natural blend The voice and the music accompaniment should sound as if it were cut from one cloth not separate If the voice sounds thin or does not have enough chest to its sound turn the woofers amplifier s gain up till it does If you find that turning the volume up creates too much low bass you will then need to work on the low pass filter Low Pass filter This control will lower the frequency cutoff point of the woofer Turning the low pass filter up to a higher number will extend the upper bass regions without affecting the low bass level Some rooms may require you to set the low pass filter up to 130Hz Do not be afraid to increase this control to give the sound more body Next set the woofers using more than just a voice Select some music that you know to have good deep bass Set the gain on the woofers for a natural and powerful bass sound Use a symphonic piece of music if you can or use a natural bass instrument for your guide Try to make it sound real You may have to return to the vocal to make sure you have not gone too fa
22. ting Most European countries and other Asian countries will require 230v We recommend that you plug the G5 2 into an unswitched outlet or a switched outlet that will always be left ON HIGH LEVEL DISCONNECTED FROM SERVO AMPLIFIER There is an on off switch for the power amplifier This switch should always be left on The built in amplifier has an auto sensing circuit that will automatically put the amplifier on stand by when there is no music being played for around 10 minutes It will immediately switch the amplifier on if there is music sensed Source Input Connections Connect the output of your power amplifier to the High Level Input binding posts using a high quality loudspeaker cable Make sure that ver 1 0 5 you have the correct polarity connected for both speakers the plus or positive red terminal on the G5 2 should be connected to the plus positive or red terminal on your power amplifier The Bass Input selector switch should be in the up position pointing to the inputs being used This is the recommended hook up both sonically and for convenience Nevertheless you may wish to connect the bass section of the G5 2 directly to your preamplifier instead You may wish to do this if you know that your power amplifier may be deficient in the bass or does not have a response flat down to 20Hz Also check for the phase correctness of your power amplifier If your power amplifier inverts phase you will need to
23. tion 7 The knob on the upper right marked Low Pass controls how high the woofer will play At the extreme low of 71Hz the woofer will play up to 71Hz and then begin rolling off or reducing its volume above this frequency The recommended beginning position for this control is 90Hz The lower left knob marked Tweeter is a volume control for the front tweeter Turning this control clockwise will increase the level of the front tweeter Use this control if you need a bit more treble or to increase the apparent space of the soundstage Start with this control at the two o clock position There is about a one dB range for this control The lower right knob marked Midrange is used to adjust the level of the midrange Start at the 12 o clock position Turning the control anti clockwise or counter clockwise will make the midrange sound leaner and turning it clockwise will make the midrange sound fulller There is about a one and a half dB range for this control Tuning the system Music is the best way to begin your setup procedure We suggest that video sources be used only after you have setup the system to properly reproduce music We suggest that you start with a single vocal with instrumental accompaniment because the sound of the human voice is more easily recognizable than many instruments and is the least complex sound to deal with ver 1 0 7 Adjusting Bass Gain Leave the low pass filter alone for the momen
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