Soundstream Technologies Class A 10.0 Stereo Amplifier User Manual
Contents
1. controls adjusted fully counter clockwise no FIG 1 LSE Q boost is applied and the amplifier is flat in response down to 30 Hz Hz BOOST FREQ The frequency control Hz adjusts the starting point of the subsonic filter This high pass filter can be 10 adjusted from 30 Hz up to a 7Q 28 a maximum of 60 Hz This control is useful for setting the lowest frequency that your subwoofer will 5t see See figure 1 t oT 0 707 The Q control adjusts the a su 5 J zoo amount of boost applied at the set FIG 2 Variable Q frequency This is adjustable from 707 flat to 2 8 9 dB 1 See figure 2 5E a When the Q is set to 707 s Butterworth LSE Q acts as a sub sonic filter only See figure bs 3 A The simple act of removing the 10 Frequency Ha 80 100 200 signal below the vented tuning FIG 3 Variable High Pass frequency can improve system output by as much as 3 dB With Q values greater than 707 boost is added to the sub sonic filter see s figure 4 si Application E Woofers in vented enclosures have 3 good power handling characteristics 20F 4 c 1i above the tuning frequency but below the tuning frequency power 10 Frequency Hz 50 100 200 FIG 4 Variable Q handling drops off considerably 162. most amplifiers in the Class A 5 0 and over twelve times in the Class A 10 0 More drive current maintains the amplifiers performance into low impedance loads e Drive Delay Muted Turn on off Circuit A unique circuit which completely eliminates any amplifier related turn on off noises Flexible Dual Input Level Sensitivity accepts 2 voltage ranges from 200 mV to 2 0 V and from 500 mV to 5 0 V permitting maximum output from the amplifier with virtually any source unit Differential Balanced Input Design for added immunity to noise caused by component and vehicle electrical system interaction when using Unbalanced RCA inputs e True Balanced Input for professional quality performance and noise cancellation The 6 pin din plug carries and Signal information for Left and Right channels audio ground and 15 Vdc to operate the Soundstream BLT Balanced Line Transmitter AIRBASS ACCESSORY OPTION Soundstream s new A JRBASS feature can be added to the REFERENCE Class A amplifiers This feature allows wireless RF remote control level adjustment of the amplifier NOTE The AIRBASS accessory is intended to be used only while the REFERENCE Class A amplifiers are driving subwoofers When the AIRBASS accessory is added to a REFERENCE Class A amplifier it automatically configures the amplifier into Bridged Mono mode The Coherent Stereo Mixed Mono Bridged Mono switch is bypassed Therefore when using AIRB
3. Independent Left and Right channel input level controls Balanced Signal Input Connector 6 pin Balanced signal input connector for use with the Soundstream BLT Balanced Line Transmitter Inputs Right and left channel RCA Unbalanced inputs only right channel input is used in Mono mode Coherent Stereo Bridge Mixed Mono switch Select Bridge for bridged mono operation use right channel input Select Stereo for coherent stereo operation Select Mixed Mono for simultaneous stereo bridged mono operation Me SEEN OOOO Q OoOo Ly TOP VIEW PARTIAL 1571 P LEVEL 02v 137 1271 117 97 7 LSE Q 5 16 7 BALANCED um 5v 05V 0900 07 28 3060 a R OOOO L 12v GND REMOTE MAXI FUSE Handcrafted In the U S A LEFT RIGHT Hz BOOST FREQ FRONT VIEW O gt Q 17 FB e a E O BOTTOM VIEW PARTIAL Continued from page 12 of blown power supply fuse the Fault indicator on the top panel will light The fuse is accessible from the front panel of the amplifier See the chart below to determine the fuse value Never replace the fuses with a higher value than what is supplied This may result in amplifier damage and will REFERENCE Class A Amplifier Fuse Values Amplifier Ampl
4. NOV subwoofer enclosure with LSE Q s Hz control i follows s T Seems BOOST FREQ 1 Adjust frequency and boost control to full CCW position See figure 6 2 While listening to music with strong bass content at a moderate level slowly adjust frequency control clockwise Listen for a reduction of bass response Now rotate FIG 6 LSE Q Setting 105 z frequency control slightly il backwards This serves the purpose s of removing the subsonic bass ET energy i Soundstream s LSE Q contains the sf same type of circuit with the added 30 0 benefit of infinite adjustability Our Q and Hz control can provide virtually any combination of boost 16 Frequency Hz 50 100 20 FIG 7 Various Settings NOTE The LSE Q circuit on the Class A 10 0 can be defeated for flat operation down to 20 Hz by placing the LSE Q switch in the OUT position You may wish to use this option to achieve a higher S N Ratio when using ultra high efficiency speakers such as compression LSE Q THEORY AND USE Class A 10 0 LEQ LSE Q is a unique subwoofer control circuit i included with the SOUNDSTREAM 0 7 2 8 3060 REFERENCE Class A 10 0 amplifier It is s capable of removing subsonic energy in program C material The circuit consists of two controls m One adjusts the frequency of operation and the other adjusts the range of boost With both
5. spec glass epoxy circuit boards and high current custom gold plated solid brass connections that will accept up to 4 gauge power ground wire Quad Factor Circuitry Soundstream s newest power supply design allows the Class A amplifiers to make four times the power when going from a 4 ohm stereo load to a 2 ohm stereo load and again when going from a 2 ohm stereo to a 1 2 ohm stereo load Coherent Stereo Mixed Mono selection for either pure stereo operation or mixed mono for simultaneous stereo and mono Chassisink Darlington Power Array Soundstream s overbuilding of the output section incorporates multiple output transistors instead of a few for faster stronger power delivery The transistors are sandwiched between the circuit board and the heatsink in a design called Chassisink to ensure cool efficient amplifier operation PowerGrid Power Supply Design All power supply components are located near one another connected by thick wide PCB traces which ensures rapid high current delivery The entire power supply is isolated on one side of the circuit board while the audio stage is located opposite it guaranteeing minimal noise Ultra Low ESR Capacitance Bank Multiple small input power capacitors are used to provide a lower ESR Equivalent Series Resistance which means more power in and out faster Smart Thermal Rollback Most amplifiers shut off when they get too hot In the unlikely event the REFERENCE Class A a
6. ASS follow the Bridged Mono input and output wiring Installing A JRBASS involves removing the bottom plate of the amplifier adding the A HBASS circuit board and flipping a switch The switch is labeled on the amplifier s main circuit board DO NOT set the A RBASS switch to the IN position unless the AIRBASS module has been added DO NOT move the A RBASS switch while the amplifier is ON Doing so may damage your speakers Please refer to the A RBASS owner s installation manual for more details 5 o o o o O Ro dul fae a4 P eq o 9 o EAD Q 1 o iT TOP VIEW PARTIAL Class A 5 OO Ww BALANCED i aly LEVEL 2v Q2V 5V O 5V 2 LEFT j 107 amp 2 97 9 4 8 8 F N Handcrafted aN USA MAXI FUSE RIGHT FRONT VIEW 6 ii e 0 a MIXED MONO An BRIDGE C an BOTTOM VIEW PARTIAL INSTALLATION STEP 5 e LEVEL SETTING The input levels are adjusted by means of the individual channel input level controls located on the front of the amplifier This is a unique dual stage circuit that adjusts both level and gain This topology maintains better Signal to Noise ratios even when using sources with minimal output In the ideal situation all components in the audio system reach maximum undistorted output at the same time The r
7. Determine up to 10 up to 20 Class A 5 0 Soundstream Power40 or Soundstream Power40 only Power80 4 ga Class A 10 0 Soundstream Power40 only Soundstream Power40 only 4 ga 4 ga Read this or sparks will fly The Soundstream REFERENCE Class A amplifiers have extensive internal power supply capacitance called the Ultra Low ESR Capacitance Bank Multiple small input power capacitors act as an internal stiffening capacitor Because of the large amount of internal capacitance there may be a sizable spark when connecting the power and ground lead to the amplifier for the first time In order to charge the capacitor bank without a spark we suggest you do the following 1 Connect the 12 volt cable to the amplifier and to the battery 2 Connect one end of the ground cable to the chassis of the vehicle 3 We have supplied a 150 ohm 2 watt resistor with the amplifier One leg of the resistor has been connected to the ground terminal of the amplifier 4 To charge the capacitor bank touch the loose end of the ground cable to the open leg of the resistor for at least 45 seconds CIRCUIT BREAKERS FUSES EXTERNAL Like all audio components the REFERENCE Class A amplifiers must be fused near the battery A fuse or circuit breaker must be located within 18 of the battery This will prevent a fire in the event of a shorted cable See the chart below to determine the correct fuse value INTERNAL The REFERENCE Class A
8. SERIES AND PARALLEL WIRING Amplifier Amplifier 4 Ohm 4 Ohm 4 Ohm 2 4 ohm drivers in parallel ao k 2 ohms 4 Ohm Amplifier F 4 Ohm 4 Ohm 4 4 ohm drivers in parallel z1 ohm ENT 4 Ohm 4 Ohm 2 4 ohm drivers in series 8 ohms SOUNDSTREAM TECHNOLOGIES 120 Blue Ravine Road Folsom California 95630 USA ph 916 351 1288 fax 916 351 0414 rev B 4 17 96 REFERENCE Class A 5 0 amp 10 0 Power Amplifiers OWNERS MANUAL AND INSTALLATION GUIDE a RAITER CONGRATULATIONS You now own the REFERENCE Class A Amplifier the product of an uncompromising design and engineering philosophy Your Soundstream REFERENCE Class A amplifier will outperform any other amplifier in the world To maximize the performance of your system we recommend that you thoroughly acquaint yourself with its capabilities and features Please retain this manual and your sales and installation receipts for future reference Soundstream amplifiers are the result of American craftsmanship and the highest quality control standards and when properly installed will p
9. amplifiers are fused with Maxi fuses In the event Continued on page 13 12 Teu ot Key to Callouts Fault LED Indicates a blown fuse Power LED Indicates amplifier power on LSE Q Bypass Switch Turns the LSE Q on IN or off OUT Input Overload Indicators Indicates the signal input level or input gain level is too high Input Level Selector Switch Selectable input sensitivity range from 0 2 2 Volts RMS or from 0 5 5 Volts RMS Left Channel Balanced Unbalanced Input Selector Switch Select Balanced to use the 6 pin Balanced signal Input Select Unbalanced to use the RCA signal inputs Right Channel Balanced Unbalanced Input Selector Switch Select Balanced to use the 6 pin Balanced signal Input Select Unbalanced to use the RCA signal inputs Main Fuse Main power supply fuse Replace only with the same value fuse 12V Connected to a fuse or circuit breaker then to the battery s positive post GND Main ground connection Bolt to a clean chassis ground in the vehicle REM Remote turn on input from the head unit Accepts 12V Speaker Output Connections Left and right channels LSE Q Frequency and Q adjustments Input Level Independent Left and Right channel input level controls Balanced Signal Input Connector 6 pin Balanced signal input connector for use with the Soundstream BLT Balanced Line Transmitter Inputs Right and left channel RCA Unbalanced i
10. cient circuitry and a unique Chassisink design to maintain lower operating temperatures Additional cooling may be required if the amplifier is located in a tightly confined area or when driving especially low impedance loads at extremely high levels When mounting the amplifier it should be securely mounted to either a panel in the vehicle or an amp board or rack that is securely mounted to the vehicle The mounting location should be either in the passenger compartment or in the trunk of the vehicle away from moisture stray or moving objects and major electrical components To provide adequate ventilation mount the amplifier so that there are at least two inches of freely circulating air above and to the sides of it 2 SWITCHES Set the Coherent Stereo Mixed Mono Bridged Mono and Amplifier crossover switches on the bottom of the amplifier to the appropriate positions before bolting down the amplifier see pages 13 16 Be sure to replace the hole plugs 3 MOUNTING THE AMPLIFIER a Using the amplifier as a template mark the mounting surface b Remove the amplifier and drill the holes c Mount the amplifier to the surface using the provided hardware 4 WIRING a Run and connect the audio signal and remote turn on cables to the amplifier from the source unit b Carefully run the positive cable from the amplifier to a fuse or circuit breaker within 18 of the battery c Connect the fuse or circuit breaker to the battery Leav
11. e the circuit breaker off or the fuse out until everything is bolted down NOTE There may be a sizable spark when connecting the power and ground lead to the amplifier for the first time Please see the comment on the previous d Secure the ground cable to a solid chassis ground on the vehicle It may be necessary to sand paint down to raw metal for a good connection e Double check each and every connection 14 Qa NIAE Key to Callouts Fault LED Indicates a blown fuse Power LED Indicates amplifier power on Input Overload Indicators Indicates the signal input level or input gain level is too high Input Level Selector Switch Selectable input sensitivity range from 0 2 2 Volts RMS or from 0 5 5 Volts RMS Left Channel Balanced Unbalanced Input Selector Switch Select Balanced to use the 6 pin Balanced signal Input Select Unbalanced to use the RCA signal inputs Right Channel Balanced Unbalanced Input Selector Switch Select Balanced to use the 6 pin Balanced signal Input Select Unbalanced to use the RCA signal inputs Main Fuse Main power supply fuse Replace only with the same value fuse 12V Connected to a fuse or circuit breaker then to the battery s positive post GND Main ground connection Bolt to a clean chassis ground in the vehicle REM Remote turn on input from the head unit Accepts 12V Speaker Output Connections Left and right channels Input Level
12. eason is because an amplifier will only make what comes into it bigger So if you send it a distorted signal from the head unit the amplifier is going to amplify distorted information The same thing holds true if an outboard processor or crossover begins to distort before you have maximum output from the amplifier By setting all components to reach clipping at the same time you can maximize the output of your system For the REFERENCE Class A amplifiers follow the following steps for the quickest easiest means of setting the levels 1 Turn the amp s input levels to minimum position fully counter clockwise 2 Begin with the input level switch in the 0 5 5 0 Volt position 3 Set source unit volume to approximately 3 4 of full volume 4 While playing dynamic source material slowly increase the amplifier s input level until a near maximum undistorted level is heard in the system If your preamplifier source unit has an extremely high output level be sure to pay attention to the clipping indicators located on the top of the amplifier These indicators will notify you if you are clipping the PREAMPLIFIER stage of the amplifier If the amplifier s output is distorted and the clipping lights are not blinking you are most likely clipping the OUTPUTS of the amplifier or driving the speaker to distortion INSTALLATION STEP 4 INSTALLATION AND MOUNTING 1 AMPLIFIER LOCATION The REFERENCE Class A amplifiers employ highly effi
13. ier is protected against both overheating and short circuits by means of the following circuits Main power supply fuses e Smart Power Supply Thermal Rollback activating at 85 C A fail safe thermal protection circuit activating at 95 C Your amplifier also incorporates an innovative Fault Diagnosis system that damage your amplifier NOTE f you experience blown main power supply fuses DO NOT increase values beyond the original fuse value Doing so will void your warranty and may If you blow fuses with the REFERENCE Class A amplifiers it is likely that the amplifier is seeing a dead short either in the speaker TROUBLESHOOTING PROBLEM No sound and power LED is not lit No sound a power LED is lit and the A RBASS option has not been added Fault LED is lit Repeatedly blown amp fuse frequent activation of Smart Power Supply Circuit Not enough input sensitivity while using Balanced input Left and Right Input Over load indicators lighting Alternator whine while using Unbalanced RCA inputs CAUSE No power or ground at amp No remote turn on signal Blown fuse near battery No signal input e The A RBASS switch is in the IN posi tion Move it to the OUT position e Amp power supply fuse is blown or miss ing Speaker or leads may be shorted Verify adequate amplifier ventilation e Be sure both Left and Right Input Signal Switches are set to the BAL position e I
14. ifier Fuse Battery Fuse Circuit Breaker Class A 5 0 40 amp Maxi Fuse 60 amp Class A 10 0 80 amp Maxi Fuse 100 amp REMOTE TURN ON Connect the Remote to the turn on lead from the source unit When 12 volts is received the amplifier will turn on SIGNAL CABLE Use a high quality cable that will be easy to install and has minimal signal loss to guarantee optimum performance Soundstream s DL1 and SL1 are ideal when using the Unbalanced RCA inputs While using the Balanced DIN input use the cable supplied with the BLT SPEAKER CABLE The REFERENCE Class A amps will accept up to 8 gauge speaker cable Use a high quality flexible multi strand cable for best performance and longevity Soundstream Speaker120 amp 160 12 and 16 gauge are ideal WIRING DIAGRAM LEVEL L INPUT landcrafted hh ihe U S A 2050 ENDL ANGE R 2v 02V BALANCED us OSV jm MAXI FUSE O QQQ Q o o e e H RIGHT To Remote Tum On Fuse I zl atthe To Chassis Battery Ground _ baa Terminal Head Unit D E J INSTALLATION STEP 3 WIRING POWER AND GROUND To ensure maximum output from your REFERENCE Class A amplifier use high quality low loss power and ground cables The REFERENCE Class A amplifiers will accept up to 4 gauge power and ground cables
15. mplifier reaches 85 C it will gradually roll back its average power without affecting the dynamics Once the amplifier has cooled off it returns to full power output If overheating should continue a second thermal sensing protection circuit will shut off the amplifier if the heatsink reaches 95 C e Fault Monitor LED on the top panel notifies you of blown power supply fuses 1 4 ohm Drive Ability The REFERENCE Class A amplifiers are designed to drive virtually any load all the way down to 1 4 ohm stereo 1 2 ohm mono Dual Discrete Class A Drive Stages Over six times the drive current of 4 LSE Q THEORY AND USE continued 8 0 This is due to the loss of any appreciable resistive air mass At ool frequencies below resonance the x woofer starts to behave as if it were mounted in free air If we wish to gt improve the performance of a vented system we should remove fee a m a these unwanted signals from our FIG 5 Limited Excursion system These can be removed by adding a subsonic filter Figure 5 shows the effectiveness of LSE Q on woofer excursion Woofer travel is 7 5 mm at 10 Hz with LSE Q properly adjusted this excursion can be reduced to less than 1 mm This is of great benefit to lowering woofer distortion and LSE Q increasing output 7 283060 Adjustment P n An easy method of optimizing your existing C
16. nput signal level is too high readjust in put gains or select the 0 5 5V input signal level range Make sure the Right Input Signal Switch is in the UNBAL position e Try the Left Input Signal Switch in the BAL and UNBAL position leave the switch in the quietest position This will not effect the performance of the amplifier TABLE OF CONTENTS Design FEALUPOS esiste et err ree egt ie re rodean oet d kp 4 5 AIRBASS ee ssa cal esata ashe ade cae edu uel ral os coi itae pta uiua 5 Reference Class A 5 0 Diagram ssssssess 6 7 Reference Class A 10 0 Diagram sssssess 8 9 Selecting Input Modes eeesseeeeeee 10 Balanced Unbalanced Input ssesssssss 11 Wiring amp Wiring Diagram seeeeeeeee 12 13 Installation and Mounting sseeeeenee 14 BTE 15 LSE Q Theory and Use sesesseeeeesee 16 17 Protection Circuitry amp Troubleshooting 18 SDOTVICS sities 19 M jerzrenerziilo E 19 3 DESIGN FEATURES Pure Class A Output Topology for the utmost in musicality and definitive power output Soundstream s unique design allows the Class A amplifiers to deliver incomparable sonics or when operated at lower impedances to provide phenomenal amounts of power Uncompromising Design and Construction including mil
17. nputs only right channel input is used in Mono mode Coherent Stereo Bridge Mixed Mono switch Select Bridge for bridged mono operation use right channel input Select Stereo for coherent stereo operation Select Mixed Mono for simultaneous stereo bridged mono operation INSTALLATION STEP 1 COHERENT STEREO MIXED MONO BRIDGED MONO The REFERENCE Class A amplifiers have the ability to operate in any one of the following modes Coherent Stereo with identical left and right stereo channels for maximum fidelity Best choice for satellite speakers Use this mode unless Mixed Mono is necessary Mixed Mono in order to drive stereo and mono simultaneously works well for center channels It can be used anytime you need a summed mono channel Somewhat sacrifices sonic accuracy as additional circuitry is introduced to one channel In Mixed Mono the left channel is inverted see diagram below or on the bottom of the amplifier Bridged Mono for dedicated single channel operation ideal for driving subwoofers It is also used when large amounts of power are necessary for single speakers In bridged mono only the right channel input is active L L M ST BR MIXED MONO us LR COHERENT STEREO BRIDGED MONO L R In bridged mono only the right channel input is active NOTE If you intend to drive a REFERENCE Class A amplifier in Mono but have stereo outputs from
18. rovide you with many years of listening pleasure Should your amplifier ever need service or replacement due to theft please record the following information which will help protect your investment Model and Serial Dealers Name Date of Purchase Installation Shop Installation Date CAUTION Prolonged listening at high levels may result in hearing loss Even though your new Soundstream REFERENCE Class A amplifier sounds better than anything you ve ever heard exercise caution to prevent hearing damage SERVICE Your Soundstream REFERENCE Class A amplifier is protected by a limited SPECIFICATIONS POWER 4 Q Stereo 2 Q Stereo 1Q Stereo 1 2 Q Stereo 1 4 Q Stereo 8 Q Bridged 49 Mono 29 Mono 1 9 Mono 1 2 2 Mono 12 Vdc REFERENCE Class A 5 0 Watts 12 5x2 50x2 100x2 250x2 250x2 25x1 100x1 200x1 500x1 500x1 REFERENCE Class A 10 0 Watts 25x2 100x2 250x2 500x2 500x2 50x1 200x1 500x1 1000x1 1000x 1 THD 0 196 Signal to Noise gt 100 dB Frequency Response 20 Hz to 20 kHz 0 5 dB Stereo Separation gt 90 dB Damping gt 200 Input Sensitivity 200mvV 2 0V or 500mV to 5 0V Input Impedance 10K ohms LSE Q Reference CA 10 0 0 7 2 8 Q 0 to 9 dB adjustment from 30 to 60 Hz Dimensions W x D x H REFERENCE CLASS A 5 0 12 25 x 9 8 x 2 25 REFERENCE CLASS A 10 0 15 0 x 9 8 x 2 25 19 PROTECTION CIRCUITRY Your REFERENCE Class A amplif
19. the left channel input signal switch be in the UNBAL position as well If you experience alternator wine or other installation noise with both switches in the UNBAL position try moving the LEFT channel input signal switch to the BAL position This should remove any system noise due to installation Using the Balanced RCA input When using the Balanced 6 pin DIN input both switches MUST be in the BAL position Also we recommend that when using this input configuration the INPUT LEVEL switch be in the 0 5 5V position and the gains on the BALANCED NOTE The pin configuration shown 15 Volts 15 Volts in the diagram is the a Left Signal Right Signal view looking into the P j Balanced input jack Leff Signal Right Signal on the amplifier Shield 11
20. your crossover or source unit you can put the switch in 10 INSTALLATION STEP 2 li BALANCED UNBALANCED INPUT The REFERENCE Class A amplifiers have the ability to accept either a standard Unbalanced RCA signal inputs or a Balanced Pro Audio inputs with the use of the Soundstream BLT Balanced Line Transmitter or some other balanced line audio source Before installing your system you should decide UNBALANCED INPUT BALANCED INPUT ADVANTAGES 1 Most preamplifier source 1 Improved Signal to Noise units have UNBAL RCA Ratio S N Ratio outputs Industry stan 2 Excellent noise cancellation dard characteristics 2 No Interface module is nec 3 Immune to noise radiated in essary the car audio environment The REFERENCE Class A amplifiers signal inputs accept two ranges of input signal levels 0 2 2 0 Vrms or 0 5 5 0 Vrms for both Balanced and Unbalanced inputs The input range switch position and level settings are dependent upon the preamplifier source unit output signal level For the best system Signal to Noise Ratio we recommend that the input level controls be set as far down as possible rotated counter clockwise while maintaining an acceptable level of output Using the Unbalanced RCA input When using the Unbalanced RCA input the RIGHT channel input signal switch MUST be in the UNBAL position Also when first installing the amplifier using this input configuration we suggest that
Download Pdf Manuals
Related Search