OSD Audio PS88 subwoofer
Contents
1. ON position the subwoofer will remain on as long as the POWER ON OFF switch is in the ON position 8 High Level Inputs Under normal conditions the preferred connection is through the Line Level inputs If this is difficult or not possible in your system then you can use the speaker Level inputs Also if you experience excessive noise or hum with the Line level input will result in a lower background noise level Connect the Speaker Level inputs to the speaker level outputs of your amplifier or receiver using speaker wire The binding posts can accept bare wire connections only 9 High Level Outputs 10 Manual ON OFF Switch In the ON position the subwoofer will remain on constantly or can turn on and off automatically when the AUTO ON circuit is engaged In the OFF position the subwoofer will remain off until the switch is manually turned back to the on position AUTO position the subwoofer will automatically turn off after 20 minutes with no signal When this switch is in the on position the subwoofer will remain on as long as the POWER ON OFF switch is in the ON position 11 IEC Main Power Connector Fuse Location The amplifier is supplied with a two pin mains inputs supply Use only the appropriate IEC mains lead provided with the product Also fitted an external main fuse If a fuse blows during operation a spare fuse is pr2. 16lbs 15mm MDF Board Piano Lacquer EEEE 180 Watts Subwoofer 42 OZ Paper Foam 2 Yrs OSD Audio 775 Columbia St Brea CA 92821 www osdaudio com Yel 888 779 4968 Fax 714 256 8300
3. system current draw does not exceed the breaker current rating This arrangement will reduce the possibility of an audible hum in you system caused by a ground loop Whenever possible keep the power cords away from the signal cable or speaker wired to prevent any hum or inference being heard in speakers Choose reliable high quality interconnect cables also called patch cords or RCA cables They should be fully shielded and as short as possible for the job The longest cable in your system will likely be to the subwoofer so choose a good brand Some patch cords can be very tight fit and there is usually a preferred method of getting them off Some have to be removed with a twisting action Be gentle or you may damage the connection of your subwoofer or other components Speaker Level Connections The subwoofer s Speaker Level inputs can accept stripped speaker wires only Make sure that negative speaker wires never touch the positive wires as this will short out and possibly damage your amplifier or receiver Tape Deck Pre amplifier we Amplifier AC outlets on the same circuit breaker Power strip figure B Locations 1 is very good positioning 2 is also excellent but may shake the back 3 Move the woofer approximately three feet wall too much and cause things on or along away from the right wall and place it along the the walls to rattle too much If this occurs use back wall as shown This will substantia
4. OSD AUDIO 1 Volume Control 2 50HZ 160HZ 50Hz Frequency Adjustment 40Hz 3 0 180 Phase Shift OFF POWER CONSUMPTION 180WATTS figure A Explanation of Features and Controls see figure A 1 Volume Control Manual volume control to regulate your subwoofers power output to prevent clipping and distortions caused by overpowering 2 50Hz 160Hz Frequency Adjustment This controls the high frequency cut off point With the control set to the middle the subwoofer will reproduce frequencies up to 105Hz If the control is set fully clockwise the crossover is bypassed and the subwoofer will reproduce a wide frequency range With the control fully counter clockwise the subwoofer reproduces a narrow range up to 50Hz Rotate the control unit the bass sound natural If the mid bass sounds natural but you want more low bass turn the control down alittle 3 0 180 Phase Shift This control is used to acoustically match the subwoofer s output to your main speakers Select the position either 0 or 180 in which your subwoofer has more output at the listening position PS88 Owner s Manual 5 Line Level RCA Inputs 100Hz 120Hz fo 14oHz 160Hz 6 Sub Operation Switch 7 Auto ON OFF 8 High Level Inputs 9 High Level Outputs 4 Power Status LED 110 240VAC 50 60 Hz 11 ICE Mains Power Connector Fuse Location FUSE T 3A 250V 10 Manual ON OFF Switch 4
5. Power Status LED PS88 powered subwoofers have an LED on the panel that indicates the status of the build in amplifier The LED will light red when the amplifiers is in standy mode and green when the amplifier is on and receiving a signal 5 Line Level RCA Inputs Connect with RCA type patch cords to the line Level output of your receiver or preamp If your Pre amplifier or receiver has a single sub LFE output connect it to the subwoofer s left input jack There is no need to use subwoofers right input jack If you want to run your main satellite speakers full range use a y adapter at the pre amplifer output in this way you can send the pre amplifiers output signal to your main amplifier and to the subwoofer at the same time 6 Sub Operation Switch In LFE position the Frequency adjustment becomes disabled and the subwoofer runs in a full range mode from 20hz 2kHz While in sub position the subwoofer reverts to the manual frequency adjustment allowing the user to operate and fine tune the subwoofer to their personal taste 7 Auto ON OFF When the main POWER ON OFF switch is in the OFF position this switch has no affect on the subwoofer When the main POWER ON OFF switch is in the ON position this switch allows the auto circuit to be engaged When this switch is in the AUTO position the subwoofer will automatically turn off after 20 minutes with no signal When this switch is in the
6. frequency effects it can be connected to the subwoofer s Left Mono input as shown This is the simplest and recommended connected in the same way Specification Amplifier Outpt eienen N ae aa aana Eaa eRe Maximum Power Consumption ccccecceseceseeeeeeeeeeeeseeeeeeeeseneeseaeeeaeeeeaeeeeeseaeeeaeeees Frequency Response High Cut Filter INPUt SENS HIVIY arora vevenimedeater s i eee iaaa EN aAa E Signal to NOSE S eara eer E a Aa IEEE AEE Typical THD Input Signal Dimensions Total Weight Box Material The subwoofer will play the low frequency range and an independent subwoofer volume control Make sure this is correctly adjusted and that the Ps88 subwoofer s crossover frequency is set to 100Hz This is by no means an iron clad rule rather it is a good starting point You can set the subwoofer s Bass Level control on your receiver to 0 dB and then use the pre amplifier s subwoofer level control for normal and routine adjustments PRE AMPLIFIER R MAIN SUB LFE OUT OUTPUTS AMPLIFIER INPUTS TO FRONT SPEAKERS sabia ragaaesiedysstuassdes 100 Watts RMS 4 ohms Impedance EE E 180 Watts 25Hz 160Hz 5 0Hz 160Hz adjustable The crossover can be bypassed by rotating the crossover frequency control fully clockwise en eee 20MV 1 5V Sees nee 83 LFE 8484 SUB Typical THD 0 4 LFE 0 3 SUB Input Signal RCA JACK Dimensions HxWxD 101 2 x11 45 x10 45
7. lly the 3 positions Using the line speaker level inputs see figure C If you are using a receiver which does not have a subwoofer output or line level output pre outs you can connect its speaker outputs to the subwoofer s speaker Level inputs The front speakers can still be connected to your receiver The subwoofer s internal amplifier supplies the power to reproduce the low frequency range It receives a sample of the signal going to your front speakers An insignificant fraction of your receiver s power is transferred to the subwoofer HIGH LEVEL ee urur reduce rattling of the black wall and will still pressurize the room with lots of bass There is no need to use the Speakers Level inputs if you are using a separte amplifier and pre amplifier Such systems are best connect using the Line Level Inputs as shown in the previous Diagrams If you are using the Line Level inputs and there is an excessive amount of noise or hum present using the speaker Level inputs may yield a lower background noise level figure C To Front Speakers a 2 COCE Receiver MAIN OUTPUTS System Configurations The following pages show typical connections that you might make in your installation They show how inputs and outputs of the Ps88 sub are connected to your pre amplifier or receiver Connections to a pre amplifier s subwoofer output If your pre amplifier has a subwoofer output often labeled LFE for Low
8. ovided within the fuse holder for replacement to reduce the risk of fire replace the fuse the same type rating High Level Connecting the Subwoofer using the high level speaker connections On the rear of your PS88 Subwoofer are two pairs of red and black binding posts One set is marked input and one set is marked output with each pair designated as left or right Each post is color coded black red These terminals will accept up to 16 guage quality speaker wire The inputs should be connected to the left and right speaker terminals of your amplifer or receiver The Outputs should run from the subwoofer to the left and right satellite speakers Remember always connect red to red and black to black when making connec tions between an amplifier receiver to the subwoofer If you inadvertently reverse on the connections l e red to black you will notice a lack of bass from your subwoofer Connections see figure B Please Consider the following when setting up your new system Before making or changing any connections always make sure that the subwoofer use unplugged from the wall and your other components are turned OFF Also turn down the volume control of the subwoofer and your pre amplifier or receiver This diagram shows all the low power components sharing a power strip which is connected to the same outlet used by the amplifier The subwoofer is connected to an outlet on the same circuit breaker provided that the total
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