Infinity PSW 8/230 Classia Series Powered subwoofer – Circuit Diagram

 Classia Series Infinity PSW 8/230 Powered sub-woofer – Schematic Diagram

Frequency Response: 35Hz – 150Hz (±3dB)
Amplifier RMS Power: 150 Watts
Amplifier Peak Dynamic Power : 300 Watts [The peak dynamic power is measured by recording the highest center-to-peak voltage measured across the output of a resistive load equal to minimum impedance of the transducer, using a 50Hz sine wave burst, 3 cycles on, 17 cycles off.]
Crossover Frequencies: 50Hz – 150Hz,
24dB/octave, continuously adjustable
Driver: 200mm (8”) MMD®
Dimensions (H x W x D): 438mm x 279mm x 419mm (17-1/4” x 11” x 16-1/2”)
Weight: 14.4kg (31.7 lb)

PLACEMENT
Since the installation of a subwoofer can be somewhat more complicated than installing full-range speakers, it is essential that you read this section very carefully prior to connecting the subwoofer to your system. Should you have questions relating to your installation, it is advisable to call your dealer or visit www.infinitysystems.com for assistance.  The performance of the subwoofer is directly related to its placement in the listening room and how you align the subwoofer with its satellite speakers. Setting the volume of the subwoofer in relationship to the left and right speakers is also of critical importance because it is essential that the subwoofer integrate smoothly with the entire system. Setting the subwoofer’s volume level too high will result in an overpowering, bloomy bass.

Circuit Diagram (Schematic)

Click on the schematics to zoom in

Setting the volume level too low will negate the benefits of the subwoofer.  Here are several additional facts on installation that may prove useful. It is generally believed by most audio authorities that low frequencies (below 125Hz) are no directional and, therefore, placement of a subwoofer within any listening room is not critical. While in theory it is true that the larger wavelengths of extremely low frequencies are basically no directional, the fact is that, when installing a subwoofer within the limited confines of a room, reflections, standing waves and absorptions generated within the room will strongly influence the performance of any subwoofer system. As a result, specific location of the subwoofer becomes important, and we strongly recommend that you experiment with placement before choosing a final location.  Placement will depend upon your room and the amount and quality of bass required (for example, whether or not your room permits placement of the subwoofer near either satellite). Be sure to leave a minimum of 15cm between the wall and the port on the subwoofer.

Specifications:

Type: single driver subwoofer
Frequency Response: 35Hz to 150Hz
Crossover Frequency: 150Hz
Sub Bass: 1 x 203mm MMD
Dimensions: 445 x 270 x 426mm
Weight: 15kg
Note: 100 watt power amplifier
Year: 2006