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Highlights patented downconverter power supply, Class AB output, low frequency parametric EQ, soft clip circuitry, and variable low pass filter.
Details recommended environments and necessary air circulation for the SPA500 subwoofer amplifier.
Explains the use of RCA Left/Right inputs and the LFE direct input for various audio sources.
Describes the IEC grounding power input connector and fuse holder for voltage selection.
Details the Low Pass/Gain, Low Pass Frequency, Power Switch, and Power LED indicator functions.
Explains the EQ-Frequency, EQ-Bandwidth, and EQ-Level controls for audio tuning.
Describes the output lead with quick disconnects for connecting the subwoofer driver.
Provides advice on minimizing or eliminating 60 Hz hum in the audio system.
Lists key performance metrics including power output, SNR, dimensions, and power requirements.
Crucial warnings regarding electric shock, fire risk, and ventilation requirements.
Details product warranty coverage, limitations, and non-warranty service procedures.
Power| rated power output at 8 ohms | 273 watts |
|---|---|
| rated power output at 4 ohms | 540 watts |
| power requirements | 115/230 VAC, 50 Hz/60 Hz |
Audio| signal to noise ratio | 98 dB A-weighted |
|---|---|
| efficiency | 75% |
| input impedance | 12K ohms |
Parametric EQ| frequency range | 18 Hz – 80 Hz |
|---|---|
| bandwidth | 0.1 – 1 Q |
| level adjustment | -14.5dB – +6dB |
Dimensions and Weight| dimensions | 11-15/16" W x 11-15/16" H x 5-1/4" D |
|---|---|
| enclosure cutout | 10" x 10" |
| weight | 15.2 lbs. |
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