Stereo Preamp Connections (RCA): The line-level input jacks should be used when connecting the subwoofer to a preamp, integrated amp, signal processor, line-level crossover, or receiver with stereo preamp outputs. The HD8 also has preamp outputs, useful if your amp has pre-out/main-in jacks.
LFE Connections (RCA): Use the single LFE (Low Frequency Effects) input when the preamp signal is already crossed over by a surround processor or line-level crossover. This input bypasses the built-in crossover. The HD8 also has an LFE output for adding additional subwoofers.
Speaker Level Input: The 5-way binding post speaker-level input jacks connect directly to the speaker outputs of any amplifier, integrated amplifier, or receiver. Your amplifier will not notice a significant additional load when you use these inputs due to their high impedance.
Trigger Input: The sub can be turned on using an external trigger voltage. Applying an AC or DC (tip positive) voltage of 2-30 volts to the mono 3.5mm mini-jack will engage the amplifier. The amp turns off automatically approximately one hour after the voltage is removed.
Power: The rear panel master power switch can be turned off to defeat the automatic and voltage trigger turn on circuitry.
Volume: The Bass Level control on the back panel adjusts the volume of the sub.
Low-pass Crossover: The crossover control allows you to adjust the upper limit of the subwoofer's frequency response. The crossover point is continuously variable from 50 to 150 Hz and the slope is 24 dB/octave.
Phase Adjustment: A rotary knob on the back of the HD8 allows you to adjust the phase of the subwoofer's output. The phase is continuously variable from 0° to 360° for perfect transition from the main speakers to the sub, regardless of position.
Auto Turn-on: When the master power switch is on and a line-level or speaker-level signal is presented to the sub, the amp will automatically turn on. The amp turns off automatically approximately one hour after the signal is removed.
LED: The front panel power LED is red when the HD8 is in standby and changes to green when the amp turns on.
Class-H Amplifier: The PSB HD8 features an efficient, high power class H amplifier. Class H improves efficiency by using a variable power supply rail voltage; the voltage only swings high when necessary, using a music modulated high frequency switching power supply. The available power output is 500 watts continuous, 800 watts dynamic, and 1600 watts dynamic peak.
Woofer: To compliment the powerful amplifier, the HD8 subwoofer uses an 8" high mass poly-coated fiber cone active driver with a cast aluminum basket and high density rubber surround.
Passive Radiator Design: The HD8 powered subwoofer incorporates two opposing 8-inch passive radiators to reinforce the bass output, without taking up enclosure volume with a port tube. The radiator design is high mass and high excursion, and the two radiators facing opposite directions reduces cabinet vibration.
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Store Phone 800-826-0520 Retail $1099.00 Buy it now $499.00 |
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