QBASS PLUS™
QBASS PLUS™
On POWERCLASS™ amplifiers, we've taken bass control to a higher level with QBASS PLUS™ . The two QBASS switches (labeled 1 and 2) on the front end of the amplifier allow you to select one of four frequency centers - 30 Hz, 36 Hz, 44 Hz and 60 Hz. The Q SELECT switch determines the width of boosted frequencies. A 'Q' of 2 (switch out) will give you a wide boost while a 'Q' of 4 will boost a narrow range of frequencies (See chart below). On the rear end panel you will find the QBASS level control and the
QBASS PLUS™
Q B A S S ™ | Settings |
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1 | 2 |
| Freq. | +18dB |
IN | IN |
| 30Hz | +12dB |
IN | OUT |
| 36Hz | |
| +6dB | |||
OUT | IN |
| 44Hz | |
| 0dB | |||
OUT | OUT |
| 60Hz | |
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Q = 4 | Q = 2 |
Optional QBASS REMOTE | 30Hz | 36Hz | 44Hz | 60Hz | ||
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This boost control can be mounted |
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QBASS |
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in the dash and will supersede the |
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boost control on the endplate. |
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Optional QPORT™ expansion | BASS |
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module allows one boost control |
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to operate multiple amplifiers. Each |
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QPORT™ has outputs for four amplifiers |
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as well as another QPORT™ for greater expansion. See your Authorized PrecisionPower Dealer for more information!
C r o s s o v e r S p e c i f i c a t i o n s
PC PRO 6800
Linkwitz-Riley crossover topology used throughout.
High Pass (Channels 1/2, 12dB/Octave stereo) Fully Variable 20 Hz - 20 KHz. Band Pass (Channels 3/4, 12dB/Octave stereo) Fully Variable 20 Hz - 20 KHz. Sub or Band Pass Channels 5/6, (24dB/Octave mono Fully Variable 50 Hz - 500 Hz Lowpass or 12dB/Octave stereo 20 Hz - 20 KHz Bandpass).
Sub or Band Pass RCA outputs will be the opposite of Channels 5/6 Crossover. QBASS PLUS™ on Lowpass assigned to Channels 5/6 or RCA OUTPUT. CAUTION: QBASS PLUS™ should only be used in systems with strong subwoofers. 18dB is a lot of bass boost and could damage full range speakers.
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