You will only tell which is better by

Posted by GGA (A) on May 9, 2007 at 18:20:00

In Reply to: High or low level sub inputs? posted by getheleadout on May 9, 2007 at 16:34:56:

listening but here are some pros and cons:

When a high level signal is given to the sub amp the sub amp actually lowers the signal back down to line level, thus creating an extra step in signal processing.

Plus the distortion (or more kindly, the "signature") of the main amp is added to the distortion of the sub amp. The sub driver is not seeing the pure signal created by the main amp but the signal as modified by the sub amp, not to mention the changes caused by the crossover or low pass.

The purist will object to adding another box and cables for the main amplifier to drive, even one with high impedance.

A drawback to the low level signal is that the preamp must drive both the sub and main amps. If the two amps have fairly low impedances they will be even lower when hooked up in parallel. If the preamp does not have a good output stage or the distances are too long for it, the sound may suffer.

Still the only way to tell is by listening.

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Follow Ups Full Thread

Topic - High or low level sub inputs? - getheleadout 16:34:56 05/09/07 (15)

Re: High or low level sub inputs? - MylesJ 12:38:14 05/10/07 (0)

Re: High or low level sub inputs? - JerryS 07:40:17 05/10/07 (8)

If you change amps, you don't have to reset the subs. WRONG... NT - Lowrider 23:34:12 05/11/07 (4)

How was that constructive? - Craiger56 10:18:44 05/12/07 (1)

And yours ? NT - Lowrider 23:37:01 05/12/07 (0)

Re: If you change amps, you don't have to reset the subs. WRONG... NT - JerryS 10:15:56 05/12/07 (1)

Re: If you change amps, you don't have to reset the subs. WRONG... NT - Lowrider 23:48:37 05/12/07 (0)

sub amp changes the sound of main amp - Jon L 10:15:33 05/10/07 (1)

Re: sub amp changes the sound of main amp - JerryS 15:45:10 05/12/07 (0)

Re: High or low level sub inputs? - Dawnrazor 09:47:17 05/10/07 (0)

Low level sub inputs, of course... - Lowrider 01:03:19 05/10/07 (0)

Best way to Bi-amp - Craiger56 19:21:09 05/09/07 (0)

You will only tell which is better by - GGA 18:20:00 05/09/07 (0)

I know REL generally recommends high - silence 16:52:52 05/09/07 (1)

GGA's advice - soundbound 22:55:44 05/09/07 (0)

Follow Ups

You will only tell which is better by - GGA 18:20:00 05/09/07 (0)

You will only tell which is better by

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