If I have a dual voice coil subwoofer can I use 2 separate mono amps, one to
power each coil?
Will I damage the voice coil?
In this setup how do you ensure each amplifier gain is set at identical
levels? (many amp gain levels screen printed on the amp are not exactly
identical from amp to amp.)

Thanks,
Garrett

If I have a dual voice coil subwoofer can I use 2 separate mono amps, one
to
power each coil?

Yes.

Will I damage the voice coil?

Not unless you overpower the coils.

In this setup how do you ensure each amplifier gain is set at identical
levels?

You can do it with an o-scope, or even a meter with a cd with relatively
low frequency sine waves. Or you could simply set them to the same point on
the dial. Contrary to popular belief, it's not essential for you to set
them at identical levels.

Thanks Mark



Mark Zarella wrote:
If I have a dual voice coil subwoofer can I use 2 separate mono amps, one

to

power each coil?


Yes.


Will I damage the voice coil?


Not unless you overpower the coils.


In this setup how do you ensure each amplifier gain is set at identical
levels?


You can do it with an o-scope, or even a meter with a cd with relatively
low frequency sine waves. Or you could simply set them to the same point on
the dial. Contrary to popular belief, it's not essential for you to set
them at identical levels.

In article ,
"Mark Zarella" wrote:

If I have a dual voice coil subwoofer can I use 2 separate mono amps, one
to
power each coil?

Yes.

Will I damage the voice coil?

Not unless you overpower the coils.

In this setup how do you ensure each amplifier gain is set at identical
levels?

You can do it with an o-scope, or even a meter with a cd with relatively
low frequency sine waves. Or you could simply set them to the same point on
the dial. Contrary to popular belief, it's not essential for you to set
them at identical levels.


A much easier way is to temporarily cross-bridge the two amps out of
phase. There's no sound when the levels are matched. If both amps have
bridged outputs, you can cross bridge them to produce two perfectly mono
signals from a stereo source.



Level test, adjust for no sound

\ /
+---||-----+
| |
| | | |
| | | |
- + - +
amp amp
mono mono



Two mono signals from stereo bridged amp outputs:

\ /
+------||------+
| |
| \ / |
| +--||--+ |
| | | |
| | | |
- + - +
amp amp
L R