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Discussion Starter · #1 ·
A friend's got a Rotel 2 channel integrated amp (RA-02)which has two sets of speaker outputs (A & B). It is running a pair of Quad speakers in a bi-wire configuration. Therefore, all four binding posts in the amp are used to connect the two speakers. Being an integrated amp, the Rotel has no separate line level LFE output.


Given this scenario, can a small subwoofer be added? How should it be connected for best results?


Thanks in advance for any feedback.
 

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Hook the subwoofer via the high-level inputs (if the sub has it).


Amp:

(A or B terminal)

l

speaker wire

l

(input terminal)

Subwoofer:

(output terminal)

l

speaker wire

l

(A or B terminal)

Speaker:
 

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yeah, if the amp has no pre-outs, the sub would be connected speaker-level to a pair of the amp's speaker outputs. the speakers could then either be connected conventionally to those same (or different if you have A+B) speaker terminals to be run full-range, or they can be connected to the sub's speaker outputs to utilize the sub's high-pass capability. if the amp does have L+R pre-outs, they can be used to connect the sub, but the speakers would be run full-range in this case. in any of these scenarios, the sub's adjustable low-pass filter (xover) and master level control would be used to adjust the sub's output to match that of the speakers. whether the main speakers would/should be x'd over at the sub's (usually fixed) high-pass filter frequency or not would be up to the user's discretion.
 
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