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RE: Should a sub be adjusted constantly?

Posted by David Aiken (A) on July 26, 2007 at 16:40:21

In Reply to: Should a sub be adjusted constantly? posted by jimbill on July 26, 2007 at 16:18:57:

The answer depends somewhat on the sub and connection methods.

If you have a REL, you can have it connected both with high level (speaker) connections and low level (interconnect) connections and there are separate gain and phase settings for both inputs though the crossover setting remains the same. If you use one connection for music and the other for HT, you need to set both but then you just swap between the 2 settings via the phase setting.

If you've only got one connection, the setting should be the same for both but a lot depends on your AV receiver if you're using one. The LFE channel on soundtracks requires a 10 dB boost and the receiver should supply this automatically when decoding the sound track. If it does, then there's no need to change anything. If it doesn't, then bass is going to be fairly light with soundtracks unless you supply the missing 10 dB of gain somehow. Ideally you should be able to do this at the receiver and not touch the sub's own settings. Just balance it for music and then, when you're happy with that, add the extra gain for movies via the receiver's channel balance or its sub settings if it has control over that.

Finally, the other problem that can arise is if you like a different bass balance for movies to what you like for music. In that case you're going to want to set things differently for each. My preference would be to do it at the receiver rather than the sub if possible.

If you're using an amp rather than a receiver and don't have channel balance controls, then you're going to have to change things at the sub if you need to change the settings.




David Aiken

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