Of course one argument could be that listening to jazz and acoustic music at low levels (via the CL40 preamp) shouldn't really require subs anyway :)
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I am sure u read the above link.
i am going to use Legacy Wavelet’s DAC + Preamp + Crossover . You can check with Legacy if the preamp section can be bypassed.
Might I suggest using high level speaker outputs instead of low level pre amp outputs to your sub(s); if of course your sub(s) have speaker level inputs.
In my case, since I did not have pre amp outputs from my integrated, I was forced to use speaker level connectivity instead of trying to level match with a fixed preamp output - which I tried with limited success.
In any case, using speaker level & utilizing my subs internal crossover to meet my speakers lowest frequency yields surprisingly excellent bass integration.
My bass quality is very engaging; give it a try if your subs can accommodate speaker level inputs.
I suggest use a automatic a/b line level switcher from MCM Electronics, when the CL40 output a music signal, the switcher will automatically switch its input from CL40 Output 2 to the subwoofer.
Thanks for the tips...
After running a side-by-side comparison again for several hours last night I came to the conclusion that the L-509X just sounds better using its own preamp. The CL40 will go...
I think it may be a matter of the L-509X just breaking in a bit more.
The distortion and hazier sound of the CL40 is too much of a compromise for its excellent front-to-back soundstage at lower volumes.
Using the Loudness button on the L-509X, it is getting very close to a tube-like dimensional soundstage at this point in the break-in process. In an A/B comparison with both preamps at the same volume, the L-509X just sounds superior in every way (and already has the subs integrated).
I had a similar issue. I had the 509x and upgraded to the C-900u m-900u combo. What I did was to use my "B" speakers on the 509x and ran it to the back of my left and right SVS SB-4000 subs. That way your speakers and subs will act as one unit.
With the C-900u it luckily has a XLR out so only one wire to each sub instead of two.
@atownkeep, ha, that’s how I was told my 509X went on the market (upgrade to 900u). Maybe I have your old 509X.
I’m running the left out of the pre-out to an SB2000 and the right out to an SB16 Ultra. Neither sub takes speaker inputs... So my mains are running ”full range,” but they are La Scala IIs, not capable of much bass below 58hz. I have the subs crossed over at 90hz and the integration sounds seamless.