2. amps-preamps
  3. 1106298382

any fixes for impedance mismatch

i have a hovland hp100 (output imp = 2.5K ohms, rise to 4.3k at 20Hz) going to pass x150.5. ( input imp 10K ohm rca, 20K ohm XLR).

The combo sounded better than x1/x150.5 and many other i tried. Base is not lean.

Are there ways to match the impedance to further improve sound? Ten times rule to avoid current sharing.

hovland rca out only, using rca to xlr connector causes lowlevel hum.
glai

Showing 1 response by eldartford

eldartford
4,262 posts
 
If you use a single ended signal into a balanced input (XLR) you must ground the (-) pin of the XLR connector. If you don't hum will result.

The ten-to-one rule is just a rule of thumb to keep you out of trouble. Rules are made to be broken. If it sounds good, it is good.

Yes, circuit changes could be made to lower the preamp or raise the power amp, but then you wouldn't be using the same electronics.
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