Does the"quality" of jumpers affect the sound?

Clio09, check your specs again. That doesn't sound possible. The 3kHz sounds right, but I can't imagine that you'd have another crossover point up higher in the treble. I'd expect to see the second crossover point between the midrange and woofer at something like 300 hz.

John,
The "AC" that comes out of your amp is not necessarily 120Hz; it's audio band signal so it ranges from 20 Hz to 20 kHz. Maybe your thinking about wall household input frequency???

anyway, Your amp, any audio amp, in general basically modulates a DC power supply with the input waveform, to produce the amplified AC output. One could easily reverse both left and right speaker cable polarity (eg swap red/blk) and not notice a bit of difference (forget about active subs and the possible issues with phase there).

(aside-If all you heard was a 120 hz signal your power supply filter caps are probably out to lunch.)

Clio09 is correct. The Spendor 1/2 has two tweeters, as does the Harbeth Super HL5.

Davemitchell,

My last post did not seem to get through, or maybe the system is slow so I apologize in advance if this is a duplicate. The data I provided comes from the Spendor spec sheet. You can also see the specs here:

http://spendoraudio.com/exp800.htm

Clio, in that case, you would want identical cables ideally or at the very least, two cables from within one line that are very similar.

Your crossover point occurs in the critical midrange where our ears are most sensitive. The last thing you want is to have a change in character where the tweeter hands off to the midrange. Identical cables will insure continuity in this critical region.