Here's what I've done so far. I'm using the following hookups. Signal is Analog RCA from the SB Classic to the Lepai. Klipsch satellites are RCA connected to the Lepai using its volume control. The SB is set to 100%. The Klipsch sub is 5.7 ohm and the each satellite is showing around 4.3 ohm.
This is what I did so far: - Switched out the Lepai - no difference; both Lepai amps perform the same. - Hooked up another dc power supply (not my hacked laptop charger) rated at 19vdc and 3.9amps - no difference - Hooked up a digital DC power supply fixed at 22vdc (the max rated voltage for the Lepai) with floating current so the amp could draw what it needed - no difference - Took the SB out of the system and replaced it with a Yamaha radio for the source - music was louder but still not much more so - maxed out it about a background comfortable level. - Hooked the Klipsch satellites to a Sony AVR along with the subwoofer (using the mono sub output to one sub RCA input - tried both right and left) with input from the SB to the CD in channel - I can crank up the volume but the sounds is simply awful (muffled and distorted and the woofer just chuffs along incoherently. Here's what I think I've learned. - No issue with my SB Classic - it seems to be working fine. - No issue with my hacked laptop charger - it's putting out precisely 19vdc and will ramp up current when demanded (I hooked it to a light strip to check). - I can't test anything with the Sony AVR since it wants at least 8 ohms and can't do anything with these low ohm speakers. - The Lepai needs more gain to work with - when the setup was connected to my digital power supply it never pulled more than .4 amps. When you turn the Lepai's volume knob from zero it will amplify about half way up the dial and beyond that there's no increase in sound. Here's where I think this is headed - two options: 1 - Buy a good DAC with a pre-amp stage to boost the gain. 2 - Pitch the whole Klipsch system and replace it with 8 ohm satellites and a real sub. 3 - Just buy another K. Promedia setup and stop getting fancy. By the way, the reason I went through all of this is because I made the fundamental mistake of wiring the Klipsch system into my walls. That was a great strategy until it failed. It's in a small reading/listening room which is a great place to chill but doesn't need a lot of punch. I just didn't want to tear everything out and was looking for a quick fix I could pull off with the existing wiring. Lesson learned. The SB is a fantastic device - anyone with a Classic or Touch that has a nice, small-area solution I'm all ears. ------------------------------------------------------------------------ traderyoda's Profile: http://forums.slimdevices.com/member.php?userid=30878 View this thread: http://forums.slimdevices.com/showthread.php?t=113854 _______________________________________________ discuss mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/discuss
