Home » Sponsored » Pi Speakers » Stereo subwoofers a big success and a bonus
Stereo subwoofers a big success and a bonus [message #72796] Wed, 23 May 2012 22:49 Go to next message
Bill Epstein is currently offline  Bill Epstein
Messages: 1088
Registered: May 2009
Location: Smoky Mts. USA
Illuminati (2nd Degree)
After more than 3 years without, I finally have my subs back and it didn't take, as I thought it wouold, a major investment. I was pretty sure one of the plate amps was kaput but it turned out to be a cabling issue.

Last night I discovered that one of the "Y" connectors had a broken ground so I fixed it. Then I got to thinking that both "Y"s were made with inferior RCAs so this morning, I drilled for and installed a second set of Vampire CM-Hex in the pre-amp.

index.php?t=getfile&id=783&private=0

When I set up the second sub it worked fine without any hum and after some fiddling with levels and crssover points, I 've got richer, deeper bass with little to no boom. 2 channels and placement right behind the Pis means, just as Wayne says, a higher crossover point may be used w/o confusing the imaging. Nice!

The bonus is that I decided while onna roll, let's hear the bookshelf speakers with the TV. So I placed them on top of the subs which lets the tweets peek over the top of the Pis and they sound great with really full bass on Massive Attack playing the "House" Theme. They really are "poor mans" 2Pi Towers, hollow panels and all. Double bonus is that I was disconnecting/re-connecting the Pis from the stereo to the TV and back again all the time. No more.

index.php?t=getfile&id=784&private=0

Someday I may cover the other box in Formica...
Re: Stereo subwoofers a big success and a bonus [message #72797 is a reply to message #72796] Wed, 23 May 2012 23:49 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18786
Registered: January 2001
Illuminati (33rd Degree)

That's awesome, Bill. Glad to hear the plate amp wasn't broken and that all that was wrong was the Y connector. I'm with you on the double outputs on the preamps - it's a mandatory option for me these days. I've done the Y-cable thing too, but much prefer to have dual plugs on the back of the preamp.

I've got an RDAC front end on my system these days, and I've installed dual outputs on it. I should send you a couple of the RDAC/processor chipsets - if you're interested in a little project, I will. It's like a stepped attenuator with a remote control.

http://parhamdata.com/preamp_remote.gif

http://parhamdata.com/preamp_remote_driver.gif
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