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366 Search Results Found |
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Forum: Pi Speakers «»
Posted on: Mon, 02 November 2009 14:21 «»
By: Wayne Parham
Re: Multisubs
I personally use a Class A FET amplifier, the ProFet amp from Selectronic. This requires a low-pass filter in front of the ProFet amp, and I have played with several types from passive line level filters to various off-the shelf devices.
The one I ...
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Forum: Pi Speakers «»
Posted on: Sat, 05 September 2009 11:19 «»
By: Norris Wilson
Pi push pull slot loaded subwoofers?
Hi Wayne,
Do you offer a Push-Pull sub woofer design similar to your 12 Pi horn sub woofer, but with slot loaded cabinet?
If so, what are the dimensions of the box?
Would there be any special placement requirements over a single driver sub such ...
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Forum: Pi Speakers «»
Posted on: Wed, 13 May 2009 01:26 «»
By: Bill Epstein
Re: Nice
Power tranny is the Allied, OPTs Trancendar and the choke, Triad 6H; all mentioned on the Tubelab pages. I used a mix of KOA Speers (kiwame look-a-likes) and the liddle red PRPs with copper Obbligato .22 couplers. Why .22? That's what I had!The 4" tall Ha...
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Forum: Pi Speakers «»
Posted on: Tue, 12 May 2009 14:16 «»
By: Wayne-o
Re: What I've been doing between hospital visits
Glad to see you back Bill, We missed your input and pictures. Nice looking bike and amp, Seems like you should get more wattage out of a 6550. What kind of B+ voltage are they running on the plate ??? I'm using solidstate amps myself, but I believe ther...
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Forum: Silicon Valley «»
Posted on: Mon, 30 March 2009 17:27 «»
By: Wayne Parham
Active Sub Crossover
On a lark, I purchased an active subwoofer crossover module a few months back. I was looking at options to plate amps, something that would allow me to use one of my many existing amplifiers with subs. My thinking was that plate amps are fine, but I al...
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Forum: Speaker «»
Posted on: Fri, 23 January 2009 12:25 «»
By: Wayne Parham
Re: low pass/crossover and different ohms help
A passive crossover requires a specific load to work with. Too large resistance and it is underdamped, making a peak near the crossover frequency. Too little resistance and it is overdamped, making a shallower slope than expected. In either case, the c...
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Forum: General «»
Posted on: Tue, 18 November 2008 17:23 «»
By: Eli Sweeney
Re: Wireless plate amps
That does look like a fantastic subwoofer. Glad to see wireless subs coming about. For me though, I already have subs and just want to add a plate amp without having to run wires.I saw one online but it looked like it was a proof of concept because there ...
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Forum: Pi Speakers «»
Posted on: Sun, 14 September 2008 13:54 «»
By: Bill Epstein
Re: I'm moving this follow-up here
In Reply to: Re: 1 on the ramp, 1 in the hanger posted by Norris Wilson on September 10, 2008 at 16:50:32:I mentioned in the text that the soundstage is much improved (see the comment about piano position) and the bass is very good but I can expand on tha...
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Forum: Pi Speakers «»
Posted on: Sun, 14 September 2008 13:46 «»
By: Bill Epstein
Re: 1 on the ramp, 1 in the hanger, follow-up
I mentioned in the text that the soundstage is much improved (see the comment about piano position) and the bass is very good but I can expand on that a bit.One of my worries was that the smaller cabinet wouldn't yield the bass impact of the larger and it...
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Forum: Swap Meet «»
Posted on: Tue, 26 August 2008 10:28 «»
By: Russellc
Dynaco: 2 sST-70s, 3 FM-3s
If anyone is interested a have a few Dyna pieces to liquidate:1. ST-70 This is a nice ST-70 in working condition. It has the Allan Kimmel designed Welbourne labs mod I installed in the late to mid 90's. I would like to get 500 plus shipping. If anyone...
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