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367 Search Results Found |
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Forum: Thermionic Emissions «»
Posted on: Tue, 23 July 2024 21:52 «»
By: gofar99
Re: Sonic Difference between New Tung Sol 6550 vs KT120 vs KKT150
A can of worms. I find the JJ KT88s to last forever. The ones in my original amps (2009) are still fine. I run them in class A at 85% dissipation U/L mode. I do the same with KT120s in the bigger amps. None have ever failed. YMMV as always. There wa...
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Forum: Thermionic Emissions «»
Posted on: Thu, 12 October 2023 11:21 «»
By: positron
Re: Class A, AB1, B, C Operation/Modes
Hello All,
I just came back from out of state and saw the above post.
>> Recently, I have been seeing standard definitions being altered.
>> I am posting in response to the previous post and simplifying as much as possible to help the ...
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Forum: Thermionic Emissions «»
Posted on: Sun, 24 September 2023 00:42 «»
By: BreakneckRedneck
Re: Class A, AB1, B, C Operation/Modes
Hi guys, I haven't posted on here in years, though I lurk and read often. I apologize if I sound uncouth to post out of nowhere with something like this; I just wanted to throw in a clarification concerning operating class, as there are many misconception...
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Forum: Pi Speakers «»
Posted on: Fri, 07 April 2023 08:20 «»
By: Wayne Parham
Re: Am I in the Right Place?
You've got mail!
You'll want the spacing between horn and midwoofer to be as close as possible to provide a tall forward lobe. Watch the "Vertical Nulls" video in the "Crossover optimization for DI-matched two-way speakers" link I...
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Forum: Pi Speakers «»
Posted on: Fri, 24 February 2023 11:59 «»
By: Ybolg
Re: Subs for floorstander and corner horns
Wayne,
Thanks for all the clarification!
I have another question which may or may not have been answered elsewhere. I'm looking at subwoofer plate amps, and I'm leaning towards the Dayton Audio SPA500. Since your 3pi subs are carefully tuned to 20Hz,...
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Forum: Thermionic Emissions «»
Posted on: Sun, 05 February 2023 20:40 «»
By: positron
Class A, AB1, B, C Operation/Modes
How Class A, AB1, B, and C Operation Work and Differences
I thought it would be informative to discuss the differences between
Class A, AB1, B, and C operation. By doing such, one will more fully
understand how each component in your system operates...
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Forum: Pi Speakers «»
Posted on: Thu, 29 September 2022 08:19 «»
By: Ybolg
Re: Subwoofer amp and crossover
Wayne,
Thanks for the tip. Now I've gotten the deep dive on flanking subs and have a better idea of what I'm doing. With the idea of blending in that range I can understand the 12dB instead of 24dB taper.
My understanding is the subwoofer Amp isn't sup...
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Forum: Speaker «»
Posted on: Sun, 10 July 2022 14:33 «»
By: Shane
Re: 2 channel reinforcement subs
What's your chain to the subs? Are you using a pre-out of the amp, or LFE, or high level outs? Basically trying to see exactly how to hook these things up without having a pre-out on my main amp. I guess the easiest would be to use the extra set of speake...
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Forum: Tower «»
Posted on: Fri, 08 July 2022 10:17 «»
By: Pano
Re: John Busch
Things that might be there.
A list taken from 2018. I did not see any of this in the photos, but I'm pretty sure that much of it is still there. It's a gamble, really. If you want to buy the lot, some of this stuff will be there for sure. There are ...
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Forum: Silicon Valley «»
Posted on: Tue, 21 June 2022 22:08 «»
By: positron
Re: Tubes versus Transistors
Don't worry, many over the years have also thought tubes were somewhat an oddity, including my professors. Fortunately, being older I grew up with tubes, and worked on amps and radios since I was 7 or so. (Am I really fortunate??)
Anyway, with the adv...
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