82 Cornwalls Posted May 27, 2023 Share Posted May 27, 2023 On 5/21/2022 at 2:22 PM, mustang_flht said: ☺️👍 Example and Explications the MC2255 : http://www.hifi-classic.net/review/mcintosh-mc2255-284.html The output stages of the MC 2255 operate in class-B, but a unique biasing system completely eliminates the crossover distortion usually associated with class-B operation. That is typical McIntosh mumbo jumbo. Translation: low bias class AB. Or McIntosh amps really are just suitable for PA use. 1 Quote Link to comment Share on other sites More sharing options...
82 Cornwalls Posted May 27, 2023 Share Posted May 27, 2023 @Flevoman Did you ever change anything? Quote Link to comment Share on other sites More sharing options...
Flevoman Posted May 27, 2023 Author Share Posted May 27, 2023 1 hour ago, 82 Cornwalls said: @Flevoman Did you ever change anything? Wow... Euhhh... Hang on, I think you are replying to a post I started some time ago. At this point I was just starting with upgrading my HiFi set...and yes, a lot have changed 😄 (and still is 😉) At that period I bought the Melody MDA2 (2A3 tubes) After that I tried some other amps because I wanted to upgrade my set. And recently I found a Decware zen triode and since two days also the Willsenton R300. Meanwhile giving cables and powercords a chance... So, yeah... Having a good time with this hobby, and still a lot to learn 🙃 1 Quote Link to comment Share on other sites More sharing options...
henry4841 Posted May 27, 2023 Share Posted May 27, 2023 5 hours ago, the real Duke Spinner said: DC series were horrible for Stereo use. 🙄 Let's not forget the ICY 150 preamp, antihero audio turd ....Specs aren't everything And I bought both being young and trusting specifications. Both pieces DC300A and IC 150 pre were highly reviewed and praised for their great spec numbers. None better with either piece. Better specs than the test equipment the labs used. Now I mostly just use SET tube amplifiers with the worse specs of all the classes of amplification. Got caught up in the hype of all the rags that praised gear according to numbers at that time in audio history 1 Quote Link to comment Share on other sites More sharing options...
the real Duke Spinner Posted May 28, 2023 Share Posted May 28, 2023 I use a Macrotech now Have not strayed far from the fold. 🙂 Quote Link to comment Share on other sites More sharing options...
Coytee Posted May 28, 2023 Share Posted May 28, 2023 4 hours ago, the real Duke Spinner said: I use a Macrotech now Have not strayed far from the fold. 🙂 The Flogging Crew will be there in about 67 minutes to give you the appropriate flogging of which you deserve. 1 Quote Link to comment Share on other sites More sharing options...
Marvel Posted May 28, 2023 Share Posted May 28, 2023 13 hours ago, Coytee said: The Flogging Crew will be there in about 67 minutes to give you the appropriate flogging of which you deserve. That's ok... I am now using 'The Duke', the modified Crown D-45 and a Crown XLi800, 25 and 300 wpc respectively. Dennis used to say the Icy 150 and DC300A sounded aweful. What I hear with these is perfectly fine, both quiet and smooth (still kinda miss my old 2A3 amps, though). 1 Quote Link to comment Share on other sites More sharing options...
the real Duke Spinner Posted May 28, 2023 Share Posted May 28, 2023 D45/60 are fantastic Horn amplifiers due to low distortiotl they tend to fall flat on the Peaks when used full range Quote Link to comment Share on other sites More sharing options...
richieb Posted May 28, 2023 Share Posted May 28, 2023 Low distortion is admirable but just as critical for horn speakers is a low noise floor. Nothing more annoying to my ears than a “hissy” amplifier. 1 Quote Link to comment Share on other sites More sharing options...
Coytee Posted May 28, 2023 Share Posted May 28, 2023 If I were to be above board and honest, I read Macrotech as McIntosh. Perhaps it is I, that need to be flogged. 15 hours ago, the real Duke Spinner said: Macrotech 1 Quote Link to comment Share on other sites More sharing options...
richieb Posted May 29, 2023 Share Posted May 29, 2023 44 minutes ago, Coytee said: If I were to be above board and honest, I read Macrotech as McIntosh. Perhaps it is I, that need to be flogged. - make it so. Let the flogging commence - 1 Quote Link to comment Share on other sites More sharing options...
Coytee Posted May 29, 2023 Share Posted May 29, 2023 30 minutes ago, richieb said: - make it so. Let the flogging commence - Maybe I'll just fess up and show a picture of myself (in the Indy-500 thread) wearing a wicket set of whiskers on my face. Perhaps that will suffice. Quote Link to comment Share on other sites More sharing options...
pnort Posted June 3, 2023 Share Posted June 3, 2023 interesting thread--took awhile to read. For all the concern over the amplifier, not much discussion about the choice of tube brand, new or old, etc within a particular tube type such as EL34. In the tube forum this is a big deal for many enthusiasts. They would experiment with the tubes within say the ST70 amp, maybe before moving to another amp design. Resistors generate noise when current flows through them. One type of noise is low frequency noise called pink, or 1/f noise because it increases in magnitude as the frequency decreases. You can find an article about this by Moore on the internet to see which resistors have the least of this noise. I don't know if this impacts audio amps much. I bought Klipschorns in 1972 and recently got back into the audio hobby in a modest way. I've built an Elekit 8600S 300B amp after reading a review in Stereophile mag. Plenty of power for Klipsch speakers. 1 Quote Link to comment Share on other sites More sharing options...
CCG Posted June 11, 2023 Share Posted June 11, 2023 Listening on this through 6c33c-b SE amp. Sounds amazing! There are lots of music on Spotify that I hear is not hi-rez'd.. I prefer listening more to the non re-master as long as the needle drop is clean or should I say recorded right even there's clicks and pops.😺 1 Quote Link to comment Share on other sites More sharing options...
CCG Posted June 18, 2023 Share Posted June 18, 2023 Been running my new 15 watt integrated recording tube amp with all the bells and whistles of recording inputs and outputs. Its just 18 days right now and this is the first custom made tube amp I had that I'm not entirely happy with the outcome. I think I made the wrong decision of getting a SE mode instead of push pull. It breaks up way to early, the bass dynamic sounds flatter and the heat is twice more. I have a 14 watt tube amp that dominates the 65 watt KG tower speakers all day long. This new amp is choking.. OMG! I might end up sending this back and have it changes to a push pull mode.😒 1 Quote Link to comment Share on other sites More sharing options...
Flevoman Posted June 18, 2023 Author Share Posted June 18, 2023 Did you have this amplifier custom-made? Quote Link to comment Share on other sites More sharing options...
CCG Posted June 18, 2023 Share Posted June 18, 2023 22 minutes ago, Flevoman said: Did you have this amplifier custom-made? Oh yeah... I had it designed for recording purpose. Quote Link to comment Share on other sites More sharing options...
Flevoman Posted June 18, 2023 Author Share Posted June 18, 2023 Too bad he doesn't suit you. I hope that after the conversion, he will suit you well. Quote Link to comment Share on other sites More sharing options...
82 Cornwalls Posted June 18, 2023 Share Posted June 18, 2023 3 hours ago, CCG said: Been running my new 15 watt integrated recording tube amp with all the bells and whistles of recording inputs and outputs. Its just 18 days right now and this is the first custom made tube amp I had that I'm not entirely happy with the outcome. I think I made the wrong decision of getting a SE mode instead of push pull. It breaks up way to early, the bass dynamic sounds flatter and the heat is twice more. I have a 14 watt tube amp that dominates the 65 watt KG tower speakers all day long. This new amp is choking.. OMG! I might end up sending this back and have it changes to a push pull mode.😒 Or the design is not the best. The Almarro A318A was redesigned and bass performance was one of the things addressed, the A318B plays well with a much wider range of speakers. Quote Link to comment Share on other sites More sharing options...
CCG Posted June 18, 2023 Share Posted June 18, 2023 27 minutes ago, 82 Cornwalls said: Or the design is not the best. The amp does what its suppose to do but its not the right application for my existing system setup and needs which is more in recording playbacks. On audiophile listening SE amps sound great and more brilliant even in lower volumes. But they need the help of a sub-woofer so it will sound glorious to fill the lower frequency. My other 300b SE amp is the same. But my 300b PP and 6c33c-b pp may not have the ultimate magic midrange a SE amp offers has but its close enough with the right setup. Anything below 100hz is magical and it doesn't choke on high volumes. SE amps are opposite. Quote Link to comment Share on other sites More sharing options...
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