SS amps that sounds close to a 2a3 tube amp
Probably a used Pass Labs Cl;ass-A Aleph, but they are room heaters.
Cheers George
Showing 9 responses by georgehifi
New CODA CSiB 1st 18 watts in Class A Wow!! Very nice unit, even looking at this one can see what amount of heat sinking is required. https://img.audiofanzine.com/images/u/product/normal/coda-continuum-csib-192198.png https://cdn.shopify.com/s/files/1/0241/4615/products/CODA_High_End_CSiB_Preamp_Amplifier_Best_Sound_... And uses 40!!! bi-polar outputs, best for current delivery. https://cdn.shopify.com/s/files/1/0241/4615/products/CODA_High_End_CSiB_Preamp_Amplifier_Best_Sound_Inside_1024x1024.jpg?v=1395188394 Coda CSX Precison Bias Class A/AB amplifier design, with discrete JFET differential input stage, VMOSFET voltage gain DC coupled to an ultra wideband bipolar output stage. I just changed from Pass Inter-60 to this. And maybe even from my favorite Integrated Gryphon Diablo 300. Cheers George |
Fact is most techs (I’m a EE) wouldn’t make any such assumptionsIf you read what I said. "Fact is any tech will tell you these amps "look" to be the same" save for the differences I mentioned. Look!!!! to be the operative word here. Like I said you need to see the forest for the trees. And "if" your a decent EE if you could see that it so obvious, as they look to have the same circuit topology. |
No I’m not disputing the reviews by two different reviewers on different systems. As for the specs (not full tests as Stereophile do) they don’t prove the amps are not cast from the same mold, but for differing rail voltage, wattage output and bias settings. Fact is any tech will tell you these amps "look" to be the same, save for the different secondary transformer voltage and bias they would have. I understand this is a bit of a pill for owners or retail sellers to swallow, but there it is. 590 https://cdn.shopify.com/s/files/1/1040/6126/products/luxman-l-590axii-integrated-amplifier-luxman-2_714x700.jpg?v=1574670463 509 http://www.luxman.com/asset/product/L-509X/gb3.jpg Cheers George |
Great amp the Gryphon, will drive anything and does give a taste of Class-A sound, but it’s an entree and not the main meal like 30w> Class-A could give. When you hear something like the Gryphon Antillion Evo switched between it’s low 25w, medium 50w, and high 150w Class-A modes you know. The Diablo 300 it’s said is around 10w of Class-A. And it has far more heatsinking than the Lux 590axII has. And they run HOT!! https://www.monoandstereo.com/2016/04/gryphon-diablo-300-integrated-amplifier.html say Cheers George |
Nelson Pass is the Class-A master, and he says the Inter 60 has 30w-8ohms of Class-A on it and he uses that size of "external" heat sinks for it to dissipate that heat, and they do run very hot. Then the smaller "internal" heatsinks of the Lux are not dissipating the same amount of Class-A, especially "if" the Class-B wattage into 8ohms is even higher than the Pass Int-60 Things don’t add up with the Lux Class-A figure presented or the Class-B wattage. The higher the rail volts for higher Class-B claimed, then "for the same Class-A bias(30w)", the heat dissipation goes up exponentially. Cheers George |
The Luxman 590 bench tested to 90 w into 8 ohm in one of the reviewsCan you post a link to this review please? Not in Class-A, Class-B maybe if the rail volts are higher than for 30w which is unlikely as the heat factor goes up exponentially with higher rail voltage. Doubtful looking at all the other specs from others because then it would be classed as a Class-A/B amp, those piddly small heatsinks couldn’t take it, they look lucky to even take 30W of Class-A. https://ibb.co/BV8CVDC Cheers George |
ramon74 Don’t think anything could touch the Mark Levinson ML2 25w-8ohm monoblocks to a given volume level. https://img.usaudiomart.com/uploads/large/2229206-5c605986-mark-levinson-ml2.jpg https://www.hifido.co.jp/photo/05/504/50446/c.jpg But I would go for something with more in reserve, the Pass Int-60 Class-A/B, still has the 25w or 30w-8ohm of Class-A like all the above ones do. But you have as Stereophile tested up to 79w-8ohms, 125w-4ohm, and 200w-2ohm of Class-B for any big dynamic musical passages, or inefficient speakers. https://www.passlabs.com/products/int-60/ Cheers George |