This is fantastic. Thanks for sharing your measurements and analysis. I have a suspicion that the differences that you are measuring and hearing...
I wouldn't worry too much. I've tested a few orthos (ranging from the efficient 18 ohm MM-500 to a Susvara) off a transformer coupled amp with a 5...
I'd be surprised if you found anyone who has heard both designs. SE amps tend to be very sensitive to part selection as well, so the "how" matters...
It's a classic for a reason, if not a bit long in the tooth. For something a bit more modern, I'd take a look at the Bartola 45 amps. They revised...
I'm working on a transformer-coupled solid state amp and had the opportunity to pick up the new nanocrystalline core Lundahl output transformers....
I've not met a power supply that didn't benefit from choke filtering. Most LPS rely on feedback to reject line noise. At very high frequencies,...
I was interested in the suitablity of the Cinemag CMOQ-3 as an input transformer or balanced to SE interface between a DAC and amp. It's a...
As a rule of thumb, transformers offer the lowest distortion when driven from a low impedance and a low signal level. Adding an attenuator after...
It seems to be able to do SE to balanced and vice versa, but it's got an awfully high DCR, and fairly low inductance for a core that big. From the...
I recently got access to an APx515. It is uncalibrated, and I'm still learning how to use it, so take the following with a grain of salt. :) I've...
I contend it's not the size of the inductor that counts, but how you use it. :) Here's my version of the circuit. I would make some changes if...
Afraid so. The good news is that the part with the incorrect footprint is part of the servo loop; it does not need to be populated for the current...
And they're stuffed. I uncovered a lot of issues in the process, so will be revising the boards once more. I'm really pleased with performance so...
Is "unnecessary" not code for "you should totally do it!" in audio? :) Transformer coupled pres were not uncommon in the early days. The Raven...
This aligns pretty well with my impressions too, particularly comments on the voicing and bass. I'm not sure what amps you were using, and I...
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