Recent content by mike7877

I didn't see your ad, but I just got one a couple weeks ago and am very happy with it... Did you upgrade to something else? The IMO the Octo is near perfect, so I have to ask - what are you upgrading to, and what do you listen with? Did you suffer catastrophic hearing loss at work and clarity no...

I drive a pair of ATC SCM20 Pro PSL Mk2 studio monitors with mine when I listen at lower levels. They're 85dB/w and in a 12x10ft room with 8 foot ceiling (4x3.3m with normal ceiling), and they can reach decent listening levels. It'd be perfect if there was another 3dB headroom, but it's not far...

Nice. Check this out: 50mV -83dB THD+n SNR has to be higher than THD+n. In this case I don't know by how much, but for fun let's say the noise is at -87dB compared to signal - puts it pretty high up there in the ASR chart of headphone amps (best being 95 except for the L30 II)... We already...

I have the E50 and A70 Pro. Get the E70 Velvet (which I have as well). At least buy both and try them if you're really leaning into the E50, then send the E50 back lol. edit: or maybe keep the E50, depends on your opinion (as you're the one who has to live with it). Which ever you choose, it...

I had a huge thing written about what I believe is happening inside these things I meant to re-read and post, but my PC shut down and when I came back to the thread, the forum hadn't saved it like usual :/ They use these chips in their non-headphone amps as well, so they may be the last stage...

I'm completely able to be "helped". Thanks for finally "helping" me by finally telling me the reason you "think" the way you do. Sounded more like an unfounded opinion before

Dang, the built in volume control wasn't measured

I already went over why it's safe to drive the speakers. Output impedance is low enough and there's a limit on the current - you can't damage the thing driving 6.5 ohms... The manual gives power rating down to 16 ohms and says 8 ohms should be minimum. The average impedance of my speakers is...

Well, not necessarily. The amplifier has a current output capability of 1.03A. It's probably designed to 1.000A The amplifier also has an output impedance of 0.1 ohms. With a good speaker cable and good connections to the 4 pin xlr, you could get a damping factor of 40-50 with the 8 ohm nominal...

This does have implications for some very high end headphones which have impedances in the 9 to 11 ohm range. In my post I said I'd be trying to figure out at which impedance this overly aggressive current limiting begins by adding a couple of my 2.2 ohm resistors in series with the speakers...

lol a 50kg Class A amp. I have one of those! - broken at the moment :( it's actually more like 30kg, but that's because its transformer is better (a toroid!) Worst part about the situation is, I was re-capping it - just the power supply (four big honkers 33,000uf 70V + 4x 8,300?uf'ers) on a...

Do people still take this stuff seriously though? Before we knew any better (for sure..) some of the stuff was at least plausible (didn't raising the cables have something to do with impedance? I remember reading something like 15 years ago from something 15 years prior on that...) Now we know...

I have the A70 Pro and L70. Regarding power output... Although you might be inclined to think the A70 Pro would be higher power output into low impedances than the L70, depending on the impedance, this might not be the case. I made myself these handy contraptions for listening to music at low...

I think the high fidelity audio scene is contaminated with garbage because it wasn't that long ago that things were still being figured out, and I mean BASIC things. For example, into the 70s they were still making speakers with the tweeter and midrange beside each other (yes, in...

Do you think it'd get worse (provided the impedance isn't too low for the increased voltage), or remain the same?