atmasphere
Responses from atmasphere
| 20 Vintage Amps That Prove They Really Don’t Make Them Like They Used To @quincy This is an interesting article and worth reading. But the premise of the article is false. There are plenty of amps out there that are built 'like they used to' in that they are built with high quality parts and construction (including p... | |
| 6SN7 Tube Voltages @jaybe It sure looked to me that he did. Don't get anything that doesn't have a suffix and you should be fine. So GT, GTA and GTB are all good. | |
| 6SN7 Tube Voltages @jaybe 'NOS' stands for New Old Stock so I was referring to older tubes. If you're buying from a reputable tube dealer they will pay attention to the suffix of the tube type you specify. | |
| 6SN7 Tube Voltages @jaybe No-one makes a 6SN7 (no suffix) these days so if you’re buying new tubes its no worries. If you buy NOS make sure you specify the suffix and you’ll be fine. | |
| Ripple current Q for amp capacitors I was reading about reforming the large caps. I'm still not entirely clear on a rig to try it, and i've been rebuilding crt monitors and late 70's-early 80's arcade machines as a hobby for 3 decades. But a question I had, and maybe you'd know, is... | |
| Hattor Audio Autoformer Reference Preamplifier @mitch2 To your question, yes. I don't have a dog in the fight either. I'm simply presenting the facts. I'm still curious about this practice as you can see in my first post. | |
| Hattor Audio Autoformer Reference Preamplifier @mitch2 Atma-Sphere has been doing balanced line longer than anyone else in high end audio to the best of my knowledge- nearly 50 years. The 'broadcast standard' to which he refers is probably the balanced line standard. The reason for its use i... | |
| Single way or multiway I'm not familiar with your specific listening standards, but to avoid harshness in the high frequencies, I found it necessary to remove the whizzer cone. The whizzer tends to exaggerate the treble, especially when paired with certain tweeters. I... | |
| Single way or multiway In contrast, some other well-known and equally respected speaker companies — such as Voxativ, Zu, Cube Audio, and Totem — use crossoverless designs. Who is right, and who is wrong? @bache There are two issues: Doppler Effect distortion and bea... | |
| Can single ended 211 or 212 amplifiers drive magnepan 20.7? interesting though that a 18w 845 amplifier cant drive it but a 25 watt pass labs can! both are class A @thegreenman The output impedance of the Pass Labs amp is much lower so 4 Ohms does not bother it. SETs on the other hand have a high output... | |
| Can single ended 211 or 212 amplifiers drive magnepan 20.7? Also, what do you think about parallel single ended amplifiers? eg 2 or 4 211 tubes per channel? I have heard some people say PSEs lose the magic as their power supply is shared/compromised compared to pure SETs. @thegreenman The problem with b... | |
| Can single ended 211 or 212 amplifiers drive magnepan 20.7? i know of those very rare stuff tt prob will, for example NAT audio large tube amps that output 120w class A @thegreenman The more power you try to get out of an SET design, the more trouble you have with bandwidth. This is true of PushPull tub... | |
| Can single ended 211 or 212 amplifiers drive magnepan 20.7? @thegreenman An SET based on a type 45 power tube might make about a Watt. Certainly not 7; if your amp really uses 45s and makes 7 Watts, its push-pull not SET. But to be clear on your original post, no SET made will drive Maggies. But FWIW the... | |
| Suggestions for a holographic preamp? @larsman One other tip when investigating preamps: The output impedance is usually specified at 1KHz. But if you want to have the preamp play bass as well as it does the midrange, the output impedance at 20Hz is nice to know too. If the preamp ... | |
| Suggestions for a holographic preamp? I don't know why he couldn't have put a 'Mute' button on there - all I really require is volume and mute. @larsman Many mute circuits have the potential to mess with the sound. Since your amp has a balanced input you might consider a balanced... |