atmasphere
Responses from atmasphere
| Balanced vs Unbalanced? Koegz, in a nutshell, that is the whole point of balanced line operation. The system was created to eliminate interconnect cable problems.There is a standard that has to be conformed to in order for this to be true. If the conformance is not there... | |
| Balanced vs Unbalanced? OK Herman, yeah maybe a little, or maybe more than that :) But really, its pretty easy. If you drive the cathode of the input tube rather than the grid you have what is called a grounded-grid circuit. You need a coupling cap to do it. Turns out th... | |
| Designer Hall of Fame Yeah, a Clint Eastwood with lazers!! I understand he demonstrated a high power lazer to a class that he taught, punching a hole through a brick wall. The next day supposedly the FBI showed up and classified it. | |
| Balanced vs Unbalanced? Herman, Yes, that's true. I've found in practice though that it does not seem to come up. Also, again the CCS circuit plays a huge role in this- even if there is a mismatch in the tubes, you don't seem to get any extra noise.BTW, any tube amp with... | |
| Why not horns? One thing that Duke did not cover is the drivers in use in the horns. Many speakers have breakups which contribute to distortion; if a horn driver exhibits this the result can be really bad. I know of at least one driver that has no breakups in th... | |
| any audiophile guitarists out there? Kijanki, I used to play out with bass a lot. These days, I play out with keyboardshttp://www.myspace.com/thunderboltpagodaThe tracks on the myspace are from live shows a few years ago. | |
| Balanced vs Unbalanced? Herman, look at it this way: a differential amplifier does not care if it is getting a single-ended or balanced input signal. It will act exactly the same in either case. So if the input signal has two opposing inputs that have slightly different ... | |
| Does "perfect alignment of cart" eliminate 100% ? Some arms are more affected than others, yes. Mistracking in the inner grooves might also be caused by the mechanical resonance of the arm/cartridge being slightly too high.Electrical loading of the cartridge can help too.Some preamps will exhibit... | |
| Balanced vs Unbalanced? Rleff, it really depends on the speaker rather than the technology. Its the 'all else being equal' part that prevents an answer beyond that. Either one can be awesome or suck really bad. | |
| 6922 6DJ8 or 12 AX7 tubes better for preamp? 6SL7s have similar gain to 12AX7s. IME they are often prone to microphonic issues and so have to be very carefully hand-picked. Of course in a LOMC phono section *all* tubes must be picked for low noise. It is this reason why truly quiet NOS tubes... | |
| 16-ohm driver question Yes. If your amp was set up for 16 ohms, the output transformer would have less distortion. That translates to greater transparency and smoother sound. You will also get a little more power. | |
| Why not horns? Unsound, I appreciate your last comment. It is where I was for many years, and to this day (and I expect for years to come) I still run into horn designs that are guilty of everything you mention in your first paragraph. When horns suck, they real... | |
| any audiophile guitarists out there? I play a bass guitar- it looks like an acoustic guitar but has only 4 strings. I built up an little amplifier that is pretty fun to play.There's a photo of it at this thread on DIYAudio.com. | |
| Balanced vs Unbalanced? Herman, just for the record, I like SETs a lot myself and have built a number of type 45 and 2A3 based amps.But before we go into that, One unmentioned difficulty is that for everything to work as designed you have to have a circuit capable of pro... | |
| 6922 6DJ8 or 12 AX7 tubes better for preamp? The 12AX7 is great for noise and low distortion, but is bad at bandwidth, making it a poor choice if you want passive EQ. The 6922/6DJ8 has good bandwidth, but the design of the tube is not for audio: while very good linearity, the design is prone... |