atmasphere
Responses from atmasphere
| Recommendations on stuff to look at for upgrading a 300B SET amp @jbhillerWhat you are up against is that to make more power, SETs have to sacrifice bandwidth. 300b amps are at about the limit of what can be considered 'hifi'; even then its very difficult to get them to go from 20Hz to 20KHz and most of them do... | |
| Looking for the best Preamp with a phono circuit built in @mdrummer01Do you need balanced or single-ended? All phono cartridges are balanced sources for what its worth. | |
| ECC31 tubes in 6SN7 slots of Line Magnetic amp. Possible? That might damage something! The ECC31 has its cathodes tied to a common connection- the 6SN7 does not. They are **not** inter-changeable! | |
| Digital Microscope advice SRA An additional bit that can mess with things is that the cutter head's rake angle isn't a certainty! A cutter stylus lasts about 10 hours of cutting. It has to be heated for best noise floor; as it wears it gets noisier and the temperature has to b... | |
| Tube Sound Question Since the tube sound is mostly attributed to its high output impedance (which is why they are described as warm, as most speakers are ported). So, a tube amp is magnitudes more influential in coloration than a tube preamp.This statement is inco... | |
| Sell your $$$ cables and conditioners... affordable LITHIUM is here! "Thanks for reaching out to Goal Zero! In the specs for the inverter, it is listed as a max of 5% Total Harmonic Distortion."So- about 10x the distortion of an Elgar power conditioner. | |
| Ancient Ohms ^^ +1And you won't be able to damage an amplifier with them. | |
| Inverted Phase Preamplifiers with REL Subwoofers The absolute phase or polarity of the preamp has nothing to do with how the sub is operating- the latter has everything to do with your main amplifier. | |
| Doug Schroeder Method, Double ic I'm wondering what you mean. Are you simply suggesting use of Y cables for XLR applications versus splitters? That has already been done, and I have reported on it.I was thinking of dual input connections... Another thing to try would be if runn... | |
| When do you turn off the tubes? Just wondering about the 1-2 hour breaks.We have a Standby feature on our amps. It keeps them lit but no B+ on the power tubes (the driver however still has B+ as the 6SN7s have a much longer life). This helps the amp keep its warmed up quality, b... | |
| Doug Schroeder Method, Double ic OK- I tried this in three applications.The phono cartridge is a balanced source and low impedance. I used the Atma-Sphere MP-1, which supports AES48. At the input of the preamp, this isn't a big deal but at the output it is. More of that coming up... | |
| Which Class D Amplifier? PS Audio, Ghent, Nord, Merrill or other??? The EPC eGaN FETs switch 10x faster than silicon MOSFETs and have zero stored charge. I'm guessing that probably improves sound quality when used in a class D amp.While they are faster its incorrect to characterize them as having 'zero stored ... | |
| Too good to be true? ^^ That will depend on the room size and how lively it is- as far as will the amp drive the MLs, yes it will. In a larger room you may run out of gas; in a smaller and some medium sized rooms it will be just fine. The genre of music won't make any... | |
| Shorter speaker runs or shorter IC Runs...Which is the better set up and why? Ralph, can you explain why on Earth some designers and makers of consumer electronics go to the trouble and expensive of providing balanced connections (if not circuits), and then don't do it "correctly", to conform to the AES standard? To do t... | |
| This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers. Yikes!! Sorry to hear about that!Did you ever see a case where the tweeter was damaged by a shorted output transistor? I only saw it happen if the amplifier was overloaded (in which case the woofer often survived). |