atmasphere
Responses from atmasphere
| DeVore O/93 or PureAudioProject Duet15 for a First Watt SIT-3? @ulul 18 Watts (or 30 into 4 Ohms) isn't a great deal of power. From the looks of the distortion curve vs power, if you want the most out of this amp it really should be loafing. I think it will sound fine with any of the speakers you mention, but... | |
| Spatial Audio Raven Preamp Yes, the requirements for the input/buffer stage are actually quite modest, not even a headphone amp, really. But the current fad for floating 12 or 15V supplies from a switching wall wart limits the output swing and current available. Barely e... | |
| Looking for phono preamp advice in the $1000 - $1600 range @bimmerlover Your power amp is balanced. Your existing line stage can't take advantage of everything the amp (or interconnect cables) have to offer as a result. There are balanced tube preamps that also have a balanced phono section that can tick... | |
| Reasonably priced preamplifier @gopaljeen If you were thinking of something capable of balanced operation, keep in mind that not all 'high end audio' preamps that are balanced actually support the balanced line standard (AKA AES48). It is that standard that allows the interconn... | |
| Suggestions for phono preamp for LOMC's Do you equate the resonance frequency generated by the inductance of the cartridge being in parallel with the capacitance at the inputs with RFI? @lewm Yes, since it is commonly at MHz frequencies. Hard to put it as anything else! | |
| Spatial Audio Raven Preamp True. I surmise leaving the input section of the Bruno Putzey modules as they are was a deliberate design decision on Bruno’s part. The modules are an almost-complete power amp, but are incompatible with existing RCA and XLR interfaces, due to th... | |
| Single ended = large images? Yes sns I think the "oversized" feeling and the distance perspective are one and the same. @montaldo The reason this happens has to do with the phase of the 3rd harmonic. It can cause certain sounds to be more forward because it makes them a li... | |
| Can anyone tell me when XLR connections were first used on stereo equipment. (what years)? FWIW, one of the founders of BAT was a customer of ours prior to the founding of BAT. | |
| Spatial Audio Raven Preamp The Bruno Putzey Class D modules are designed so they need they need about 10V drive and an input impedance of 6300 ohms Actually if you want to be safe you should expect to drive 2000 Ohms rather than 6K or higher. Typically an input buffer wi... | |
| ???What's The LEAST Expensive "End Game"Amplifier You've Ever Heard??? The very best sound quality is from single-ended amps. @imjerrys They don't really make proper bass- most SETs that make 7 Watts or more can't make full power at 20Hz. The output transformer simply lacks the inductance to allow it. If it did ha... | |
| Can anyone tell me when XLR connections were first used on stereo equipment. (what years)? @mewsickbuff Atma-Sphere was the first home stereo manufacturer to regularly offer balanced line products. The MA-1 amplifier was first in 1987 and the MP-1 preamp followed in 1989. Both not only had balanced inputs and outputs (including LOMC pho... | |
| Suggestions for phono preamp for LOMC's @bobheinatz Here's a tip for buyers of phono sections that can work with LOMC cartridges. If it has provisions for a loading resistor for the cartridge, its a pretty good bet the designer didn't think thru the implications of an inductive sourc... | |
| Recommendations for a jazz record which demonstrates vinyl superiority over digital I have an entry-level Krell KSB-7B pre-amplifier with external power supply so I doubt that RFI is a problem there, but who knows? @richardbrand The RFI is injected directly into the phono input by the tonearm cable. If the preamp has provision... | |
| Pre amp recommendations @dahodevil Since your amps have balanced inputs, for best results a balanced preamp should be used too. The advantage of balanced line is the cables can be completely neutral (and thus musical in every way) but to do that the preamp has to support... | |
| The Shure V15 V with a Jico SAS/B stylus VS The Soundsmith Hyperion MR and Lyra Atlas SL I am impressed that your subwoofers can do zero Hz. @lewm Eminent Technology's sub can do DC if the blades are locked In fact a fan is what gave him the idea. |