atmasphere
Responses from atmasphere
| Why are low impedance speakers harder to drive than high impedance speakers When this is true, the 4 Ohm is usually 3 dB more sensitive. The low impedance causes extra current flow which provides for increased force against the same magnet.This seems to require clarification!Given two drivers of the same **efficiency** (1... | |
| Need help with DIN to RCA phono cable troubleshooting I don’t think this is optimal in a signal ended system. The fifth pin grounds the arm. You run the risk that if someone connects the shield to the RCA at the preamp end then an earth loop is created. You are correct, however the comment was made... | |
| Why are low impedance speakers harder to drive than high impedance speakers you took my statement out of context. Here is what I actually said:Yes- it was not to contradict you, but to use the phrase as a talking point, as I see that approach recommended a lot. Then later people sell off the gear in search of that holy g... | |
| Why are low impedance speakers harder to drive than high impedance speakers So why would a designer go the other direction?Lower impedances have appeared as a means to get more power out of solid state designs. But this is very different from getting lower distortion! So a lot depends on what your goals are!I think the tr... | |
| Need help with DIN to RCA phono cable troubleshooting Should the ground wire from pin 5 in the Din5 connectorbe split in two such that each can be soldered to the pin 1 on theXLR connectors? Or should only the (floating) shield of both channels be connected to the pin 1 on the XLR connectors? The gro... | |
| Class D Technology What they call "Analog Cell" is just class A Mosfet input stage very common in many class A or AB amps. It sounds like a lot of hot air (for class D).Some sort of input buffer is almost always required to eliminate input offsets in the comparat... | |
| Power supply hum transmitted to loudspeakers have had their power supply upgraded, but still has a small amount of buzz at the loudspeakers, not audible while playing music beautifully.(with and without shorting plugs). I've learned to ignore it and realize the amplifier was meant to play... | |
| How many records can a stamper press? Stampers go about 800-1200 copies. This is defined by the pressing plant more than it is the label. | |
| Headphone question Suffice it to say that EVERY recording you own has been run through an equalizer in the mastering process. This statement is false. Many recordings are mastered without any EQ (other than RIAA curves)! If the recording engineer knows what they a... | |
| Solid State Amps for Quad ESL 57? @Atmasphere, (other amp manufacturers) if you are still following this thread - does such a SS Amp beast exist, and or can a SS amp be built that is like the Quad II, ......I mean if someone really wanted to ? I believe.... and its theory only, be... | |
| Class D Technology Can someone tell me what can be observed when measuring a class a/b amp that indicates its inferiority to pure class A?In a class A amp as mentioned the output devices never turn off. Unless its a single-ended amp that makes little power, one adva... | |
| Matching an Amplifier to my Proac Response 2.5s + CJ PV5 Unless you are in a really small room 50-60 watts is a good power level. | |
| Class D Technology I am not sure where obsession with the switching frequency comes from. It is inaudibleThis statement needs clarification! It is very easy to demonstrate that switching frequency is audible. Once it gets above a certain minimum it becomes progress... | |
| Matching an Amplifier to my Proac Response 2.5s + CJ PV5 The RM-9 might work nicely. The speaker is very tube-friendly FWIW. Back when it was in production we had lots of customers using them with our M-60s. | |
| Experimenting with reversing polarity to speakers 50% of all recordings are out of phase. So you might have to be swapping the cables quite a lot to sort that one out! We provided an absolute phase switch on our preamps to deal with that issue. Most of the time you can't hear a difference- but it... |