georgehifi
Responses from georgehifi
| High resolution digital is dead. The best DAC's killed it. Apparently nearly 2500 requests for just 300 units...... Yes, it reached it's 300 orders very quick, a mate bought 3 of them, they were supposed to be delivered this month but got delayed a month. They look to be the bargain of the century.Chee... | |
| High resolution digital is dead. The best DAC's killed it. Now, we can finally do discrete dacs well enough and economically enough...so R2R comes back with a vengeance, in the high end area of digital. Same for the FPGA versions of similar design and thinking as discrete R2R dacs. And this Airist discre... | |
| Impedance match Matching concerns for all passive preamps is even more critical, if one doesn’t get at least a 1:6 ratio or higher from source to input and from output to amp then the wrong conclusions will be drawn about passives and the way they sound. If done ... | |
| DENAFRIPS DAC ---- Owner Impressions, Feedback, General Discussion, Questions and more.... Winner for: "High-value true-balanced pre /power combo" Very weak on giving any specs for the amp, even on the Denafrips website. Doesn’t instill much confidence .No input impedanceNo output impedance or damping factorNo 4ohm wattage ability or 2... | |
| Bench testing amp Most EE techs that build their own amp/s or even good ones that repair, should be able to help you out with most if not all bench test measurements.I don’t know where they are, but these guys have one of the most advanced detailed bench testing se... | |
| Looking for suggestions on best small footprint speaker under $4K miamiangler Looking for suggestions on best small footprint speaker under $4K They can be got for around that price now used, if your lucky and a good haggler, and that’s a pair of Sonus Faber Extrema’s old, (new will cost you a kidney), best s... | |
| Impedance match Yes when the output impedance to input impedance (O/I) ratio got down to 1:5 then a couple listeners said they could hear the dynamics may have been getting a little effected, but they said it was very small and don't think they could of blind A/... | |
| Audio Research Ref 5 SE ting noise you were spot on George! A slight flick pretty much reproduced the issue. You could try these also for the others, far cheaper than audiofool ones. Just don’t make them too tight, I have seen it kink the glass over time, and they must be the high... | |
| Impedance match noble100 I always read and was taught by members here that the guideline was at least 10x but will work well together with anything greater, too. Identical match is definitely not correct. With source to pre, pre to amp.Once you have a "Outp... | |
| Schiit Freya Thump or pop sound Turn on sequence = source, pre-amp, power amp. Turn off sequence = power amp, pre-amp, source. +1 This should be is written in stone in the audiophile bible Cheers George | |
| Audio Research Ref 5 SE ting noise That’s the sound of the sharp switch vibration being picked up by a tube that’s gone more microphonic than normal.Turn the volume control up to normal position (no music playing) and with your finger nail "gently" flick the top of each tube and yo... | |
| Which Class D Amplifier? PS Audio, Ghent, Nord, Merrill or other??? Just get the GaN Development board or eGaNAMP 2.1 Evaluation Kit Stereo Evaluation board already made up, with everything inputs outputs, give it +/- 32v power and put it in a box. I believe Digikey has them, and many others.https://epc-co.com/epc... | |
| Which Class D Amplifier? PS Audio, Ghent, Nord, Merrill or other??? Here is the PDF to the eGaNAMP2016 GaN amp.Steve Colino said if one wants even better sound from it, you can add a heatsink to those GaN fets and take the switching frequency up to 1.536mhz.https://epc-co.com/epc/Portals/0/epc/documents/thirdpa... | |
| Tube pre for class d recommendations ghosthouse3 The Freya is very flexible offering singled ended and balanced inputs and outputs as well as pure passive, JFET buffered, and tube gain output modes. It’s very transparent and readily shows differences in tubes and interconnects. +1 ... | |
| Which Class D Amplifier? PS Audio, Ghent, Nord, Merrill or other??? And yes, wide spread availability of the GaN-FET’s will be needed to drive costs down. Yes correct, as I said. (I’m hearing an echo??) But GaN-FET modules designed for Microwave and RF applications will not benefit HEA class D applications. Just ... |