georgehifi
Responses from georgehifi
| Class A amplifiers - which are considered the best Yes but they were only quite low in Class A For instance the massive KSA-250 with all it's heatsink could only do 28.5 watt Class A into 8ohms and then up to 250watts of Class B into 8 ohms. And these ran stinking hot.http://www.stereophile.com/co... | |
| Class A amplifiers - which are considered the best 03-02-12: :Manitunc. Those amps don't use as much power when idling and don't get quite as not. My Dussun V6i, Musical Fidelity M3, Nobis Convigore and Classe 100 all run that way and sound pretty good. Manitunc:If they don't run hot then they are... | |
| Class A amplifiers - which are considered the best If you like pure Class A solid state, these Mark Levinson ML2 monoblocks are it if you can find a pair, note the amount of heatsinks just for 25 watts of class A (no a/B) and they get HOT!!!. Goes to show that others are stretching a long bow when... | |
| Amp for lightspeed attenuator? = $1000 used Dddrrreee: Trouble is I think the 160 has a lot of gain, and a volume control that has to be bridged out so the Lightspeed can shine through, the whole reason is not to have contacts (volume pots)in the signal path. The 100 is better if you can ge... | |
| Amp for lightspeed attenuator? = $1000 used Dddrrreee: trouble is the xdac is a tube ouput stage buffer you will be back in the same boat trying to drive your 10k amp and ?k two times active subs from it. It needs to be a solid state buffer. with 100ohms or less output impedance.Cheers George | |
| Amp for lightspeed attenuator? = $1000 used Dddrrreee, good advice from Clio09 on the Music Reference RM-10 MkII a quite few Lightspeed Attenuator owners have had great success with this amp, saying it's a match made in heaven. As does the amps Sam Tellig from Stereophile, he uses the Light... | |
| Amp for lightspeed attenuator? = $1000 used "Dddrrreee As a complicating feature, I'm using Y connectors to split the lightspeed output signal so I can feed it to a velodyne SMS-1 bass management unit (which I use to drive two subs).Dddrrreee"You can get me on "georgehifi at optusnet dot co... | |
| Amp for lightspeed attenuator? = $1000 used Hi Dddrrree, your Lightspeed will work into the 10k input impedance of your present amp with no stress to any components. However it now becomes the source cdp/dac which has to be able to drive the combined impedance of the 10kohm of your amp and ... | |
| Lightspeed Attenuator - Best Preamp Ever? This is possible Paul, but thermal inter-channel drift is only prevalent in DIY Lightspeeds or Lightspeed clones. The production Lightspeed Attenuator that have been built by us, all have their quad matched NSL32SR2S led/ldr units packed together.... | |
| Lightspeed Attenuator - Best Preamp Ever? Marqmike: Yes you can do that, I have one customer in Hawaii that bought 2 units off me years ago, thinking he wanted the extra one for a friend. He thought he needed 2 for stereo then found out when he got them he only needed one. I said for him ... | |
| Lightspeed Attenuator - Best Preamp Ever? Clio09 I am curious how Jim White gets such a low output impedance from a zero feedback design.Clio09Could be that it has no "global" negative feedback, there are such things as "local" feedbacks, and even feedforward circuits. It all in the wordi... | |
| Lightspeed Attenuator - Best Preamp Ever? I believe I stand to be corrected, I see that it's the Atlas "monoblocks" that are 3.1v sensitivity, these are not suited for unity gain active or passives preamps, they will work but fine with maybe a source headroom disadvantage. However I now b... | |
| Lightspeed Attenuator - Best Preamp Ever? I can now see why you preferred the tube preamp that has gain Grannyring. As your Aesthetix Atlas power amp has well below the standard input sensitivity at 3.1v. The input impedance was fine at 470k or higher (as you measured) but most amps on th... | |
| Lightspeed Attenuator - Best Preamp Ever? Sorry, should of explained it better. If you have a stereo version it cannot be made into a dual mono easily, as the chassis parts are drilled/mounted slightly different and circuit boards are done/wired different to accommodate the dual setup. Ev... | |
| Lightspeed Attenuator - Best Preamp Ever? Hi Paul, the dual mono version is $35 more than the standard stereo version at $490 (which is not backwards compatible) and this includes worldwide shipping. Yes you can use the same wall wart, if you already have this then there will be a price a... |