atmasphere
Responses from atmasphere
| AR SP8 mk2 high output volume Good to know the A30 volume pot does not degrade the signal when set lower than full. I learned something. @audite84 The volume control is a 100K device. Combined with the input capacitance of the voltage amplifier tubes (which are essentially 6S... | |
| Line Stage Preamplifiers AX vs AU ^^ Yes- once you hear what they do its hard to go back to miniature tubes. | |
| What tube amp for Harbeth 40.1 No tube amp is likely to have the same dramatic bass punch as a powerful SS amp will. That's not why people buy tube amps.These days most solid state amps have output impedances so low that they overdamp the loudspeaker; no speaker made needs more... | |
| Cartridge Opinions - Sorry @mijostyn That 92 degree SRA thing is an approximation- an average. Any LP will actually be slightly different. Hard to know how much of it you'll actually hear. | |
| What tube amp for Harbeth 40.1 Tested on my Spatial Audio X5, the 8W one sounds more dynamic. Naturally- SETs make distortion in such a way that the distortion sounds like 'dynamics' to our ears. But I get your point- we have a lot of Harbeth owners as customers and somehow the... | |
| AR SP8 mk2 high output volume Quite often George and I disagree, but not here. @mrdecibel This 'integrated' amp does not employ a separate gain stage for a preamp section. Its a power amp circuit (a variant of the Williamson circuit) and simply has enough gain that any source... | |
| Line Stage Preamplifiers AX vs AU I was told that a 12BH7 can be used as a replacement for a 12AU7. Is that true? I've read notes about this compare, So I boughta bunch of 12BH7's, and none stood up to Tele 12AU7 as far as sonics, sound stage etc. As I mentioned above, there a... | |
| AR SP8 mk2 high output volume when I put the AR I notice a plus in terms of presence and forcefulness of the musicOK. I asked simply because with a high level signal like a CD player I would not have expected adding additional circuitry would have helped out. | |
| Line Stage Preamplifiers AX vs AU @yogiboy Yes, but you have to deal with the filament wiring, as the 12BH7 has a 12V center-tapped filament similar to a 12AU7. The 6CG7 can only be operated with 6.3V filament voltage. But the rest of the pin basing of the two tubes is the same, ... | |
| Is idler drive better than belt drive or direct drive? When he changes from TT to Tape, you don’t want him to go back to TT!@mglik If the LP was not a direct to disk then this is very easy to see. Of course a lot depends on what was used for playback of the LP in the example. | |
| Line Stage Preamplifiers AX vs AU @mozartfan You might want to hear what a 6SN7 does for a line stage. The 12AU7 is based on the 6SN7. Actually the 6CG7 is a 6SN7 in a miniature envelope, and the 12AU7 is the same geometry as the 6CG7 but with half the plate area. | |
| AR SP8 mk2 high output volume @tenoris Having looked at the schematic supplied by @imhififan I agree that essentially this amplifier is actually a power amplifier supplied with three inputs and a passive volume control. Since the control is 100K and given the characteristics o... | |
| AR SP8 mk2 high output volume I am using the Puresound A30 as a power amp because it is a possible option and so indicated by the manufacturer.I have just tried to use the Puresound attenuation as you have indicated and the result is quite satisfactory, with this volume at 1:... | |
| Is idler drive better than belt drive or direct drive? Better off with Reel to reel in the analog realm, going REAL low...Keeping in mind of course that the LP has superior LF response when compared to reel to reel. | |
| Two small RELs or One Larger Sub 1 sub good. 2 subs better. 3 better than that! 4 is best- this allows you to kill standing waves in the room. |