pdspiegel
Responses from pdspiegel
| Can 6AJ8's be safely substituted for 6KA8's? Agree with @jea48. They are a little similar combining a triode and multi-grid unit with a shared cathode, but they are not pin-compatible. https://tdsl.duncanamps.com/show.php?des=6KA8 doesn’t show a substitute for the 6KA8. I’m not familiar w... | |
| 2a3 Tubes - Favorites? @reimarc a 300B filament is 5v/1.2a while a 45 is 2.5v/1.5a. A 2A3 is the same filament voltage as a 45 (2.5v) but requires more current (2.5a). So, a 2A3 may work on the “45” setting but only if the filament supply can provide the additional cu... | |
| Rick Derringer R.I.P Yes, Rick Derringer was a great studio guitarist and 70’s rocker, but don’t neglect that he was also in the McCoys, creators of the garage rock classic and forever party song, “Hang On Sloopy”! | |
| How are you playing your precious MONO Vinyl? lewm, “early” LP’s in my collection with non-RIAA EQs are from 1948-mid 50’s. Sometimes the jacket notes will say “AES playback curve recommended” or similar. However, often there are no notes. There are a number of resources online to help ide... | |
| How are you playing your precious MONO Vinyl? The purpose of a preamp such as the Aurorasound EQ-100 is to playback discs using a pre-emphasis equalization other than the RIAA standard adopted around 1960 or so. If your collection includes original discs from early in the micro-groove LP and... | |
| Sources for 6BY5 rectifier tubes I see 6BY5 available from the following sellers: Brent Jessee Antique Electronic Supply | |
| Picking a power amp Amps and speakers need to work together. The comments in this thread recommend choosing speakers first and then amps to drive them, which makes sense. However, it’s your system and your hobby so do what you like! :) The tubed Mac amps you ment... | |
| And the biggest influence on sound quality is... This is a fun thought experiment. If your source is LP, then I would argue that your playback system (turntable, arm, cartridge, setup) is most important. Imagine you had near mint pressing of Kind of Blue or Aja, and you played it on a $35 Cros... | |
| One of my favorite bands, one that many have never heard. NRBQ is one the great rock n’ roll bands and I think that the best edition was with Al Anderson on guitar and Tom Ardolino on bass. Along with Joey Spampinato and Terry Adams these monster musicians created killer grooves with a reckless energy ... | |
| Big Jazz Band Music with Great Sound Strayhorn’s arrangement of Tchaikovsky’s Nutcracker Suite recorded by the Ellington band is a great piece of music and a stunning recording. It sounds good in any format but a friend has on reel-to-reel and I was amazed. | |
| The best opening act you've ever seen & heard? Dwight Yoakam and band opening for Nick Lowe at the Palace in Hollywood c. 1983. | |
| Tubes and Subwoofers I also use a REL sub (T/7x) to supplement stand mount speakers driven by a tube amp. Sub speaker level inputs are high impedance and won’t load a tube amp output. | |
| Does anyone listen to the radio anymore? I love radio, although I often listen while doing something else like driving, working on a project in my shop, or other chores. We have many good options here in SoCal with two classical stations, one jazz, NPR, and Pacifica on standard FM. I... | |
| Power supply for ethernet switch? @kingbr, I also have an inexpensive TP Link switch in my network attached to my network player/dac. Interested by testimonies of better audio performance from improved network components, I made a couple of relatively inexpensive changes as a tes... | |
| Preamp issue 2Tuby, you did the test right. There is no DC offset voltage on the Denafrips outputs so that is NOT the source of the problem. At least that is ruled out. |