almarg

Responses from almarg

Cary SLI-80 with one blown rectifier tube, BUT STILL WORKS just fine. How?
Gs5556, I’m looking at this photo of the interior of the amp. I assume that the thick yellow wires from the power transformer carry the filament voltage to the rectifiers, and they are pretty clearly connected in parallel to both tubes. And one of... 
Hum problem
Hi Michael,My 70/70 emits a slight mechanical buzz for a few seconds before the B+ relay clicks on, which sounds like what you are referring to as the "first hum (maybe more of a buzz)." It disappears completely when the relay clicks on, and I sus... 
Cary SLI-80 with one blown rectifier tube, BUT STILL WORKS just fine. How?
Thanks, guys. The only explanation I can think of is that each tube is not in fact dedicated to just one channel, but instead the outputs of the two are paralleled. The purpose of doing that may be to reduce the sag in the B+ voltage applied to th... 
Linestage search
Rafael, I have no particular knowledge of the Neo-Classic 300B line stage you asked about.  But after looking at the info provided for it at the Manley site I don't see any technical issues that would arise pairing it with your 509s.A point to be ... 
Linestage search
Mattmiller 10-29-2017Hello people you are confusing the MANLEY CHINOOK PHONO pre amp with the Manly labs Jumbo Shrimp line stage (which has a big volume knob on it)! Matt, what is confused are the specifications in the description of the Jumbo ... 
Linestage search
George, I'm pretty certain that the 45 db and 60 db gain specs stated in the website description of the Jumbo Shrimp are an error.  They apparently apply to a phono input, which the Jumbo Shrimp doesn't even have.  The manual indicates a very reas... 
Alta Audio speakers--anyone heard them?
The last few posts in this thread will probably be of interest.  Especially the following comment by member Schubert, although it pertains to one of Alta's smaller models:Schubert 6-7-2017 I heard the Alta 2-ways(4K) in Mpls. dealer recently , a m... 
Hum problem
Hi Michael,Have you tried changing the 6SN7s? See this thread from 2012, in which you participated. It seems that the VAC Renaissance amps can hum if heater-to-cathode leakage is excessive in the 6SN7s.Also, I would suspect that you have two probl... 
Great music few are aware of. Any genre.
bdp24 10-26-2017...The Rock ’n’ Roll Trio (Johnny Burnette and his brother Dorsey, along with Telecaster guitarist Paul Burlinson, a favorite of Jeff Beck). My wife and I recently enjoyed hearing "The Train Kept a-Rollin" on SiriusXM while we were... 
Directionality of wire
Geoff is actually a magnanimous and beneficent soul. Not infrequently he suggests tweaks that would cost the user nothing, and that provide him with no monetary return. An example is the following excerpt from his post dated 9-7-2012 in this threa... 
On Step Ups and the Importance of Managing Gain
Raul & Michael (Swampwalker), you’re both right. Regarding the multiplication effect Michael mentioned, the transformer will of course step down the resistive component of the input impedance of the phono stage as it is seen by the cartridge, ... 
Cary SLP-05 with Pass Labs X-250
Hi John (Roxy54),No, I don't think there would have been an impedance compatibility issue using the Morrison Elad with the X250.5, or with most other power amps.  See the info provided in the PM I sent to you on 3/3/2017.Best regards,-- Al 
On Step Ups and the Importance of Managing Gain
Assuming I’m getting the same voltage level output from the preamp with or without the step up why would the performance with the step up be so different? Is it inherent to the step up or is it also a problem of trying to amplify too small a signa... 
Cary SLP-05 with Pass Labs X-250
George, per Stereophile’s measurements the 400 ohm spec is not accurate: The SLP 05’s output impedance is specified as a usefully low 400 ohms. However, I got significantly higher values for the unbalanced output of 1500–1600 ohms in the midrange ... 
On Step Ups and the Importance of Managing Gain
Interesting post; thanks! And congratulations on the improvement you’ve realized to what was certainly an already exceptional system.My feeling is that the root cause of the issue in this case may very well have been ARC’s choices of the gains pro...