Semi-matt black is the match to the originals. I don't think powder coating was done back when the 57's were made, so I don't know what the original finish is....
I am quite sure that the bronze finish was anodizing. Since you can also do a black anodize I would imagine that was used for the black. Due to the size I...
Certainly the bronze ones are anodized. But the coating on the black ones chips off. Since the cases for the amplifers were paint sprayed probably the black...
I have a high quality headphone amp that outputs .5 volt (500 mvolts)at max output at 32 Ohms. Is that enough to reasonably drive the 909 if I used it as a...
In general, the sensitivity of 775 mV means with such input the power amplifier can put out its full rated power, e.g. 140 Watts per channel for Quad 909. I...
Hi Jeroen, If I look at my own production date list, and convert it into a graph, there is almost a steady production during the years. As others mentioned on...
... Sorry to hijack this tread. I am using the CDP-2 into QC-24 with the 909 into Harbeth SHL-5 The volume is much too loud!! I can only at most turn the...
Hi, My supplied mains leads just have the original Bulgin connectors. The Earth is not connected. How are the Quads earthed? I have some mains leads where I...
Hallo, In the original 33/FM3/303 setup the 33 was earthed via the Bulgin connector, the FM3 and the 303 were connected to the 33 for their power-supply...
Quad IIs were earthed via the ground of the signal cable, back through to the pre-amp which was the earth connection to ground via the mains lead. I personally...
... I have a set of Quad II and no Quad 22 preamp. I have read about the 22 preamp and I am currently using a Technics SU-9200 solid state preamp hoping to one...
In the meantime enjoy a nice compact tranny pre from Cyrus. I hated my Quad 33 with a passion as it spoiled my enjoyment of my 303s. The Cyrus is small and...
Hi, I'm looking at 57's at the moment either a QUAD serviced pair or One thing Audio rebuilt ones. I'm confussed with the information about the treble panels....
Hello Stuart, Can i ask where you've seen those measurements? I have have ordered a couple and currently waiting for them. As far as i know QUAD's (German) own...
Don't worry about the measurements,listen to them, if you at all can.... Can't say much other than I completely rebuilt mine last year, using Wayne Piquet's...
Another source for a proper 6kV voltmeter: http://www.onethingaudio.net/OTA/9152-OTA-MAIN.htm I can't imagine it's a true electrostatic voltmeter but works on...
Perhaps the worst fear of a Quad Valve amp owner is that an original KT66 fails. Sadly, this has occurred to me. All nice GEC labels until last Thursday and...
Well... I don't care much about the original landscape - sorry - but I object to paying absurd money for a component that can be replaced with something...
I use GE (General Electric) 7581A which are supposed to be a KT66 equivalent, the valve carton says "7581A/KT66". I believe that they have the added avantage...
Hi John, Take a look at this webpage, there are Tung Sol KT66's on it. I like them very much and they look great and although it's a very famous name they ...
Re Tung-Sol. yes, someone has bought up various old brands: I cannot remember them all but I know that Tung-Sol and Mullard are included. Inevitably these...
just to let you know, I had a quad of the tung sol and they are not a real kt-66 they are a reworked 6L6 in a kt66 bottle. I am using a Quad of the Penta labs...
Sadly likely. Nice video about Mullard here - http://tinyurl.com/6kyh6f Fred. ... From: Paul Leclercq <VAR1016@...> Subject: [quadhifi] Re: KT66's To:...
Hi John Not I suspect the same John Pearson, Blues musician, and friend of mine? http://www.johnpearsonblues.com/ I agree with you that the aesthetics are...
FYI The definite answer from Ron Best - OTA is - the panel tested in the 'gang of five' was a early prototype only and not meant to be in a review-like test at...
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