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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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In Reply to: Ok, you phono stage experts, explain this... ('cause I'm totally confused now.) posted by tketcham on December 15, 2005 at 19:38:10:
can confirm what you say.Basically the chromed metal box inside holds the initial stages of amplification. This is pure SS, op-amps based.
After that the signal goes to the tube stage. Hence the JD9 is a 'hybrid' phono stage, SS and tube, *not* pure tube.
From there, via a single path (as you have discovered), the signal goes to the outputs.
The HI outputs are connected directly to the tube output stage, the LO outputs go through what appears to be a passive network. It is my suspicion that this passive network is actually nothing but attenuation to lower the output level, i.e. to allow get the level down if using a MM or high-to-medium output (H-M) MC cartridge.
Hence, the JD9 would appear to be primarily a low output MC phono stage, with passive attenuation on the LO outputs to allow use with MM (or H-M MC).
The issue here is really the crappy manual. There would be no need for speculation if they simpply did a better job on the manual.
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Anyway despite the confusion the JD9 is an outstanding phono stage IMHO. I use mine with a Denon DL-103 and am absolutely floored by the performance. The settings I use are: HI outputs, lowest gain setting, and 100 ohm loading. Teamed with a moderate gain line stage (10-12db) the next higher (JD9) output setting might be best; gain setting should be set by ear, forget the numbers.
IMHO the JD9 just as substaintial a bargain that the Denon DL-103 itself. The combination is very likely unbeatable at anywhere near the price.
I use the stock tubes. The only alternatives I've tried are the Sovtek LPS tubes. These make the JD9 obviously less noisy but I prefer the sound with the stock tubes ... I'm more interested in the music the system produces and a little extra noise for positive gains in musicality is a no brainer for me ... I'm that way.
The JD9 benefits from sitting on 'squishies'; I use the $4.00 each FocalPods from Parts Connection, I suspect VibraPods would be just as effective.
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The Jolida JD-100 CD Player is just as remarkable as the JD9. I've had at least one CD player that cost twice as much (Arcam CD92) but have not enjoyed listening to CDs until I got the JD-100 ... it is *the* vinyl lover's CDP. With the JD9 and JD-100 serving front end duty my system is so scary good I am in a permanent state of awe. If I pretended to be any less impressed I'd be lying through my teeth. Nuff said!
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Follow Ups
- I've looked inside my own JD9 and - bjh 20:59:58 12/15/05 (1)
- Thank you. It's making sense now. And for my first real financial commitment to vinyl... - tketcham 21:33:44 12/15/05 (0)
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