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ARC Hybrid FET/Tube audio circuit

Hopefully easy questions for you guys to answer, so here it goes.
I was recently told on the hybrid ARC preamps, only the phono section plays through the tube.
Ive also noticed a lot of the ARC preamps in my price range only have 1 Main RCA Output or a combination of RCA jacks and XLR.
So, questions are,
1.On ARC Hybrid do all the inputs play through the tube section or only the phono?
2. Can additional RCA outputs be added for a reasonable cost?
3. Can the combination of RCA and XLR be used concurrently, say the XLR to the main amp and the RCA to powered sub?
Thanks in advance for your input.
ltngstrucktwice
ltngstrucktwice OP
13 posts
 
The SP14 has only one tube, so I will assume then that only the phono section has a tube, but what about the SP9?
It only has two tubes.
Are both tubes in the phono section or is one tube for the phono and the second tube for the other inputs?
Thanks again.
mofimadness's avatar
mofimadness
4,977 posts
 
1. The SP9 and SP14 use the tube(s) for ONLY the phono stage.

2. It would be cheaper to use a RCA "Y" adapter.

3. Yes, that's the way I ran mine.
ltngstrucktwice OP
13 posts
 
Thank you again--this clears things up for my next purchase.
hifigeek1
770 posts
 
The above info is incorrect. The SP9 uses one tube in the phono stage and one tube in the high level stage. The SP14 utilizes one tube in the phono stage. The high level stage is solid state. There are better ARC preamps out there. They had issues with crosstalk that were improved in the MKII and MKIII versions.
bifwynne
2,206 posts
 
Ltngstrucktwice, just an fyi -- Hifigeek (aka Gary) is an authorized ARC service tech. You can rely on whatever he says.
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