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Threshold T-200. Help me choose a preamplifier

Good day, Colleagues!
Not so long ago, at an auction in Japan, I accidentally won the Threshold T-200 amplifier. I really wanted this brand, but I was looking for the T-800D model. But it turned out to buy this amplifier ... And now I am very tormented with the choice.
I spent two days on the internet looking for balanced amplifiers. Here is a list, is there anything on this list worth seeing?
Pass Labs X1 - 
This preamplifier is sold in Russia at a very good price, it seems to me. 1800 dollars. But I do not know his condition. The photographs show that the cable that connects the power supply and the preamplifier itself is frayed. And the power supply is not complete, but a small black box.
Pass Labs X2.5 - I found this preamp for 2000 euros in Croatia, but shipping will cost around 500 euros, so it is already very expensive for me. 
Black Ice F-360 - A very interesting preamplifier. The ad suggests that this preamp has very high detail and can expand the scene. :) But I don't believe in advertisements.
Leema Acoustics Pyxis ll -  This amplifier is quite expensive, I found it in my country for $ 2500 and this is a showcase sample. It has an impressive range of features, there is a phono stage, which I also need, and balanced inputs and outputs.
Electrocompaniet ec 4.7
Electrocompaniet EC 4.8
Krell KSL-2
Audia Flight Pre
Quad Artera Pre
Rotel RC-5000
Audio research LS-15
audio research LS-2B
Spectron Model 10
Audio research LS 17
BAT VK-30
McIntosh C2200 - But this is already very dear to me.

I really look forward to your help and advice in choosing.

vetusto
vetusto OP
46 posts
 

Friends, I am facing the following problem: As you know, I bought one balanced Jaff Rowland Capri preamplifier, the second preamplifier is a homemade Japanese tube preamplifier. The switching is as follows: from the Teac NT-505 via an XLR cable to the Jeff Rowland preamp, from the preamp via an XLR cable to the Threshold Amplifier. Further. From NT-505 via RCA cable to homemade tube preamp, from tube preamp via RCA cable to Threshold Amplifier. Checking connections: turned on the XLR on the NT-505, on the Threshold amplifier, the switches are in the XLR position. Everything plays great. I turned on RCA on the NT-505, on the Threshold amplifier I switched the toggle switches to the RCA position. Does not play.

At first I thought the tube amp was the problem. He’s new. I did not disassemble it, perhaps something was messed up with the switching. 
Then I did the following: I turned on the NT-505 so that the sound went through the XLR output, and on the Threshold amplifier I turned on the toggle switches in the RCA position. And you will not believe, the sound appeared .... I do not understand what is happening. Amplifier broken?
It turns out like this: the signal goes from the DAC via an XLR cable to the Jeff Rowland preamplifier, from the preamp via an XLR cable to the Threshold amplifier, but at the same time, the toggle switches on the Threshold amplifier are switched to the RCA position, i.e. signal reception should be RCA, but the sound still goes. I don’t understand what’s going on and how do I get the sound to only go over the RCA cable through the tube amp....

rocray's avatar
rocray
1,448 posts
 

Does your Threshold amp require xlr shorting pins when running the amp single ended? 

vetusto OP
46 posts
 
I don’t quite understand your question... Both XLR and RCA cables are now plugged into the Threshold amplifier. I want to make it so that you can listen to both XLR and RCA by switching the toggle switches on the amplifier. From different preamplifiers. 
Now this is a one-time connection:
NT-505 RCA → Tube Preamplifier → Threshold Amplifier (RCA input)
NT-505 XLR → Balanced Preamp Jeff Rowland → Threshold Amp (XLR input)
vetusto OP
46 posts
 
NT-505 RCA → Tube preamp → Threshold amp (RCA input) - no sound
NT-505 XLR → Jeff Rowland balanced preamp → Threshold amp (XLR input) - sound
NT-505 XLR → Jeff Rowland balanced preamp → Threshold amplifier (RCA input) - there is sound. WHY THERE IS SOUND? :)))
big_greg
6,674 posts
 

The NT-505 requires that you define the output - XLR (2 options depending on pins) or RCA.  Did you change that setting on the NT-505 when you connected to RCA?

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