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Old 27th January 2015, 12:55 PM   #1
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After several days reading about Threshold, Pass Labs and ,, papa'' Nelson Pass I decide to buy a Threshold SA 3 amplifier and Threshold Fet Nine preamplifier, both in very good condition from first owner. My question is if 2000 is a fair price for both? In Europe!
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Old 27th January 2015, 03:39 PM   #2
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good amps

however , only rest of market offer can give you proper answer
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Old 27th January 2015, 07:22 PM   #3
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2k € sounds reasonable to me, if they are both in good condition.
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Old 26th July 2015, 04:41 PM   #4
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Hello again! I am using this Threshold's for more then half year and I am very happy with them, it sounds exactly as I want, warm and clean sound ,,holographic''. I order Audioquest Colorado interconnect and Audioquest NRG 10 power cord for them and I am very curious how the sound is changing!
In this week I got a problem, when I start my turntable (Denon DP-47F) I found the right channel almoust missing, sound was very low. I checked the output of turntable with another system and both channels are ok. The other inputs on Threshold FET nine preamplifier are normal, I use CD almost everyday, so was a surprise when I try to listen some LP and found this problem. If I can get a help with a drawing for FET NINE or some advices I will be grateful! I mention I have knowledge about electronics and I wont to fix it by myself.
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Old 26th July 2015, 05:19 PM   #5
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later tonight will post some info
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Old 26th July 2015, 07:21 PM   #6
Zen Mod is offline Zen Mod  Serbia
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it's here :

Treshold Treasure ?? while Papa was there : FET 9 | Zen Mod Blog
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Old 26th July 2015, 07:49 PM   #7
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Thank you! I will be back with any progress in my troubleshooting!
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Old Yesterday, 07:38 PM   #8
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Today I open my FET 9 and surprise... on phono stage it was some job before! On both channels I can see new bonding on transistors, capacitors and resistors like somebody try to fix a similar problem in a past. On right channel witch I have low signal Q5 and Q6 are BC 556 instead A42 ( related to the drawing that I got). Comparing with left channel some voltage are different start with first amplifier stage 2N5566 looks like is not working on the right range. I try to move the gain jumpers on MC or MM but are in correct position. I adjust the supply voltage to +/-18.3VDC ( lower value for negative voltage on potentiometer) If I can get some measuring points on FET 9 drawing will be a big help for troubleshooting!
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Old Yesterday, 08:12 PM   #9
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measure what you have , edit schematic to include measurement values and post here
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