InsiderQuicksilver V4 Balanced
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$4,500.00 USD
| Condition | |
| Payment methods | Contact seller |
Contact seller after sale to pay via Certified check, Personal check or Wire Transfer | |
| Ships from | Dallas, TX, 75231 |
| Ships to | United States |
| Package dimensions | unspecified |
| Voltage | unspecified |
| Shipping carriers | UPS or FedEx |
| Shipping cost | Specified after purchase |
| Original accessories | Box, Manual |
 Average | Research Pricing |
Will accept trade in Denafrips series 12 or 15 DAC. Also and special pricing for local pick up at my location in Dallas TX.
These Quicksilver V4 Balanced Monoblock Tube Amps plus Tube Collection at $4,500, or best offer. Tubes are worth several hundred dollars alone spare set of coupling caps are hundreds more.
Second-generation V4s with upgraded transformers (indicated by blue LEDs) and the optional balanced XLR inputs. They support a wide range of output tubes, including EL34, 6550, KT88, KT120, and KT150, producing up to 120W per channel. Both amps are rated 120VAC input.
Recent service includes:
All electrolytic capacitors replaced with high-quality Vishay and Kemet parts
Meters calibrated and dirty bias switches replaced.
Phase splitter DC balance adjusted
Included tubes:
(8) Gold Lion Reissue KT-88s – 174 hours, plus (4) used spares.
(8) Original Quicksilver Chinese KT-88s – low hours, plus (1) new spare
(8) Electro-Harmonix EL34s – 110 hours
(8) Electro-Harmonix EL34s – 996 hours
(2) Sylvania 12FQ7
(4) RCA 12FQ7
(2) Sylvania 12BH7
(2) RCA 12BH7
Questions for the seller |
|---|
Are the spare set of coupling caps new and unused? Yes, new caps unused and supposedly premium military grade. |
The recent service you refer to...was is done by Quicksilver?
What year were these amps originally put in service? NOTE THIS REPLY WAS COPIED AND PASTED INTO EMAIL FROM PREVIOUS OWNER. Hope THiS HELPS:
mikebrijus sent a message about an order
Quicksilver V4 Balanced Monoblock Tube Amplifiers + Tub...
From: mikebrijus (Mike Floersch)
May 20, 2025 1:28 PM
I never tried the KT-150's but I did use one set of the KT-120's when they first came out. I preferred the reissue Gold Lion KT'88's over the TungSol KT-88's and KT'120's. I have read in several discussions that the 150's do sound good in these amps though. I used the original KT-88's for a while, then several sets of EL-34's, then the Gold Lion KT-88's exclusively after that. They take a while to break in when new and at 160 hours are getting close. For me the different tubes were highly speaker and manufacturer dependent.
Also in the tube box you will find a set of Teflon and foil coupling caps I had custom made from Arizona Capacitor and have no need for them. I worked in the electronics industry for 40 years and had relationships with manufacturers that would do that for me. Unfortunately I no longer have the data sheet but they are the correct capacitance, tolerance and higher voltage rating. They provide a bit more midrange bloom. Also a few extra bias push switches as they tend to get dirty, and a couple extra 100 Ohm DC balance trim pots as I found one broke once and ordered three since they were inexpensive. I left a note as to which 12FQ7 tubes go with which serial number as the DC balance is set for those. I don't think it is necessary for you to make this adjustment if the tubes have matched sections which yours do. As an engineer I'm a stickler for accuracy though... |
Interesting, but it doesn't discuss who did the service and Repairs. Do you know? I assume quicksilver would have records if they did them. Sorry I don't know |
Did the previous owner replace the parts himself? I do not know. |
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