Sonic Frontiers SFM-160 Classic tube mono's
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Condition | |
Payment methods | |
Ships from | Macedon, NY, 14502 |
Ships to | United States |
Package dimensions | ?" × ?" × ?" (65.0 lbs.) |
Shipping carrier | unspecified |
Shipping cost | Specified after purchase |
Original accessories | Box, Manual |
Average | Research Pricing |
Nice pair of classic Sonic Frontiers monoblocks. These are prototypes for the SFM 160s that were quite well regarded. The main difference between these and the commercial release was the position of the input tubes and the bias switch. I have had these many years, and they just were serviced, both power supplies were rebuilt (paid $900), and they are in great shape. They have Svetlana 6550Cs in them and Phillips 6DJ8 JAN USA input tubes. Also included are 7 Gold Lion Genalex reissue KT88s. These have quite a few hours on them, but still sound nice. Manual and Original (large) boxes, and the tube cages included. Non-smoking pet free environment. I will split the shipping cost, 2 boxes 65 lbs each.
CONSTRUCTION DETAILS
• Twin 6DJ8, differential cascode circuit for the input/driver stage with a regulated B+ supply
• All other critical power supplies regulated
• Regulated Screen and Bias supply
• Front panel bias meter with externally mounted adjustment controls
• Brushed Stainless Steel (non-magnetic) chassis
• State-of-the-Art passive parts quality : MIT MultiCap, Holco, Cardas (custom cable and RCA jacks), Edison-Price, etc...
• Conservative, high capacity power supply (over350 joules/amp), with a low resistance filter choke and polypropylene shunt capacitors
• Custom-wound, output transformer with a core of grain oriented silicon steel (9th generation proprietary design)
• Low feedback design : only 7db (on the 2 Ohm tap)
18”w x 16”d x 8”h, 55lbs each
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