The owner's manual can still be downloaded off Anthem's website : here. Power output: 80 watts per channel (stereo) Frequency response: 6Hz to 50kHz. readings : " 40" for the pre-installed tubes (and longest lifetime) and " 50" if swapping the latter for 6550, KT88, KT90 or KT90a tubes. The back-plate has a meter and two pots for checking/biasing the tubes with two max. One input source can be privileged by being plugged into Direct terminals : this Direct input bypasses all front-panel functions and selectors except muting and volume. The feedback loop is kept at a low 11 dB level and screen and bias supplies are regulated as well, of course, naturally. The preamp part is based on regulated 12AU7A and 12AT7A triodes direct coupled to a differential phase splitter/driver stage output tubes are two mil-spec and matched E元4L. The three transformers are grain-oriented silicon steel home-made designs, with the output two having a fixed 6 Ohm tap polypropylene shunt caps, right-angle and "en l'air" wiring finish the seriously hand-made picture. Oh yeah.I've been told that sonic frontiers has or is going out of business so parts might be hard to find down the road. The absence of a phono input made for most of the savings but the rest was built like its separates and with the same kind of "ultra" parts : Tiffany i/o plugs, Edison-Price speaker terminals, Cardas wiring, ALPS pots, Holco, Wima, Vishay, Solen caps & resistors, plus Golden Aero tubes. Sonic Frontiers SFS-80 Amplifiers DESCRIPTION Tube Stereo Amplifier 80 watts per channel Showing 1-2 of 2 dennis Audio Enthusiast Strength: Amazing sound. About 60 hours on it and it keeps getting better.From a time when "affordable tube amp" didn't necessarily outline a chinese provenance, the SFC-1 was Sonic Frontiers' first entry-level line preamplifier, designed like all of SF's production by Joe Curcio. *Stupendous array of NOS signal valves (truly! Email for more info if really needing to know) *4 matched pairs of Russian 6P14P-EV output valves *All resistors replaced with a mix of Vishay Z-Foil naked, Kiwane, Amtrans *Phono Stage rebuilt with Vishay Z-Foil naked resistors and Mundorf ZN caps *Discreet component rebuilt bridge rectifiers *Coupling caps and the awesome V-Cap copper film teflonsĪll diodes upgraded to SF4007's and Schottky *Every electrolytic capacitor upgraded and replaced with Nichicon varietiesĬaps in preamp section now Clarit圜ap MR and RelCap TFT Teflon Tinfoil (these were the best caps on the planet till V-Cap came along but some still prefer the TFT's, then Deuland Cast but never heard them) *Input and output silver wired (input is solid cast PTFE wrapped) Also a lot of feature like standy mode to extend tube life and. *CD and MM input jacks WBT pure Nextgen MS silver It pushes 110 w tube power per channel, enough for most of the speaker you care to match with it. In basic form it is already sweet with reviews online to read - just google it.īased on EL84 tubes, it is rated at 25w per channel at 8 ohm. This amp has the optional MM phonostage board fitted into one of Aux inputs. Times One US M Valve Amplification Co (VAC) US V VTL (Vacuum Tube Logic). Just read the upgrades below and see the photos. B Rowland Research US B Russ Andrews (RATA) UK M Sonic Frontiers K Canada V. Send in part-ex and offers - happy to consider.Īnthem Integrated 1 from Sonic Frontiers of Canada with full out cost no object upgrades by the original SF owner - Chris Johnson. amplifiers (6922s) in cascade, followed by a driver cathode follower (5687WB) direct-coupled to the output tubes (KT88). The heavy binding posts are rhodium-plated, solid-copper units from Cardas, and the input jacks and internal wiring are from Kimber. sonic frontiers line 1 tube preamplifier with excellent 6 nos tubes Gumtree AU A2,600 Apr 22, 2023. Passive components include Solen and Wima capacitors and Vishay and Roderstein resistors. After approximately 5 seconds you should see an orange glow appearing inside each tube. See my last post for a full list of upgrades. The tubes are sourced from Sovtek, Svetlana, and Philips (US JANs), and are exactingly graded and matched.
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