regards from Gerhard Wartha Sansui user with SANSUI tube amp website. Sonic Frontiers SFS-50 Tube Power Amplifier. The room is big and it can get very noisy. I play at about 90% so about 36 instead of the recommended 40. Sonic Frontiers SFL-1 / SFS-50 Tubes pre/power amps (used)SOLD. You can easily change the bias here as well and thus use the end tubes even more. The bass goes in the direction of medium home guitar amplifiers, the middle and highs are solid hi-fi. There are many bass sequences that the SFS 40 plays very loudly and impressively despite the up to the 16 ohms. Preamp: Sonic Frontiers Line 2 Special Edition. It has nicely moved my system another substantial step towards a natural, emotionally engaging sound. The sound is neither honey coated nor flat and electronic. The SFS 40 plays quickly, openly and with clearly distinguishable, sharply separated instrument notes. User controls and remote operation are some of the best Ive seen a total pleasure. Very open and differentiated, I played Beatles seperated tracks. A beautiful device that looks very stable from the outside at 17 kg. The bias can be changed easily and quickly. Pictured with KT-88 tubes and also including an almost new set of EL-34s, Amp functions as new and needs nothing, a flawless performer and just a thing of beauty to behold. This website is not affiliated with or sponsored by Sonic Frontiers. Recently recapped and many upgrades by Audio Connexion. Stereo Tube Amplifier (2 reviews) Specifications. 6CA7, according to the description one could even use 6556 or 6L6GC. Sonic Frontiers SFS-80 Power amplifier in Very Good/Excellent condition. The remote is geniously made and makes the preamp easy operated, compared to other high end stuff. It is not typical analytic (anymore), but neutral and very defined and pleasant to listend to. I've just tried this main amp, I used the SANSUI CA 303 from 1967 as a preamplifier, 4 Infinity Kappa 8 in series as speakers, so 4 speaker with a total 16 ohms per channel. The Sonic Frontier Line 1 is a truly neutral preamp with extended bass, smooth midrange and a sweet and detailed top. Things like speed, precision, and clarity are excellent, and the Power 3 will effortlessly control virtually any speaker. Thread starter Tchoy668 Start date 5:38 am Jump to Latest T. Sonic Frontiers SFS-80 schematic diagram. The estimated output wpower tubes is 70W. Reviewed Mar 21st, 2022 by gerhard wartha It succeeds in many sonic criteria as well. Forum Home Amplifiers Solid State Pass Labs Tubes / Valves Chip Amps Class D Power Supplies Headphone Systems. This amp comes with 4 X 6550 power tubes, 2 X Philips 6DJ8 input tubes and 2 x GE (Holland) 7308 tubes as drivers in a push pull configuration to deliver 80W continuous output based on 4 KT99 power tubes.
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