STATUS - SOLD
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Description :
The Sonic Frontiers SFL-1 Signature is an excellent pre-amplifier. Two of the things about the the SFL-1 is its ability to throw a huge soundstage and the dynamics it produces which are in my opinion as good as solid state preamps. Beyond the dynamics is the level of transparency & depth no doubt contributed by its one tube.

Specifications :
Type................................................Hybrid tube pre-amplifier
       ................................................For Line stage only
Tube................................................Single CV4024 / M8162 tube
Inputs..............................................4
Frequency response.........................2 Hz to 100 kHz +/- 0.5dB
                             .........................>200 kHz, -0.3 dB (100K load)
THD & noise....................................<0.1% from 20 Hz to 20 khz
                 .....................................Typically < 0.05% @ 1 kHz
Gain................................................20 dB @ 1 kHz
Noise...............................................180 uV unweighted
Intermodulation distortion..................< 0.3%, @ 2V output
Input inpedance................................45 Kohm(Direct input), 90 Kohm(Normal inputs)
Output impedance............................320 ohms @1 kHz
Output voltage..................................Maximum 25 Vrms
Maximum input................................2.5 Vrms
Stereo seperation.............................60 dB @ 1 kHz (Cosstalk)
Dimensions(w x d x h)......................48.5 x 31.5 x 11.5 cm
Weight............................................9 kg

Miscellaneous :
Made in...........................................USA
Condition.........................................9.5 / 10 (Good condition)

Reviews : 
http://www.anthemav.com/OldSitev1/pdf/sfl1.pdf (Online manual)
http://www.audioreview.com/cat/audioreview/amplification/preamplifiers/sonic-frontiers/