BACK 

A close-up view of the F307 front panel. The flap across the bottom, drops down to reveal tape switching, filter switches etc.  

Audio connections by RCA Phono (cinch jacks). 

Speaker connections are by the infamous DIN plugs.

The Mk2 version of this amplifier was launched at the 1971 Audio Fair and was available in a green metal case, as well as the traditional wooden one.

POWER OUTPUT

Minimum rated output per channel ( both channels driven)

R.M.S power            I.H.F.M. power

Load  

15 ohm 

8 ohm

 (sine wave)                    (music)

15 watts                         20 watts

20 watts                         25 watts

Distortion

At all levels up to rated power output 

( both channels driven)

Frequency Response    

All inputs except Magnetic pickup input

20 Hz - 25 kHz within 1 dB

15 Hz - 30 kHz within 3dB

Dependant upon source impedance

Record/Replay and inter-channel typically better than

 - 60 dB 30Hz to 1 kHz

 - 45 dB 1 kHz to 10 kHz

Volume controls at maximum, input short circuit. Tone controls and filter at level

Tape / Ceramic P.U./

Radio/Aux inputs               

Magnetic P.U input           

< - 65 dB 

< - 60 dB

Low pass filters. Falling by approx. 30 dB / octave selected by push buttons - 3 dB @ 10 kHz , 7 kHz or 5 kHz

16.185 in wide x 5 in high x 9.675 deep knobs protrude1 inch from panel.

Rear clearance for connections 1.25 inches.