First Watt F7 Stereo Amplifier
First Watt F7 Stereo Amplifier

F7 Stereo Amplifier

Vendor
First Watt
Regular price
$4,000.00
Sale price
$4,000.00

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Unique two-stage push-pull amplifier.  Very little feedback, a little positive current feedback gives this amplifier a unique sound and great control. 

20 watts per channel, low output impedance (high damping factor), and a relatively low input impedance of 10K ohms. 

As close to a perfectly transparent amplifier as you are going to see.

 

 

Nominal specifications:

 

Measured at 120 V AC and an 8 ohm load:

Distortion @ 1 watt 0.05%
Output power 8 ohms

20 watts @ 2% THD, 1 kHz


Output power 4 ohms


30 watts @ 3% THD, 1 kHz


Input Impedance

10 Kohms

Gain

14.5 dB

Damping Factor

>100

Input Sensitivity (1 watt)

 


0.53 V



Input Sensitivity (max output)


2.7 V


Output Noise

100 uV unweighted 20 - 20 kHz
 

Power consumption

170 watts

Fuse

3AG slow blow type -


2.5 Amp for 120VAC


1.25 Amp for 240 VAC