J2

J2

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

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Stereophile's Amplifier Product of the year in 2016.   

JFET driver, JFET power transistors provide 25 watts in a push-pull configuration. JFETs are widely recognized as having the highest audio quality of any transistor.   

The circuit is very linear, requiring minimal feedback.  Yet the sound is very clear and tight.

 

Nominal specifications:

Measured at 120 V AC and an 8 ohm load:

Distortion @ 1 watt
.025% @ 1 kHz
Output power 8 ohms
30 watts @ 1% THD, 1 kHz
Output power 4 ohms

15 watts @ 1% THD, 1 kHz

Input Impedance
100 kOhms
Balanced input CMRR
-60 dB @ 1 kHz
Gain
20 dB
Damping Factor
20
Input Sensitivity (1 watt)

 

280 mV

Input Sensitivity (rated power)

1.4 V

Output Noise
100 μV unweighted 20 - 20 kHz
 
Power consumption
200 watts
Fuse

3AG slow blow type -

2.5 Amp for 120 VAC

1.25 Amp for 240 VAC