User manual for CAT


New Member
Mar 1, 2018
Hi, does anyone know where to get an user manual for CAT JL2? I seem to have mislaid mine, and I think its time to check the bias settings..
Best regards,
Oct 15, 2010
Nothing. I was interested in specs of his current amp offerings. I find it surprising he doesn’t have a website in this day and age.
I found this on the ‘net for the CAT JL3:

Power 150 watts into 8 ohms - class A
200 Watts into 4 ohms - class A
Frequency Response 1 Hz to 75 KHz (+0, -3dB)
Gain 30.6 dB (8ohms)
Sensitivity 835mV AC for full power (8 ohms)
Noise 110 dB below full power
Power Bandwidth 10 Hz to 30 kHz
Damping factor 108
Dimensions 27" x 18.5" x 10.5" (L:W:H)
68.6 x 47 x 26.7 cm
Weight 180 lbs. (82kg) each

And for the JL7:

Power: 250 Watts, 4 or 8 ohms, 1%THD
THD @ 1 Watt: 0.005%
Energy Storage: 1800 joules
Bandwidth: 1 Hz to 70 kHz (+0, -3dB)
Damping Factor: 14, across entire audio band
Gain: 27dB (8 ohms), 24dB (4 ohms)
Input Impedance: 100K ohms single ended 200K ohms balanced
Sensitivity: 2 VAC for full power
Noise: 120 dB below full power
Power Bandwidth: 20 Hz to 30 kHz
Tube Complement: 2 x 6922 driver and power supply 8 x KT150, triode mode
Dimensions: 20” x 12.4” x 7.8” (L:W:H) 50cm x 31cm x 20cm
Weight: 88 lbs. (40kg) each unit

Hope this helps.

Steve Williams

Site Founder, Site Owner, Administrator
If/when I try tube amps later this summer, his mono's might be the ticket if I don't go ML3's
Does he still work out of his garage. He visited me several years ago with another friend of mine. Very interesting guy

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