![]() ![]() The long history and quality of Vox instruments is evidenced by a long list of world-famous musicians and bands such as: The Shadows, the band at whose request the AC was developed, The Beatles, Keith Richards and Brian Jones of The Rolling Stones, Pete Townshend (The Who), The Stooges, Status Quo, Ritchie Blackmore (Deep Purple), Rory Gallagher, Jeff Beck, Jimmy Page (Led Zeppelin), John Scofield, Brian May (Queen), The Edge (U2), Queens of the Stone Age, R.E.M., Radiohead, Oasis, Foo Fighters, and more. ![]() Boasting both a Normal and Top Boost channel, the AC15 Custom is an all-tube, EL84 driven workhorse that delivers 15 watts of authentic British tone into your choice of a genuine Celestion Greenback or Alnico Blue speaker. Electro-Harmonix 12AX7 / ECC83 Preamp Tubes (Three Pack) 4. The classic Vox design is catered for by the front face voicing fabric with the characteristic vintage Diamond design. The VOX AC15 is the amp that started it all. JJ 12AX7 / ECC83 Preamp Vacuum Tubes (Three Pack) 3. Sound projection is handled by a 12-inch Celestion G12M Greenback speaker. On the rear panel you'll find outputs to external speakers (16/8 ohm impedance) and an input for a VFS2A footswitch (footswitch not included). ![]() The main panel offers inputs for each of the channels (Normal, Top Boost), separate volume controls, a two-band equalizer for the Top Boost channel, Master Volume and Tone Cut potentiometers for the end amp section, and controls for the built-in Reverb and Tremolo effects. EL84 power delivers 15-watts of authentic British tone. It is a two-channel unit with 15 watts of power. Adored by the biggest names in music for nearly 60 years, the VOX AC15 Custom carries on the tradition that began in 1958 and offers guitarists the unmistakable sound of VOX, with all the refinements of a modern amplifier. ![]() It is a reliable and sonically precise instrument for studio work and for playing in clubs, bars and theatres. The AC15C1 is its contemporary interpretation, combining traditional elements with modern ones. I am not sure if I quite understand how this bridge rectifier is working.The AC15 all-amp combo is still prized by the music community today for its ability to provide guitars with a warm, articulate tone and the choice of two channels. They are sometimes warm to the touch but sometimes not. V5 EL84 is measuring 5.4V AC between pins 4 and 5Īm I just crazy or should I be measuring these heater voltages differently? The power tubes heaters light up but it seems the preamps are not. V4 EL84 is measuring 0.4V AC between pins 4 and 5 V1,2,3 when I measure on AC I am getting 0.08V on pins 4 and 5 to 9, however when the amp was first turned on it was jumping around from 0.03 to 4.5V The Heater voltages!!! When measuring from pins 4/5 to pin9 I am getting some weird readings Low Plate Voltage on V2, when I swapped in a Tung-sol the voltages jumped up to 150V on pin1 and 190V on pin6 Kathode voltage (pin3) on the EL84's, other voltage charts I looked at had 11.4-15V and mine is holding steady at 4V Low Plate voltage on the EL84's, I have substituted other good pairs with minimal difference. In the AC15C1 (and all other tube amps), each tube in the preamp has a discrete function, and advantage can be taken of this to place a particular tube for optimum result. I am concerned about a few things going on: The 12AX7 has many many cousins, almost all of which are totally interchangeable. I have a Vox AC15C1 Chinese made combo on my bench that I need some help with. ![]()
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