Rock Master Metal Master Tube Guitar Amplifier Combo and Head Operator´s Manual Please, first read this manual carefully!
The ENGL RockMaster amp and the ENGL MetalMaster amp are purpose-designed for performance and voiced to meet specific sound characters in order to offer the guitar player a perfect platfom for diverse tonal genres. Both the combo and head versions of each amp model come in exceedingly compact housings. These amplifier series are perfect for small gigs, home or studio recording, and practicing at lower volumes without sacrificing tone.
CAUTION: Extremely high gain and volume levels in Lead mode can produce powerful feedback. Avoid feedback squeals; they can lead to hearing loss and damage speakers! At higher volumes, back off the Gain and Treble levels in order to prevent unchecked feedback! 4 Bass: Bottom end voicing control of the preamps´s passive EQ. 5 Middle: Mid-range voicing control of the preamps´s passive EQ. 6 Treble: Upper range voicing control of the preamps´s passive EQ.
Rear Panel R Footswitch FX Loop Tube Guitar Amplifier RockMaster 20 Line Out Balanced CAUTION ! Poweramp Output A B C 8 - 16 Ohms full power 8 Ohms serial to jack A 8 - 16 Ohms Power Soak Combo: Type E302 Head: Type E307 MetalMaster 20 REPLACE FUSE ONLY WITH SAME TYPE AND RATING ! 15 16 Reverb FX Loop off/on Clean/Lead Mid Shape 17 18 Send Return 19 20 Combo: Type E304 Head: Type E309 Amp-Design by Horst Langer ENGL Amps Made In Germany Frequency Comp.
21 Balanced Line Out Frequency Compensated: The frequency-corrected, balanced Line output jack (¼ stereo jack: tip and ring routes the balanced signal, shaft = Ground/Shield). This signal can be routed directly to a mixing console or a recording unit. The line out is located post poweramp in the signal chain, so ensure the poweramp is activated. If you wish to run the amp without driving a speaker, the built-in Power Soak (25) can provide the necessary load for the power amp.
Power Soak Panel R I. Full Power II. 5 watts III. 1 watt IV.
Technical Data Rated power: Input sensitivity level Input, Clean channel: Input sensitivity FX Return: Output level FX Send, level range: Balanced Line Output: Tubes: further details see below! Fuses: mains fuse at 100 / 110 / 120 mains voltage mains fuse at 220 / 230 / 240 mains voltage Power Tube Fuses (internal on main PCB): Important: Power Consumption: Dimensions: Combo (type E302, E304): Head (type E307, E309): Weight: Combo: approx. 20 watts (maxium); -20 dB nominal.; -20 dB, approx. 0 dB max.
Handling and Care * Keep the amp safe from hard knocks and shocks. Tubes are fragile and tend to suffer when exposed to mechanical stress! * Let the amp cool down before you transport it. Ten minutes or so will spare the tubes. * Tubes take some 20 seconds to warm up after you switch the power on, and about two to three minutes before they are able to pump out full power. Make a habit of giving your amp plenty of time to get toasty and flipping the Standby switch for short breaks.
Troubleshooting * The amp does not power-up after you have switched the power on; the Power On LED (12) does not light up; the Channel & Mid Shape switching functions do not react, i.e. the corresponding control LED's do not indicate an active function; moreover no sound is emanating from the connected speaker. -> Is the mains cord connected to the receptacle/live power source? -> Is the power cable you are using intact? Try another equal mains cable.
Your options for controlling the ENGL RockMaster or MetalMaster amp remotely: R Footswitch FX Loop Tube Guitar Amplifier RockMaster 20 Line Out Balanced CAUTION ! Poweramp Output A B C 8 - 16 Ohms full power 8 Ohms serial to jack A 8 - 16 Ohms Power Soak Combo: Type E302 Head: Type E307 MetalMaster 20 Reverb FX Loop off/on REPLACE FUSE ONLY WITH SAME TYPE AND RATING ! 1. or Clean/Lead Mid Shape Return ENGL Amps Made In Germany Frequency Comp. 2.
