I made sure to test that it mounts in a rack without issue. Cosmetically, it has some rack rash, and the top panel and front grille are slightly warped, but there’s no impact on operation. The left channel currently has ENGL 6L6 tubes and the right has a Mesa set, both with minimal wear. havnt been able to make my gear right: My preamp is a Engl e530 / i use the poweramp section of a RD5H Randall head (still waiting for a poweramp), but. If you like the rich harmonic tone of 5881 power amp tubes, the 840/50 should be your first. The A/B controls are switchable via an external footswitch or through MIDI commands via a MIDI. The Engl 840 is one very impressive 2 x 50 watt tube power amp. Each of the two stereo channels features two volume and two presence controls (A and B), so you can dial in individual volume and presence settings. It has power to spare and a bright and smooth tone that’s easy to adjust. In addition to first-class tube tone, the Engl 840 Poweramp offers a number of practical features.
I used this power amp on stage and studio with a variety of preamps and it never disappointed. If you want to know more about all the features, ENGL’s website has the manual.
The back also has 4, 8 and 16-ohm inputs in a variety of configurations for mono or stereo use with cabinets in series or parallel.
There are also two sets of depth and presence controls for power amp low/high frequencies switchable through a jack on the back. comes with new tubes, used but technical everything perfect. M+ is the ultimate clean pedal platform that completes your pedalboard. The four Type 5881 tubes - the original military version of a 6L6 - offer more than enough headroom.
UPGRADE NOW With the high headroom clean preamp (inspired by a 74 Silverface Bman), Torpedo C.A.B. The 2 x 50 watts of this power amp are truly impressive. There are two separate footswitchable volume controls for each side of the power amp so you can flip between volumes for solos or any other reason you’d want a preset volume change. Experience official captures by Celestion®, ENGL®, REVV® and Victory Amplification®, and more, direct from your pedalboard. Not only does it bring a huge amount of power in a 2-space rack format, it also includes a unique set of features making it a power amp with a lot of options. This is a great all-tube stereo power amp with 100 watts of 6L6 tube tone per side.