{"product_id":"engl-e-840-tube-poweramp-840-50-2x50w-lampes-rack-2u-269147","title":"E 840 POWERAMP TUBE 840\/50 AMP 2X50W 2U RACK LAMPS","description":"\u003ch3\u003eA Key Component in the ENGL Rack Universe\u003c\/h3\u003eThe Poweramp 50\/50 E840 continues ENGL's tradition of stage-ready rack rigs: a genuine tube power amplifier designed to be paired with a preamp (or processor) and drive one or two speaker cabinets with authority. In a modern setup, it delivers the feel of a tube amp (playing response, natural compression, projection) while maintaining the flexibility of a modular system. It's typically the kind of \"backbone\" element you install once in a rack and keep for years of gigs and rehearsals.\u003cbr \/\u003e\u003ch3\u003eWho Is It For? From Versatile Rack Use to Big Stage Sound\u003c\/h3\u003eThe ENGL E840 is clearly aimed at guitarists who play with a \u003cstrong\u003ededicated preamp\u003c\/strong\u003e (rack, preamp pedalboard, modeling with line output) and want a more organic sound than full transistor amplification or a simple PA system. Its 2 x 50 W and huge power reserve make it an excellent choice for \u003cstrong\u003estage\u003c\/strong\u003e, especially when paired with a 2x12 or 4x12 cabinet, and it remains very relevant in \u003cstrong\u003estudio\u003c\/strong\u003e settings whenever you want \"real\" tube dynamics in the transients. Thanks to its stereo capability, it's also perfect for \u003cstrong\u003ewet\/dry\u003c\/strong\u003e or \u003cstrong\u003estereo\u003c\/strong\u003e setups (delays, reverbs, chorus) without losing impact in the center.\u003cbr \/\u003e\u003ch3\u003eA\/B Control, Presence, Depth: A Power Amp That Adjusts Like an Instrument\u003c\/h3\u003eUnlike a \"transparent\" power amp, the E840 offers controls that finely tailor the feel and sonic placement in the mix. The \u003cstrong\u003eMasters A and B\u003c\/strong\u003e recall two output levels (e.g., rhythm\/solo), while the \u003cstrong\u003ePresence A and B\u003c\/strong\u003e refine the brightness and perceived attack. The \u003cstrong\u003eDepth A and B\u003c\/strong\u003e affects the low-end foundation: very useful for thickening a palm-mute, adjusting cabinet warmth, or taming an overpowering bass depending on the venue. This becomes a real advantage live, as you can switch between two behaviors (volume and character) without touching the preamp, maintaining tonal consistency at high volume.\u003cbr \/\u003e\u003ch3\u003eA Tube Sound That Is Full, Punchy, and Rich in Harmonics\u003c\/h3\u003eWith its \u003cstrong\u003e5881\u003c\/strong\u003e tubes, the ENGL Poweramp 50\/50 E840 favors a \u003cstrong\u003epunchy\u003c\/strong\u003e response, solid volume handling, and a harmonic-rich spectrum, delivering the warm and energetic character expected from a tube power section. The clean tone retains width and definition, and when the preamp drives gain, the E840 adds \u003cstrong\u003enatural compression\u003c\/strong\u003e and that displaced air sensation that makes a difference on a guitar cabinet. This type of power amp is particularly appreciated in modern rock and metal for its attack and firmness, while remaining musical enough for more classic tones. It has notably been seen in rock\/metal rigs used by guitarists such as Barry Stock, Christian Muenzner, and Rob Cavestany, illustrating its positioning: a power amp built to handle, project, and stay clear.\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:2rem\"\u003e\n\u003ctable style=\"flex:1 1 300px;width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eelectric preamp\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eTechnology\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eTubes\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eFormat\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eRack\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eEffects loop\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eNo\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eNumber of channels\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e2\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ctable style=\"flex:1 1 300px;width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eEQ\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eTone\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eHeadphone output\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eNo\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eBlack\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003ePower output\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e50 W\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:2rem\"\u003e\n\u003cdiv style=\"flex:1 1 300px\"\u003e\n\u003ctable style=\"width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003estereo tube power amplifier (rack)\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e2 x 50 W\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003ePower tubes\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003e4 x 5881 (6L6 type)\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eMaster\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eA and B\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003ePresence\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eA and B\u003c\/td\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\u003ctd style=\"text-align:left\"\u003eA and B\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 300px\"\u003e\n\u003ctable style=\"width:100%\"\u003e\n  \u003ctr\u003e\u003ctd style=\"text-align:left\"\u003e\u003cstrong\u003eStereo 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