The flagship powerhouse of Eden's renowned Nemesis line, the Eden Nemesis NA-650 delivers 650 watts of high-headroom, clean solid-state power engineered by Eden Electronics USA. Built around a high-current, all-FET output stage capable of driving down to a 2-ohm speaker load, this head combines Eden's hi-fi warmth with touring-grade reliability.
The front panel features a Bi-FET preamplifier with extensive tone-sculpting flexibility. In addition to a standard 3-band EQ (Bass, Mid, Treble), the NA-650 is equipped with a dedicated Semi-Parametric Equalizer allowing frequency sweeps from 40Hz to 10kHz with +/-15dB of boost/cut. Dynamic shaping controls include Eden's signature Enhance control (a studio-grade scooped-mid contour), an Edge control that dials in vintage tube-style top-end harmonic compression, a Gain Boost switch, and an internal compression circuit with a dedicated front-panel Comp Bypass toggle.
The rear panel is loaded with professional studio and stage connectivity: • Dual Effects Loops: Independent Pre-EQ and Post-EQ Send/Return loops for flexible pedal and rack gear routing. • Balanced Recording Output: Studio-grade balanced XLR Direct Out with ground lift switch and a dedicated front-panel D.I. Level knob. • Robust Speaker Outputs: Dual Speakon connectors alongside dual 1/4" speaker jacks wired for high-current transfer down to 2 Ohms. • Utility Jacks: Dedicated 1/4" Tuner Output and Footswitch jack (for remote Mute and Enhance bypass).
Cosmetically, the unit features the iconic blue anodized front faceplate with an illuminated backlit blue Nemesis center logo badge. This head is in excellent, bench-tested condition with smooth detented pots, noise-free switches, clean fan operation, and strong output. Includes standard IEC power cable.
SPECIFICATIONS: • Brand: Nemesis by Eden (Eden Electronics) • Model: NA-650 (NA650) • Origin: Designed & Engineered by Eden Electronics USA (Assembled in China) • Power Output: 650 Watts RMS @ 2 Ohms (approx. 440W @ 4 Ohms / 275W @ 8 Ohms) • Power Amp Topology: High-Current All-FET Output Section • Preamp: Bi-FET Pre Amplifier Architecture • Tone Shaping: 3-Band Fixed EQ (Bass, Mid, Treble) + Semi-Parametric EQ (40Hz–10kHz, +/-15dB Level) • Voicing Controls: Edge, Enhance, Gain Boost Switch, Compressor Bypass Switch • Inputs: 1/4" High-Impedance Instrument Input, 1/4" Front-Panel Headphone Jack • Direct Out: Balanced XLR Recording Output with Ground Lift & Front-Panel D.I. Level • Effects Loops: Dual 1/4" Loops (Pre-EQ Loop Send/Return & Post-EQ Loop Send/Return) • Auxiliary Connections: 1/4" Tuner Out, 1/4" Footswitch Jack, Rear Mute/Enhance Button • Speaker Outputs: 2x Speakon + 2x 1/4" Speaker Jacks (2-Ohm Minimum Load) • Dimensions: 17" W x 3.5" H (2U) x 11" D • Weight: Approx. 18 lbs • Power Supply: 120V AC 50/60Hz (Standard IEC)
