Integrated Class A amplifier with low-feedback output stage.
2 x 125 W into 8 Ω / 2 x 200 W into 4 Ω / 2 x 370 W into 2 Ω
Inputs: 3 RCA + 1 XLR / Outputs: 1 RCA + 1 XLR (pre-out)
High peak current: >100 A
Channel separation >120 dB / THD+N <0.004%
Damping factor >350 (8 Ω)
Prepared for upgrade to ECI 6D / ECI 6DX
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Electrocompaniet ECI 6 MKII. Power, Musicality, and Scandinavian Design
The Electrocompaniet ECI 6 MKII is the refined evolution of the acclaimed ECI 5 MKII, bringing together the warmth of pure Class A amplification with outstanding power delivery and audiophile-grade architecture. With 2 × 125 W into 8 ohms, this integrated amplifier is engineered to drive a wide range of high-fidelity loudspeakers with ease and control.
Handcrafted in Norway, the ECI 6 MKII builds upon its predecessor with an upgraded power supply and a more advanced preamp section, offering improved dynamics, enhanced transparency, and exceptional musicality. With 4 analog inputs (3 RCA + 1 XLR) and both RCA and XLR pre-out options, it’s ready for integration into high-end stereo systems and future expansions.
Key Features
High-current Class A/B amplifier: 2 × 125 W (8 Ω), 2 × 200 W (4 Ω), 2 × 370 W (2 Ω)
Class A input stage with no feedback for pure, transparent signal path
Low-feedback output stage with high current handling (>100 A peak)
Analog inputs: 3 × RCA, 1 × balanced XLR
Preamp outputs: 1 × RCA, 1 × balanced XLR
Exceptional channel separation: > 120 dB
Ultra-low THD+N: < 0.004%
Damping factor > 350 for deep, controlled bass and accurate speaker control
Upgradeable to digital versions ECI 6D / ECI 6DX
Technical Specifications
Preamplifier Section
Input impedance (XLR): 47 kΩ
Max input level: 10 V RMS
Noise floor: 135 dB
THD+N: < 0.004%
Gain (balanced): 0 dB
Power Amplifier Section
Output power:
2 × 125 W @ 8 Ω
2 × 200 W @ 4 Ω
2 × 370 W @ 2 Ω
Peak current: > 100 A
Output impedance: < 0.02 Ω
Channel separation: > 120 dB
Damping factor: > 350 (8 Ω)
Frequency response: 1 Hz – 150 kHz
THD: < 0.004%
Connectivity
Inputs: 3 × RCA, 1 × XLR
Preamp outputs: 1 × RCA, 1 × XLR
Input sensitivity: 1.3 V RMS (standard), 1.0 V RMS (HT mode)
Power & Dimensions
Power consumption (operation): 110 W
Standby consumption: < 1 W
Dimensions: 470 × 128 × 430 mm (W × H × D)
Weight: 20.5 kg
The Electrocompaniet ECI 6 MKII stands as a true reference integrated amplifier—delivering raw power with refined grace. Whether paired with demanding speakers or used as the cornerstone of a high-end setup, it offers a deeply engaging and musical listening experience, all wrapped in a timeless Scandinavian aesthetic