C2.6

Core series · Amplifiers

Frequency Response (−1 dB): 20 – 20 000 Hz
Weight Net: 14 kg

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Overview

Solid foundation for everyday systems—the CELTO C2.6 provides a genuine 2× 400W 8Ω / 2x 600W 4Ω With smooth, musical delivery in a classic 2U design. This 2-step Class H amplifier excels in small to medium installations and portable setups with consistent performance. Low-noise preamp with PeakStop Opto-Limiter ensures clean signal path and speaker protection without coloration. Comprehensive safeguards including soft-start, short-circuit, and thermal protection keep operations worry-free. Front-to-back cooling with temperature-regulated fans maintains stability even under heavy load. NEUTRIK XLR inputs/links, NEUTRIK SpeakON outputs, plus binding posts offer flexible connectivity. At 14 kg, it's built like a tank yet remains manageable for mobile use. The C2.6 proves that sometimes the quiet, dependable option is the smartest choice in the rack.

Specifications

Channels: 2
RMS Power 8Ω (per ch., EIA 1 kHz 1% THD): 400W
RMS Power 4Ω (per ch.): 600W
RMS Power 2Ω (per ch.): Not recommended
Bridge 8Ω: 1x 1200W
Bridge 4Ω: Not recommended
Frequency Response (−1 dB): 20 – 20 000 Hz
Typical THD: < 0.1 %
Signal to Noise Ratio (A-weighted): 108 dB
Crosstalk (1 kHz): > 65 dB
Slew Rate: > 15 V/µs
Damping Factor (8Ω): > 500 (internal)
Voltage Gain: 37.3 dB (58 times voltage)
Input Impedance: 20 kΩ balanced
Preamp: Low noise and low distortion circuit with PeakStop Opto-Limiter
Output Stage / Class: 2-step Class H (70% efficiency)
Power Supply: Linear topology with toroidal transforner
Cooling: Temperature regulated long life brush-less fans, front to back airflow
Power Connector: SEETRONIC PowerCon
Input Connectors: 2x NEUTRIK XLR + 2x NEUTRIK XLR Link
Output Connectors: 2x NEUTRIK Speakon NL4 + 2x speaker Binding post terminals
Dimensions (W×H×D) mm: 483×88×378 (2U)
Weight Net: 14 kg