CORE C2.6

Quiet Strength. Endless Reliability.

Installation Portable Amplifiers C Amplifiers
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Description

Solid foundation for everyday systems—the CELTO Acoustique C2.6 provides a genuine 2 × 400 W @ 8 Ω (600 W @ 4 Ω) with smooth, musical delivery in a classic 2U design. This 2-step Class H amplifier excels in small to medium installations and portable setups where consistent performance matters more than flash. 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 copper heatsink and temperature-regulated fans maintains stability even under load. Neutrik XLR inputs/links, 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.

Key Features

  • 2 × 400 W @ 8 Ω (600 W @ 4 Ω) with bridge mode 1200 W @ 8 Ω
  • 2-step Class H topology for efficient, reliable performance (70% efficiency)
  • Comprehensive protections: soft-start, short-circuit, over-voltage/current/load, DC output, temperature
  • Low-noise preamp with PeakStop Opto-Limiter for clean signal and speaker safety
  • Neutrik XLR inputs/links, Speakon outputs + binding posts for versatile connectivity

Applications

Installation Sound Architecture
Portable Professional sound, on demand

Technical specifications

Channels 2
RMS Power @ 8 Ω (per ch., EIA 1 kHz 1% THD) 400 W
RMS Power @ 4 Ω (per ch.) 600 W
RMS Power @ 2 Ω (per ch.) Not recommended
Bridge @ 8 Ω 1200 W
Bridge @ 4 Ω —
Frequency Response (-1 dB) 20 – 20 000 Hz
Typical THD < 0.1 %
Signal to Noise Ratio (A-weighted) > 110 dB
Crosstalk (1 kHz) > 65 dB
Slew Rate > 15 V/µs
Damping Factor (8 Ω) > 500
Voltage Gain 37.3 dB
Input Impedance 20 kΩ
Preamp Low noise/low distortion + PeakStop Opto-Limiter
Output Stage / Class 2-step Class H
Power Supply Linear toroidal transformer
Cooling Front-to-back regulated fans + copper heatsink
Power Connector PowerCon (locking)
Input Connectors 2 × Neutrik XLR (latch) + 2 × XLR Link
Output Connectors 2 × Neutrik Speakon NL4 + 2 × binding posts
Dimensions (W×H×D) mm 483×88×378 (2U)
Weight Net 14 kg