Description
The DarTZeel CTH-8550 MK II integrated amplifier is in like-new condition (pristine factory condition), with no modifications or repairs; the unit was used exclusively for demonstration purposes in a private home studio. The original box and manuals are included.
Technical Specifications:
Inputs: 4 pairs line-level (RCA), 1 pair balanced (XLR), 2 pairs Zeel (BNC), 1 pair MC phono (RCA), 1 pair MM phono (RCA, optional).
Outputs: Preamplifier (RCA), recording (RCA), darT (BNC), speaker terminals (4mm binding posts).
Maximum output power: 200 W into 8 Ω (23 dBW), 330 W into 4 Ω (22.2 dBW), 330 W into 2 Ω (19.2 dBW) – software-limited.
Maximum voltage gain: 0–22 dB (user-adjustable; 12 dB factory default – line-level section); 50–70 dB (user-adjustable – MC phono section).
Power stage voltage gain: 26 dB into 8 Ω.
Input impedance: 1 kΩ (MC phono), 47 kΩ (line-level, unbalanced), 30 kΩ (balanced, XLR), 50 Ω ±1 Ω (Zeel). Output impedance: 75 Ω (preamplifier), 50 Ω (darT), <0.33 Ω in the 20 Hz–20 kHz band (speaker output).
Frequency range: 3 Hz–300 kHz (+0, –6 dB); 20 Hz–50 kHz (±0.5 dB).
Risetime: <0.8 µs. Slew rate: >88 V/µs (peak-to-peak).
