HF-400series_Guangzhou Ze Tian audio equipment Co., Ltd.

HF-400series

The HF series circuit is designed as H type. Power amplifier using power tube metal packaging, and power is a large power transformer installation. It has many functions, such as signal overload, intelligent automatic pressure limit, overload automatic attenuation (such as output power, output short circuit) power supply automatic attenuation, when the temperature exceeds the power amplifier output channel (default 120 C), or automatically cut off the output signal as the cooling condition of low shear and high shear failure.

Technical parameter:

HF400 specification parameters (8 Ω 350W, 4 Ω 600W)

Number of amplifier channels: 2

Stereo 8 Ω: 350W

Stereo 4 Ω: 600W

Bridging 8 Ω: 1200W

Input sensitivity: 0.775V/1.0V/1.4V

Signal to noise ratio (A-weighted): ≥ 86dB

Crosstalk attenuation: ≥ 60dB

Signal channel separation (crosstalk at 1KHz): ＞ 70dB Frequency response 1W 8Ohm, 20Hz-20kHz: ± 1dB

Damping coefficient/8 Ω/1000Hz: ≤ 240

Input impedance balanced/unbalanced: 20/10kohm

Amplifier gain: 34dB Analog channel: 3-pin XLR (including 2 × 3 audio link outputs), electronic balanced input

Trimming of total harmonic distortion below 1kHz and 1dB: ≤ 0.5%

Total harmonic distortion 20Hz-20kHz 1 watt: ＜ 0.05dB

Rotation rate: 15V/uS

Protection: soft start, short circuit, limiter, DC fault, AC fuse, thermal cutting

External dimensions (W × H × D) : 464 × eighty-eight × 430 mm

Net weight: 12.5kg

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