The Tonewinner AD-7300PA+ is a 7-channel Class AB power amplifier ideal for home theater integration. Capable of delivering significant power, measured at 584W RMS for a single channel driven from 4Ω or 7x190W for 7 channels driven from 8Ω, this amplifier offers excellent dynamics and delivers low noise.
This high power level requires the integration of a complete and effective protection circuit. Therefore, Tonewinner AD-7300PA+ is equipped with protection against short circuit, overload, overheat, overvoltage and overcurrent.
To provide this power, the AD-7300PA+ uses 7 independent discrete mono amplifier modules. Each of them is equipped with 3 pairs of high-performance Onsemi NJW0281G and NJW0302G transistors. The left and right channels also benefit from a high-current configuration approaching the performance of a Class A architecture, and use side-mounted heatsinks to effectively dissipate the heat generated by such a design.
In addition, single-ended RCA input and balanced XLR input are available for each channel. Input selection is done using a switch for each channel.
Weighing in at 25kg on the scale, the Tonewinner AD-7300PA+ is a massive amplifier, clad in an aluminum chassis and two large side-mounted heatsinks. On its front panel there is an impressive blue meter with adjustable brightness.
Characteristics of Tonewinner AD-7300PA+:
- Type: Power Amplifier
- Amplification Type: Class AB
- Number of channels: 7
- Inputs: 7* single-ended mono RCA/7* balanced mono XLR/1* trigger input/1* LINK input
- Outputs: 7* speaker terminals
- Output Power: 584 W RMS @ 1 channel powered, 4 ohms, 20 Hz-20 kHz, THD 0.1% / 307 W RMS @ 2 channels powered, 8 ohms, THD 0.1% / 500 W RMS @ 2 channels powered , 4 ohms, THD 0.1%/190 W RMS @ 7 powered channels, 8 ohms, THD 0.1%
- SNR: ≥ 100 dB (A-weighted)
- THD: ≤ 0.09% (1 kHz)
- THD+N: 0.006% @ 100 W RMS, 1 kHz, 8 ohms
- Frequency response: 20Hz-50kHz (+1/-3dB)
- Nominal impedance: 8 ohms
- Gain: 28 dB
- Damping factor: > 149 @ 8 ohms
- Input Sensitivity: 1.5V @ 8ohms General Supply Voltage: 110-230VAC 50/60Hz
- Dimensions: 440x445x197 mm
- Weight: 25 kg
