Tonewinner AD-7300PA+ 7 channels AV power audio amplifier
100% Brand New
Declaration
All items guaranteed 100% BRAND NEW in the original edition Box.
ONE-YEAR WARRANTY !!!
Description：
AD-7300PA+ is a 7 channel Hi-Fi amplifier which is specially designed to match the AD-7300HD processor. It is a high end & high power amplifier with multi-protection including overheat, overload, overcurent, overvoltage protection, so as to offer reliable performancce for home theater system. As a top 10 audio brand in China, Tonewinner has 30+ years experience in designing and manufacturing acoustic products. As an original supplier, Tonewinner always warmly welcomes distributors, partners and customers around the world.
Multiple Protections： Adopts five-fold protection of overvoltage, overheating, overload, overcurrent and short circuit to ensure that the machine and the speakers are working normally.
HD audio and video decoder：
High-fidelity sound effects and excellent sound quality, powerful, practical and convenient High-definition decoding post-stage high-power amplifier
Audiophile output interface ：
The input part of the circuit adopts optional balanced and unbalanced input, low-noise double differential amplifier circuit and mirror constant current source load, which can improve the signal-to-noise ratio of the whole machine and make it more suitable for the high sound pressure dynamic of home theater. Large, strong driving force, high slew rate, temperature compensation circuit and DC servo circuit are designed at the last stage of the circuit, and a negative feedback circuit is designed to ensure the stability of the machine.
Hi-Fi Circuit Design：
It completely adopts the high-fidelity circuit structure of the independent 7-channel modular separation element power amplifier unit circuit board. The HI-FI circuit used in each channel and the process, layout, and materials used are almost the same, among which the front and left channels are exposed radiators, which are not only larger in size, but also have a larger current in the power amplifier stage due to the quiescent currents at all levels of the circuit. The technical basis of power output such as 7 channels.
High Power Transistor：
3 pairs of famous ON Semiconductor NJW0302G/NJWO281G audio dedicated high-power transistors with three-stage Darlington circuit form a push-pull output, providing a powerful power of 310W and 8 ohms per channel. The whole machine has a total of 7 channels, and 42 NJW0302G/NJW0281G high-power tubes are really powerful!
Specifications:
Frequency response: 20Hz-50KHz (+1/-3dB)
Rated impedance: 8 Ω
Signal-to-noise ratio ≥100dB (A-weighted)
Gain: 28dB
Distortion: ≤0.09% (1kHz, normal working conditions)
Dimensions: 440×197×445mm (width×height×depth)
Rated output power: 515 Rms/4Ω (mono, 1KHz, THD=3%)
: 310W Rms/8Ω (mono, 1kHz, THD=3%)
Net weight: 25kg
Material: aluminum alloy
Power supply: 110V/115V, 120V, 127V, 230V, 240V version will take 3-14 work days to order, 220V version is in stock.
