Ресиверы — ToneWinner AT-2300PRO

The AT-2300PRO is an AV receiver with seven amplified channels, built by the Chinese firm Guangzhou Tonewinner Electronics, which the maker presents as three devices in one - a home music centre, a multi-channel karaoke system and a cinema amplifier. Its Dolby Atmos and DTS:X processing reaches a 7.3.4 layout and handles 4K video, and the company quotes a combined power budget of 1170 W across its amplifier channels.

Key specs that matter

Output is split unevenly. The left, right and centre channels are each rated at 230 W RMS into 8 ohm, and the remaining four at 120 W RMS into 8 ohm, both measured with a single channel loaded at 1 kHz and 1 percent THD. Tonewinner lists THD of 0.05 percent or lower, an A-weighted SNR in pure mode of 95 dB or better, a response of 20 Hz to 20 kHz within +1/-3 dB and a gain of at least 38 dB. Rated speaker impedance is 8 ohm. The chassis measures 431 x 402 x 178 mm and weighs 16.3 kg net. A dual-voltage supply accepts 110-115 V at 60 Hz or 220-230 V at 50 Hz, and the warranty runs one year.

Engineering and use context

Dolby Atmos decoding is delivered as 14 channels of line-level output, which lets the receiver double as a pre-processor feeding separate power amplifiers and up to three subwoofers. Upmixing of stereo or older multi-channel tracks is handled by Dolby Surround and the DTS Neural upmixer. The HDMI section offers six inputs and two outputs with up to 18G bandwidth, 3840 x 2160 video and RGB with 4-4-4 chroma sampling, and it is compatible with four HDR standards. Optical, coaxial and USB audio inputs accept multi-channel formats such as DTS 5.1, and USB drives or TF cards can play lossless files directly. The karaoke side adds a multi-tap DSP reverb processor, preset effects and frequency-shifting feedback suppression. The decoding board is multi-layer and gold plated, and control is via a mobile app, the remote or an English on-screen menu. The box includes an HDMI cable, remote and batteries.

Pairing

The higher rating on the front three channels suits larger front speakers, while surrounds and height speakers can be smaller. Owners who outgrow the internal amplification can keep the receiver as a decoder and add a multi-channel power amplifier such as the Tonewinner AD-7300PA+, together with up to three powered subwoofers on the separate outputs.

Alternatives

The Tonewinner AT-2180 is a lower-powered receiver of the same 7.3.4 decoding class, rated at 130 W per channel.