pre amplifier kit
pre amplifier kit
pre amplifier kit
pre amplifier kit

Tonewinner wholesale 7.1.4 decoding AV pre amplifier

AT-200 is a professional theater & Karaoke integrated audio-video decoder for 7.1.4 setup. It’s developed and designed by engineers recognized by American THX company and it’s Dolby Atmos, DTS:X & HDMI2.0 certified. As a multi-functional decoder, it can be commercially customized for cinemas and theaters for immersive 3D Hi-Fi sound effect. 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.

  • Model

  • Channels

  • G.W.

  • THD

  • SNR





7.1.4 Dolby Atmos Karaoke/Theater Processor













7.1.4 Dolby Atmos DTS:X Decoder

With Dolby Surround & DTS Neural:X decoding,

the DSP inside can present non-Dolby Atmos and non-DTS:X audio clips

with immersive 3D sound effect.


Immersive Theater & Karaoke Experience

Tailor-made Home Theater

With separate audio and video matrix subgroup & one-click switch button,

it can achieve audio-video synchronization to match different scenes.

Built-in Audio Effects for Better Sound

A theater & Karaoke button for loop selection of “theater mode”, “built-in effector”,

“external effector” and “pure external vocal” 

One-time Setting Long-term Use

It can automatically save the setting data of each HDMI input channel

and automatically recognize the theater or Karaoke mode.

Multi-channel Digital Karaoke Sound

Built-in Karaoke sound parameter

DSP reverberation processing

Multi-level tuning

Built-in feedback exterminator

Dynamic frequency shifting


Original Easy Test EQ 

Get into the EQ testing with the professional microphone ETM-2.

The Mic will auto-capture the sound information and transfer it to the amplifying part to automatically equalize parameters of each channel. The close balance of all channels will bring better sound effect.

Auto measure of the distance between speakers & seating position.

Auto adjustment of delay & sound pressure level.

Auto calibration of speaker frequency response & compensation.

(The ETM-2 microphone is not included)

EQ Setting Introduction

RS232 Protocol

Connect your smart home devices to the RS232 port to

add more fun to your daily life.

OSD English Menu

Simple OSD layer menu with clear options for easy setting.

Friendly for beginners.

Lossless Music Formats

Support 128G USB disk, TF card & APE, FLAC, WAV, MP3, WMA, etc.

15-meter Bluetooth Transmission

High-speed & stable, low distortion, energy consumption & latency.

Easy connectivity and auto re-connectivity.

Switch any music apps and platforms you want.

Original APP Control

Original music playing center & management interface.

Multi-level folder management. Song lists of USB disk & TF card on screen.

Easy Firmware Upgrade

Download the latest firmware into a USB disk and connect it to the USB port.

Reboot the machine and the update is actomaticallly done.

Multiple Connections

Support HDMI ARC, optical/coaxial, USB disk, TF Card, PC Audio,

Bluetooth, 5V trigger, IR input & RS232 protocol.


IR Remote Control

One-click theater & Karaoke switch,

one-click factory reset, and lock for stored setting data. 

4K for Life-like Vision

18 Gbps and 3840×2160 4K

bring better contrast and brightness.

It also handles HDMI2.1, HDCP2.2 and

is compatible with HDR series formats.

More Details

Main Features


4K, 2K & backward iterations video formats

Dolby Vision

Dolby Atmos, DTS:X & backward HD iterations


HDMI2.1, 3D, 4K

HLG format

Separate audio-video matrix subgroup


HDMI 2.1 6 in 2 out

RS232 protocol

Optical, coaxial, analog inputs & outputs

DSP Karaoke effect processing

Separate control for EQ, volume control & input control

5V trigger

Auto EQ room calibration

Microphone APP control

English-labeled EQ guide

Lock for stored setting data

7.1.4 digital Karaoke

Setting data backup

Separate setting for Karaoke sound effects

DSP Karaoke effect processing &

One-click theater & Karaoke switch

HDMI video output management

Support Bluetooth, U disk, TF card


IR extension

OSD English menu




Audio and video formats



audio formats: Dolby Atmos, Dolby True HD, DTS:X, DTS Virtual: X & downward formats

video formats: 2160P60, 1080P60 & backward video formats

Input: Bluetooth, analog, optical, coaxial, U disk, TF card, PC, HDMI 2.1 6 in

HDMI support: 4K, 3D, ARC, CEC, standby pass through


Rated input impedance: >20KΩ

Rated output impedance: 1000Ω

Gain: ≥13dB (Analog direct)

THD: ≤0.02% (A-weighted, analog direct,1kHz)

SNR: ≥98dB (A-weighted, analog direct)

Frequency: 10Hz-50kHz (+1/-3 dB, analog direct)

Crosstalk: >80dB (analog direct)

N.W: 5.3kg; G.W: 7.2kg

Power: ~100V to ~240V (50Hz/60Hz)

Dimension: 431x 317x 130mm (WxDxH)

Connection: computer, mobile phone, TV, projector, hard disk player, set-top box, Blu-ray player, etc.


Application: living room, bedroom, home theater, etc.

Accessories: manual x1, power cord x1, certificate x1, remote control x1, HDMI 4K cable x1



≥98dB(A weighted,direct mode,1kHz)
Rated input impedance
≥20kΩ(analog input)
Channel separation
>80dB (analog direct)
Rated output impedance 
Maximum level for undistortion
≥2Vrms  (analog direct)
≤0.01%(A weighted)
10Hz-50kHz(+1/-3dB, analog direct)
≥13dB(analog direct)


AT-200 is a professional home theatre & Karaoke integrated audio-video decoder for 7.1.4 setup. This preamplifier with subwoofer output for home theater supports Dolby Atmos, DTS:X, 4K video technology and is compatible with 3D, HDR10, Dolby Vision and other video formats. It has professional 7.1.4 channels immersive kKaraoke effect and supports external audio effects.


Function of 12 CH AV Processor


Audio processing:

  • Support advanced Dolby Atmos, DTS:X audio decoding, and all backward HD audio formats decoding including Dolby True-HD, Dolby Digital Plus, DTS Master, DTS HI RES, etc.
  • Audio and video matrix group output.
  • HDMI 2.0 six inputs and two outputs; each input group is independently matrix matched.
  • Support independent setting and storage of mode, volume & Karaoke.
  • Smart room acoustic testing.
  • OSD English menu; 5 band (bass) + 11band (full frequency channel) of EQ adjustment.
  • Independent adjustment of each input group EQ.
  • Up to1000 millisecond lip synchronization.
  • Low frequency management: independent adjust the crossover and slope of front, center, surround, rear, sky channels; bass enhancement.
  • Speaker layout: 5.1, 5.1.2, 5.1.4, 7.1, 7.1.2, 7.1.4; can support two subwoofers placement.
  • 7.1.4 fully balanced ports and RCA output.
  • One-click Theater/Karaoke mode switching (three options: built-in effect, external pure vocal, and external effect).
  • Preset the power-on Karaoke volume and music volume.
  • 7.1.4 immersive digital Karaoke effect; DSP digital karaoke sound effect; anti-howling design.
  • Support external effects to enhance sound quality.
  • Support Bluetooth wireless transmission.
  • Support USB disk, TF card local music playback.
  • USB Audio port for PC digital audio input.
  • Support HDMI ARC.
  • Support 2 optical, 2 coaxial, 3 stereo audio inputs.
  • Support DRC dynamic range compression processing.


Video processing:

  • HDMI 2.0 six in and two out; support audio and video matrix grouping.
  • Support 3D, 4K Ultra HD transmission and processing, and all backward video formats.
  • Support Dolby Vision.
  • Support HDR10, HDR10+.
  • Support HLG Hybrid Log-Gamma.
  • OSD on screen English menu.
  • Support HDMI CEC.
  • Support management of HDMI outputs.


Other Function


  • Support RS232 protocol.
  • One button to adjust common-use function.
  • Support IR extension (IR extender (without independent power) is not included).
  • Support 5V trigger.
  • Support standby pass-through.
  • Support HDCP2.2 protocol.
  • Support Mobile phone APP control.
  • Support lock for stored parameter.
  • Support parameter backup.
  • Support one-button factory settings.
  • Support personal parameter setting and saving.


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Leave A Message
If you’re interested in our products or have any suggestions, please leave a message here, and we’ll contact you as soon as possible.