Tonewinner manufactures 240W 2ch built in preamp amplifier

To meet modern home’s demand for high quality and fashionable products, Tonewinner has developed a new generation of HIFI products. AD-86D HI-FI is one of these products, which is a new generation of middle grade HiFi amplifier to meet the young audio fanciers’ demand for fashionable appearance, exquisite sound. 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
AD-86D
Channels
2.0
Power
2*120W
G.W.
23KG

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AD-86D

Class A Hi-Fi Integrated Amplifier

Generation Update History

Multiple Input Sources

Original App Control Interfaces

15-meter Bluetooth Transmission

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

Switch any music apps and platforms you want.

128G for Lossless Sound Effect

Support 128G USB disk & TF card and support APE, FLAC, WAV, MP3, WMA formats.

HDMI-ARC for Better Transmission

Support HDMI ARC to connect to TV for better sound.

Multiple Connection Options

1 way USB Audio for PC, 1 way optical input and 3 way coaxial inputs, which handles PCM192kHz/24bit for digital devices.

One-step Integrated Amplifier & Amplifier Switch

The PRE OUT jacks and AMP IN jacks are connected by a short circuit ring to make signals of this machine and make it an integrated amplifier. Detach the short circuit ring and you will get an independent amplifier, so input signals can go through the “AMP IN” terminal.

Subwoofer Treble-bass Adjustment

Multi-chamber Internal Layout

The areas of power supply, input, power storage, and left & right amplifying channel are separated into chambers so as to reduce the interference of free electromagnetic wave.

Hi-Fi Circuit Design

The pre-amplifier part adopts high quality operational amplifier, and the amplifier part adopts a typical single-ended input, double-ended output differential amplifying circuit, which has low input noise and greatly improves the voltage gain.

The common-base amplifying circuit is used to improve the circuit performance, and after the temperature compensation and current-expand part, the amplifying output circuit give strong support to drive the speaker units to out put sound.

High Capacitance Filter Capacitor

6 customized filter capacitors in total of 57,400μF capacitance is going to give strong support.

High Power Toroidal Transformer

400VA high power ring transformer works as the power source

and gives high power support to drive the whole machine.

AD-1955 DAC Decoding Chip

It supports 24-Bits, up to 192 kHz sample rate PCM audio data

and about 120 dB SNR/DNR (not muted) at 48KHz sample rate

(A-Weighted) with dependent digital filter and D/A converter.

The flexible serial data input port allows for glueless interconnection

to a variety of devices and also reduces mistakes during decoding.

High Power Toshiba Transistor

A total of eight TTC-5200/TTA1943 high power Toshiba transistors work together to offer bright treble, analytical mid-range and sonic bass.

OPA1678 Operational Amplifier

It adopts nine OPA1678 optional amplifiers from

TI company to form full balance amplifying

structure to bring analytical and warm sound.

Details

Parameters	SNR: ≥96dB (A-weighted,E=1V)
	Frequency range: 20Hz-60KHz (+1/-3 dB)
	THD: ≤0.05% (1KHz,normal work)
	Output power: 120W*2 Rms/8Ω (THD=1%, 1KHz)
	Rated impedance: 4~8 ohm
	Gain: 42dB
	Input impedance: 10K
	N.W: 18.5kg, G.W: 23kg
	Power supply voltage: ~220V(50Hz)
	Overall size: 444x455x160mm
	Unit power consumption: 400W/8Ω

Parameters	AD-86D	Channels	2 (2.0)
THD	<0.05%(1KHz,normal working condition)	SNR	>96dB(A weight)
Power Output	120W(8Ω one channel，1KHz，THD=1%)	Frequency respones	20Hz-60KHz(+1/-3dB)
Rated impedance	8 ohms	Unit consumption	400W/8Ω
Unit Gain	42dB	Input Impedance	10K
Match Impedance	4～8Ω	N.W	12.2KG
Size	44441366mm	Accessories	instruction,wire,certificate,telecontroller

To meet modern home's demand for high quality and fashionable products, Tonewinner has developed a new generation of HIFI products. AD-86D HI-FI is one of these products, which is a new generation of middle grade HiFi amplifier to meet the young audio fanciers' demand for fashionable appearance, exquisite sound.

1. External Design

AD-86D's aluminum alloy cabinet is classical black and silver and anodized to keep the surface polished and bright for long-term service. The front panel is smoothly curved into V shape and decorated with lake-blue display screen. The knobs and buttons on the panel or remote control are all made and polished in good color and texture. The sleek linear and curving design fits most rooms and bring good feelings.

2. Internal Design

The pre-amplifier part adopts the high fidelity op-amp, and the amplifier part adopts differential amplifying circuits and a total of eight TTC-5200/TTA1943 high power Toshiba transistors. Long servo motor circuit and appropriate negative feedback circuit is used to stabilize machine working, minimize distortion and improve performance.

A total of six filter capacitors are customized to fit the machine and support up to 57,400 capacitance, which perform good characteristics in voltage resistance value, temperature resistance value and capacitance value.

The dual-channel OPA1678 operational amplifier from TI company offers higher system-level performance over legacy op amps commonly used in audio circuitry. It achieves a low 4.5-nV/√Hz noise density and low distortion of 0.0001% at 1 kHz which improves audio signal fidelity. It also offers rail-to-rail output swing to within 800 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range.

The NJW1194 is a 2-channel electronic volume with 4-in 1-out stereo audio selector and Tone Control. It performs low noise and low distortion characteristics with resistance ladder circuit. It achieves a -117dBVtyp low output noise, -120dBtyp channel separation and 0.5dB step for treble-bass volume adjustment.

The AD-1955 decoding chip from Analog Devices company supports 24-Bits, 192kHz sample rate PCM audio data.

3. Main Features

Inputs: 1 way USB-Audio, 1 way optical, 3 way coaxial, 3 way analog.
Support 128G TF card or USB disk and handle music formats WAV, FLAC, AFE, etc.
Support Wireless Bluetooth, stable and high-speed.
Support HDMI-ARC to connect to TV.
Support original App control for music playback and adjustment.
Support subwoofer output to form 2.1 channel.
Support one-step integrated amplifier and amplifier switch.

4. Sound Effect

AD-86D supports wide frequency range for most music types and brings analytical vocal and instrument sound. With its good channel separation, no matter for classical or rock music, AD-86D will give you bright treble, bloat mid-range and sonic bass.