Class A Hi-Fi Amplifier
AD-1PA is a Hi-Fi stereo amplifier with Class A/AB mode, high power transformer, transistors and capacitors. It’s a flagship amplifier which can be perfectly connected with AD-1PRE+ processor. 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-1PAChannels
2Power
2*300WG.W.
46kgTHD
≤0.008%
Class A Hi-Fi Amplifier
AD-1PA
Class A High-end Hi-Fi Amplifier
Strong & Powerful
Balance Circuit
Symmetric, differential input & differential BTL output.
It adopts full balance amplifying circuit to reduce interference
and provide better music playback effect.
Differential Circuit
Differential circuit can help offer wide dynamic range,
high-speed transmission, low distortion and good frequency response for analytical sound.
Amplifying Circuit
three-stage BTL differential output
It adopts three-stage BTL differential output via Darling transistors, which gives stronger driving and control of speakers.
Amplifying Circuit
three-stage BTL differential outpu
Class A/AB Mode Auto Switch
Class A /AB Mode
Auto mode: It will auto-switch to Class A or Class AB mode according to the machine temperature. It can also be adjusted manually.
Bi-wiring Design
For less interference, sound coloration and distortion.
Bi-wiring may produce an audible improvement
over standard single cabling, reduce magnetic interaction in the cable and result in better sound.
Hi-power Transistor
8 pairs TTC5200/TTA1943 high power transistors
It adopts well matched high power TTC5200/TTA1943 transistors,
which are very sensitive and work stably for high-speed switching even when the working current changes a lot , so as to reduce impact on sound quality.
180,000μF Capacitance
A total of 16 customized capacitors offer high capacitance
up to 180,000μF for better power supply.
1,200W Transformer
Well package, low noise & high power.
Separate Chamber Layout
For less interference and better channel separation.
Multiple separate chambers for each function area
work well to reduce interference and noise.
Wide Voltage Patents
Patent No.1: high and low voltage power
supply switch used for audio amplifiers
The designer sets a reference voltage inside compared with the amplified audio signal. It will output the corresponding level to the conversion control circuit. The conversion control circuit selects the on-coil according to the input level to realize the high and low voltage conversion, while preventing the sudden jump of the level and distortion that occurs in the Class H power amplifier. With this stable and reliable design, the whole machine gains high efficiency and better energy saving, improving the performance of the power amplifier.
Patent No.2: power supply switch
used for audio amplifiers
Basic circuit components for 110V & 220V conversion.
When the voltage exceeds the preset limit,
it can avoid misjudgment of power supply,
and prevent excessive voltage and damage.
The circuit conforms to voltage
in most countries and regions.
1W standby, more energy efficient.
External Design
It is classic black and white and all aluminum with sleek and uncompromising design which embodies its noble beauty. Just as our design concept: we render audio products noble.
More Details
Specification
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Parameters |
SNR: ≥108dB (A-weighted, balance input) ≥115dB (A-weighted, unbalance input) |
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Frequency: 10Hz-100kHz (+1/-3 dB, analog through) |
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THD: ≤0.008% (1kHz, normal working) |
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Channels: 2 |
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Output power: 300W Rms/8Ω (THD=1%, single channel, 1kHz) |
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Rated impedance: 8 ohms |
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Gain: 29.5dB±1dB |
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Class A static power consumption： 260W-300W |
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Class AB static power consumption: 70W-110W |
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Standby power consumption: ≤1W |
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| Net weight.: 43.4kg Gross weight.: 46kg | |
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Power supply voltage: ~110(60Hz)/~220V(50Hz) |
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Dimension: 444x294x449mm (WxHxD) Package: 614×446×606mm |
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AD-1PA
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THD
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2
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Dimension
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≥108 (A weighted)
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Net weight
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10Hz-100kHz(+1/-3dB)
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Impedance
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≤ 1W
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Channel separation
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260-300W or 70W-110W
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Gain
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300W（8Ω，THD=1%,1KHz)
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Application
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AD-1PRE+ preamp, TY-1CD CD player,
TD-8 floor standing speaker
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Accessories
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Tel : +86 020 3479 6146
Tel : +86 020 3479 7660
WhatsApp : +86 15812388120
Email : simi@tonewinner.com
Skype : live:.cid.25cc01fc1deaa80d
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