Transaudio D9PRO 150W/8Ω 300W/4Ω Power Amplifier Based on Circuit Open Box 🔥🎶

Up for sale is the Transaudio D9PRO Stereo Power Amplifier, an incredible high-fidelity component designed for serious audiophiles.

PLEASE NOTE (Replica Disclaimer): This unit is a meticulously engineered, premium replica/clone based directly on the world-renowned DarTZeel NHB-108 circuit architecture. It delivers a massive portion of that ultra-high-end legendary European sound signature—characterized by a warm, soft, liquid midrange and effortless speaker control—at a fraction of the original five-figure retail cost. It is branded and manufactured by Transaudio, utilizing premium audiophile components to achieve an incredibly silent background, massive soundstage, and outstanding dynamic range.

 

 

 

Key Features & Design Highlights

* DarTZeel Inspired Topology: Built without global negative feedback, maintaining a completely natural, non-fatiguing musicality that is incredibly pleasant to the ear.

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* Dual-Mono Architecture: Features entirely independent power supplies for both the left and right channels, ensuring ultra-high channel separation and a massive stereo image.

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* Premium Heavy-Duty Build: Housed in a gorgeous, heavy CNC precision-machined full aluminum enclosure.

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* High-End Components: Packed with a massive 800W transformer, 12 audiophile-grade BC large electrolytic capacitors, KOA resistors, and 10 pairs of 1% precisely matched ON Semiconductor MJL3281/1302 transistors (5 pairs per channel) for immense current delivery.

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* Advanced Protection: Equipped with built-in soft-start functionality and comprehensive speaker protection circuits to safely preserve your gear.

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Technical Specifications

* Output Power: 150W RMS @ 8Ω per channel | 300W RMS @ 4Ω per channel

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* Input Sensitivity: 1.66 Vrms

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* Input Impedance: 22 kΩ

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* Damping Factor: 800 (allows effortless control over demanding or low-efficiency speakers)

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* Static Power Consumption: ~120W (runs warm due to high Class-A bias design)

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* Dimensions: 450 mm x 380 mm x 150 mm

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* Unit Weight: Approx. 19 kg (21 kg shipping weight)

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Audio Precision (AP) Verified Test Parameters

* Signal-to-Noise Ratio (SNR): 124.6dB

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* Dynamic Range: 124.7dB

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* Total Harmonic Distortion (THD): 0.0020%

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* THD + Noise (THD+N): 0.0097%

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* Channel Gain: 26.6dB

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* Frequency Response Bandwidth: ±0.046dB

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What’s Included:

* 1 x Transaudio D9PRO Power Amplifier

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* (Power cable not included unless specified)

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Condition Note: The amplifier is in excellent functional and cosmetic condition. Will be securely packed in heavy-duty packaging due to its substantial 21 kg shipping weight.