IWISTAO HIFI Transistors Preamplifier Tone Adjustment Tremble Midrange Bass Vacuum Tube Taste With Remote Control Bluetooth 5.1 Silver Front Panel 110V/220V

Model No: WHF-TRPRE300S

This is a high-end preamplifier with transistors, designed with a mature and stable low-distortion pure amplifier circuit optimized and adjusted multiple times for the ultimate sound experience. The unique circuit design provides different tonal colors and is specially equipped with tremble, midrange, and bass tone circuits, allowing you to adjust different tones according to your preferences. Additionally, it includes a direct through function that uses a pure amplifier circuit to restore the real tone if you prefer a more natural sound.

Our preamplifier boasts a high-end HIFI design with independent amplifier circuits that are separated from each other, ensuring no interference between boards. The specially designed pure Class A power supply system enhances the sound, making it more mellow and beautiful. With its balanced 6 op-amp circuit design and independent motherboard, the preamplifier provides accurate amplification for the sound width of the entire machine and weak signal capture.

Our preamplifier features a HIFI power supply voltage regulation management system with custom-made toroidal transformers, audiophile-grade pure copper wires, and center potting and outer shielding treatment, making it anti-vibration, low noise, low internal resistance, and anti-interference. This improves the signal-to-noise ratio and timbre. It also includes a pure Class A low noise power supply voltage regulator circuit, ensuring low internal resistance and beautiful sound, excellent signal-to-noise ratio, ripple characteristics as low as microvolts, excellent dynamic response speed, and a total of 20000UF power filter energy.

Advanced Version (with remote control)

Bluetooth Version (with remote control and Bluetooth)

Details

Features

1. The preamplifier comes in an all-aluminum refined chassis, with a choice of silver-white or black panels to match different styles of pure power amplifiers.
2. The body is uniformly black, making it elegant and noble, and it will look great alongside any imported famous machine.
3. The preamplifier features a wealth of input interfaces, including balanced input and RCA input, making it easy to connect to post-stages of different interfaces.
4. The low-distortion full-balanced input is effective in anti-interference, making the sound more pure and transparent. Gold-plated audio terminals provide low resistance, good conductivity, excellent tone, and are not easy to oxidize.

5. It also comes with Bluetooth version, equipped with Bluetooth 5.1 version Qualcomm QCC5125 chip, which supports almost all current Bluetooth lossless transmission format: high level of SBC AAC APTX LDAC, and equipped with a separate Bluetooth decoding PCM5102 for high-quality output.

Specifications

1. Input voltage: AC110 or AC220V 50-60HZ

2. Magnification: 6 times

3. input impedance: 50K ohms

4. Signal-to-noise ratio: 110dB

5. Harmonic distortion (THD): ≤0.001% (1kHlz)

6. Frequency response:10Hz-30K1z (+0.5db)

7. Input and output interface

power cord x 1,
remote control x 1