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IWISTAO HIFI Pure Tube Preamplifier Whole Aluminum Casing 6N8P Voltage Amplification 6Z5P Rectifier
Model No: WVPA2068
This is a Tube preamplifier with tube rectifier and pre-amplifier stage that is made of tube 6N8P as preamp and tube 6Z5P as tube rectifier.
from on .
The tube preamplifier adopted whole aluminum chassis, reasonable and orderly layout, power wires and signal wires do not overlap, effectively reduce the risk of interference, and the transformer outlet close and connect with PCB terminal also accordingly. It is work painstaking work to design this product really.... PCB designing for the chassis strictly follows the principles that a point grounding. Used 6Z5P tube as a rectifier and multi-stage filter and MOS transistor IRF840 as regulator, it provide a stable pre-clean power. 3.15V-0-3.15V tube filament provide by AC power, so the sound quality is more flavor, while the background noise of the unit is 4MV only.
1. Transformer is made of new high-silicon 0.5MM thick steel. High quality power transformer, 45W rated power, ensuring plenty of energy supply
2. Used a two-stage direct coupled amplification circuit extension, strong tube taste, wide frequency response and dynamic range.
3. Tuning with high-quality native Germany ERO coupling capacitance, two imported ruby or chemical capacitor as a filter capacitor.
4. Signal input used pure copper wire, RCA terminals is gold-plated. Lay the foundation for high-quality transmission of audio signals. Outlet material is nickel-plated brass.
5. Adopted precision metal film resistors, high signal to noise ratio, good stability.
6. Used Japanese ALPS 09 type volume potentiometer, no noise and longer life.
1. Input signal level: ≥ 0.25V
2. Frequency response: 10Hz ~ 80KHz (-1dB)
3. Total harmonic distortion: ≤ 0.9% (1KHz)
4. SNR: ≥90dB (A-weighted)
5. Tubes: 6N8P × 2,6Z5P × 1
6. Dimensions (L * H * D): 145mm * 90mm * 311mm
7. Weight: 3.5kg
Power cord x 1
我想查查彩票开奖结果1.Important: Import duties, taxes and other customs related charges all are not included into shipping cost . Buyers bear all responsibility for all extra charges incurred (if any).
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我想查查彩票开奖结果4.Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound. The shipping rate can be showed at the Checkout page. There are two options for shippig as below.
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我想查查彩票开奖结果You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
我想查查彩票开奖结果You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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我想查查彩票开奖结果 1. One year Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.2. Defective items MUST BE reported and returned within the warranty period (with the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY. You agree to all of the above-listed policies upon ordering on our store.