100 In stock
HIFI Transistors Power Amplifier
IWISTAO HIFI Amplifier 2x25W ClassA FET Single-ended Stereo Power Amp Whole Aluminum Casing Design With upc1237 Protection Black
Model No: WHFTA-PassGold
It is a pure class A single-ended stereo power amplifier, which is a very high degree of completion HIFI amplifier, its sound is silky smoothness, also it is too appealing when you listen to the sound of strings and human voice with the unit, and this is definitely a warm sound amplifier, but unlike a little dim sound of tube amp, its sound is warm and detailed, while low dive control and damping is also very perfect.
As its 25W output power at 20 to 30 square meters or below space, both with book shelf speakers or floor speakers, it will have a good performance. Remarkably, its signal to noise ratio control very well, you will hardly hear a little noise when you put your ear to the speaker at deep night, although its power is increased to maximum, but the circuit design more rational, so it is still have higher SNR.
1. Basic faithful to the classic PassA30 circuit, which, with respect to the sale of several million PassA5, merely reduces the output power, its structure is completely different, showing the maturity of its circuit!
2. 350W power supply high-quality Toroidal Transformer, using 4 pieces HIFI RM 15000uf filter capacitors as CRC, total filtering capacity is 120000uf.
3. The most important is to add upc1237 speaker protection system, switch absolutely no impact sound while performing midpoint of DC protection, to prevent damage and burn your expensive speakers due to the amplifier circuit.
4. Three pairs of matched large power FET tubes expansion flow in parallel, to ensure the driving force.
5. Add a midpoint trimming circuit at differential input, which can correct the problem of midpoint offsetting at some extent.
6. The finished unit with about 4KG heat sink, while it is whole aluminum design, this benefit other parts of the casing become heat sink also in addition, so that the total heat dissipation area greatly increased.
7. Combined APLS 27 potentiometer into the amplifier
8. Adopted 4 channels signal inputs, you can select the input from the knob on the front panel.
1. Maximum undistorted output power: 2 x 25W (at 1KHz continuous power without distortion).
2. Frequency Response: 20Hz - 20Khz
3. Distortion: <0.01% (1KHz sine wave output 20W)
4. Input sensitivity: <500mv.
5. Output Impedance: 4 - 16 ohms
6. Amplifier voltage gain: 30 times.
7. SNR:> 103dB
8. Working voltage: AC110V or 220V / 50Hz
9. Maximum power consumption: <180W
10. Size (W * H * D): 284mm * 80mm * 308mm
11. Weight: 10.5Kg
12. Color: Black
Power cord x 1
For the 110V version, the lead time is 10 business days. please note if you want to buy this version.
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).
2. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address. We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
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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.).
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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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.