59 In stock
HIFI Transistors Power Amplifier
IWISTAO Single-ended DC Pure Class A Warm Sound Gold Sealed FET Finished Power Amplifier Post-stage Amp Pass ACA for Electronic Frequency Division
Model No: WHFA-PASS5WECR
The PASS ACA single-ended DC class A power amplifier with gold-sealed Field Effect Tube is designed to provide a warm and high-quality sound suitable for electronic crossover power amplifiers. Its characteristics include a black background and silent operation, and it has an output power of 5 watts which is similar to that of tube amplifiers.
This machine is a pure post-stage design and requires a pre-amplifier for optimal performance. Without a pre-amplifier, the sound may be small, and the low frequency may lack momentum.
The PASS ACA power amplifier has gained popularity since its launch, and has received positive feedback from enthusiasts for its extraordinary sound quality. It provides a soft and durable listening experience, especially when listening to vocal albums. The machine has moderate heat generation, with a quiescent current of about 1A, and can survive the summer with a radiator of about one kilogram.
1. The circuit of the entire machine is simple and clear. It adopts a single-ended Class A form with good sound quality. Although the output power is not as high as other amplifiers, its thrust can surpass the normal IC integrated circuit with a nominal value of over 50 watts.
2. The circuit board is made of 1.6mm FR-4 board.
3. The resistor is made of 0.5W DALE or carbon film, and the 4 emitter-grade resistors are Panasonic off-white 3W resistors used by PASS.
4. The two capacitors that affect the sound use SPRAGUE 82D10u 3300UF.
5. The output power tube adopts the American Harris IRF250 gold-sealed field effect tube, which has a large output current, low internal resistance, and extraordinary sound quality.
6. The transformer uses an imported Z110.35 hand-wound fever 120VA EI cattle, and the output voltage is double 20V, which is quiet and vibration-free. The temperature of full power operation is just warm.
7. The power supply part uses ON series 6A large wheel tube, and 4 pieces of 4700uf UCC capacitors.
8. The background noise is very low and can’t be heard even close to the speaker, resulting in a full black background.
9. The solid all-aluminum chassis makes full use of the entire space.
1. Output power: 6 watts.
2. Magnification: about 5 times.
3. Voltage gain: 14dB.
4. Input impedance: 10K ohm.
5. Dimensions(D*W*H): 260mm*222mm* 90mm.
6. Weight: 6kg.
7. Quantities: 1 piece
8. Accessories: power cord x 1
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.
3. When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
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.
A. Standard Shipping(≤2KG): The Post Registered Air Mail, USPS/ePacket, PostNL, Singapore Post, or DHL Global Mail
B. Express Shipping: EMS, DHL, UPS , or Fedex, Special Route.,etc. For faster shipping and smooth transaction, we will change the shipping company among themC. Economy Shipping: China Air Post Mail / Parcel, Hongkong Air Post Mail / Parcel, or shipment by sea etc
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).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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.