100 In stock
Bluetooth Tube Amplifier
IWISTAO Bluetooth 4.0 Tube Amplifier FU50 Power Stage Class A Signal-ended Headphone Amp HIFI Audio 2x13W 6J8P Pre-amplifier 5Z4P Rectifier
Model No: WVTRY-FU50
The amplifier support Bluetooth 4.0 technology, you can connect it with your Bluetooth enabled devices to play music .
1. Tube 5Z3P as rectification, which can extend the life of the power tubes FU50 when effectively the rectifier buffer added to high voltage due to maximum withstand voltage of 800V of FU50
2. With four sources for relay switching, user-friendly, no longer swap signal cables as multiple sources frequently.
3. Preamp tubes adopt tube 6J8P for FU50 voltage gain; let the sound tube taste thicker, superior performance played.
4. Output transformer adopt high-quality Japanese annealed steel Z11 chips, thick oxygen-free copper enameled wire wound, compatible with 4 ohms and 8 ohms impedance output; power transformer adopt annealing silicon steal chips for efficient, high efficiency, small heat.
5. Internal high voltage filter capacitor adopt original Sam sung, capacitive coupling capacitors are used HIFI grade one to ensure that the super good quality!
6. Gold-plated crystal terminals, reducing the contact resistance; high-end stainless steel illuminated power switch.
7. The unit adopts standard triode and standard connection. The sound is similar with tube 300B, it is also known as the small 300B, mellow sound and not tired it for a long time when listening, low-frequency elastic and penetration, transparency of the human voice is very high.
8. With a headphone amplifier output jack.
How to fix FU50 tubes to the amplifier
Please fix tubes FU50 as photos showed below. Don't fix them the wrong positions, otherwise the tube will be damaged.
(This photo as reference only above)
1. Rated output power: 12W × 2
2. Frequency Response: 20Hz - 25KHz
3. Total harmonic distortion: <1% (1kHz)
4. Input Sensitivity: 500mV - 2000mV
5. Input impedance: 100KΩ
6. Output impedance: 4Ω, 8Ω
7. SNR: > 89dB
8. Dimensions (W × H × D):320 × 60 × 280mm
9. Weight: 13.8Kg
6J8P × 2
5Z3P x 1
FU50 × 2
Power cord x 1
multi-layer high-strength corrugated carton and foam plastic inside
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).
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.
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.
A. Standard Shipping(≤2KG): The Post Registered Air Mail, ePacket 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 them
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.).
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.