48 In stock
Tube Amplifier Output Transformer
IWISTAO Passive Preamplifier Kit Unbalanced to Balanced/Balanced to Unbalanced/RCA to XLR/Signal Transformer
Model No: WHFTR-BV02K
When you use your mobile phone or computer to listen to music, you will find that the sound is small, the details are small, and the dynamic is thin, their sound quality aren’t full and pleasant like as CD player, decoder. This is because the output value of mobile phone and computer is 0.2-0.5V audio voltage only, while the existing power amplifier is generally designed with an input voltage of 0.75-1.2V. This intermediate voltage difference requires a 2x amplification boost value. Now the 1:2 signal boosting transformer solves this disadvantage.
1:2 signal boosting transformer, balance transformer, and inverter transformer, that is a passive boosting transformer developed to compensate for low signal output of computers and mobile audio sources in the existing market. Make the ordinary sound source close to the effect of CD player signal one. And, if CD player connected the signal boosting transformer to power amplifier, its sound will be even more powerful. After the audio signal pass the boosting transformer and amplify, it will output a stable impedance, it will lead to its signal transmission is fidelity, and its sound field positioning is better!
Here, we provide a set of kits for you assembling this passive preamplifier. There is a switch for switching XRL or RCA output.
Suitable for: mobile phones, computers, TVs, iPad, tablets, players, MP3 cd players, etc
The kit includes:
- Signal transformer x2
- XLR connector x4
- RCA terminal x4
- Metal case x1
- Switch x 1
- Size (W*H*D): 160mm*110mm*90mm
- Bandwidth: 20Hz-60KHz/-0.5db (measured by 48k load ap audio meter)
- Weight: 1.2kg
There are two version as below.
1. No assembling version --- This kit isn’t assembled. After buying, it will be assembled by buyer.
2. Finshed product vesion.
You may select which one you will want to buy.
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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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.