100 In stock
HIFI Headphone Amplifier
HIFI Headphone Amplifier Portable Ultra-Class A (Class AA) Circuit OPA2604 plus LM4562 320Mw 16 ~ 300 ohms Lithium Battery Ultra-thin Body
Model No: WETA-BAA200
This is a portable headphone amplifier, personalized design, all aluminum casing, ultra-thin body. Circuit structure used a ultra-Class A (Class AA) circuit, because voltage amplifier stage of Class AA headphone amplifier is equivalent to a no-load state, no matter how the load followed by the headset, it will not affect the voltage amplifier stage of work, which is common Amplifiers can not achieve that status. As results, it will make a very real interpretation of the music, space and very good positioning performance, and efforts to extend the sense of sound performance; it is just a little weird. In addition, we use HIFI grade components and process to make it, and bring a better listening experience.
Selection aspect of the op amp, we used OP IC OPA2604 plus LM4562 match, we passed several tests comparing those match, we find that they can complement each other; If the preamp use OPA2604, and power stage use LM4562, we tested them with a 20KHz square wave, which output waveform distortion is very small. From the listening sensation, LM4562 relatively straightforward, OPA2604 more beautiful!
Audiophiles had asked me, or whether the device or circuit determines the sound quality? In our experience, the answer is, circuit design, technology and debugging is more decide sound, HIFI devices, op amp selection and personalized tone tuning more define Timbre. It is so-called HIFI to focus on quality, high-fidelity idea. The HI-END is integrated personalized tuning philosophy into the trend to the highest HIFI level.
1. Personalized design, all-aluminum casing, and ultra-thin body.
2. Ultra Class A circuit design with circuit board Immersion Gold process, sophisticated technology.
3. HIFI "Sibi" tantalum capacitors, Phi lips electrolytic axial capacitors, Red WMA audio capacitors, gold-plated 3.5mm headphone jack.
4. Gold-plated op amp socket for easy replacement of different styles of op amp.
5. Perfectly headphone protection circuit.
6. 1200MAH rechargeable lithium battery, up to 12 hours of battery life (different impedance headphones, different endurance).
- Output power: 320mW (at 32 ohm)
- Headphone Impedance: 16 ~ 300 ohms
- Total Harmonic distortion: <0.0005%
- Frequency Response: 20Hz ~ 20Hz
- SNR :> 110Db
- Built-in rechargeable lithium battery 1200mAH
- Weight: 0.5kg
- Dimension (L * W * H): 100 mm * 61mm * 13mm
- Color: Black / Silver
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, ePacket or DHL Global Mail
B. Express Shipping: EMS, DHL, UPS , or Fedex. For faster shipping and smooth transaction, we will change the shipping company among them
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.