100 In stock
HIFI Headphone Amplifier
1. USB digital receiver used a sophisticated CM6631A asynchronous receiver chip, which had been used by many players to challenge high-class turntable, so it shows its qualities. Our self-developed firmware to make system be more stable, CPU occupancy rate is less than 10% (I3 processor), while the perfect support for all frequencies 24bit 192K or less, including more difficult frequencies like as 88.2K, 176.4K also be the perfect support.
2. Decode chip adopted a ES9023 chip that is similar as ES9018, and this piece chip at 3.6V power supply can have 2Vrms level output, ES9023 use Ultra patented technology line flow (Hyperstream) architecture internal and time-domain jitter elimination technology, dynamic range reached 112dB. No chip is better than ES9023 under this USB-powered.
3. Headphone amplifier section is fascinating, used HD 1969 pure A circuit, popular for half a century, today there are still countless audiophiles to relish playing, also shows her charm from this aspect. You can easily push 64 ohms or less (or even 120 ohm) headphones. Pure Class A circuit born on the resistant of USB-powered clutter, while the current drive capability is strong and full load output distortion is no deterioration, rich sound with even harmonics make extremely smooth! Absolute vacuum tube rich flavor, and resolving power, dynamic is very good, completely abandoned harsh digital sound.
4. As USB power supply directly, it will have a negative impact HIFI products normally. But for the product, CM6631 has been added a level series regulator. Furthermore ES9023 used a shunt regulator that has the best performance, while used the best 1969 pure A headphone amplifier that has a high born voltage suppression ratio , also for this reason, many audiophile like to use switching power supply for HD1969.
1. Input: USB port, support for XP, WIN7, win8, Mac systems to support ASIO, Wasapi.
2. Line Output: RCA audio ports 2Vrms
3. Digital Output: SPDIF 24bit 192K
4. Output: 6.35 3.5 headphone dual-port 32 ohm output (80mW); 64 ohms (40mW); and provides an analog RCA outputs.
5. Sampling frequency: 44.1K-192K
6. Sampling bit width: 16-24bit
7. Weight: 130g
8. Dimensions: 108mm * 80mm * 27mm
9. Power supply: USB Interface
10. Accessories: 30cm high-quality USB cable with fully shielded
1. Interface Description:
l USB port connected to PC, it will come out an extra sound card in the system after installing the driver
l 6.35mm and 3.5mm headphone port can directly drive 100 ohm headphones or below.
l There are 2 groups of RCA ports on the back, red and white at both ends is the line analog outputs, you can connect multimedia speakers or amplifier.
l Yellow RCA port for SPDIF digital coaxial output, decoders and other devices can be connected.
2. Driver and software installation
l Please download CM6631A at this address driver, foobar2000, ASIO plug, Wasapi plugin packages address: http# //pan.baidu.com/s/1eQGe730 (copy this link as used : instead of #).
l Connected the unit, installation CM6631 driver.
l Install compressed packages within Foobar2000
l Install the ASIO and Wasapi plug of foobar2000, both plugs are very large impact on the quality, it is recommended to install. Foobar2000 menu select File> parameter options, pop-up dialog box, and then on the left select the "Components", point the Install button to select unpack the archive after the ASIO, Wasapi component files.
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, Special Route.,etc. 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.