IWISTAO Earphone Amplifier HIFI Solo Bluetooth 4.0 CSR8670 32-bit DAC AK4490 Hardware Decoding APT-X

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HIFI Headphone Amplifier

IWISTAO Earphone Amplifier HIFI Solo with Bluetooth 4.0 CSR8670 32-bit DAC AK4490 Hardware Decoding Optical Inputs APT-X   Model No: WEIA-AK4490B This is a Bluetooth decoder with Bluetooth 4.0 CSR867 and DAC AK4490. The Bluetooth 4.0 version CSR8670 implemented digital signal transmission thought wireless function, the digital to analog conversion of...
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IWISTAO Earphone Amplifier HIFI Solo with Bluetooth 4.0 CSR8670 32-bit DAC AK4490 Hardware Decoding Optical Inputs APT-X

 

Model No: WEIA-AK4490B

This is a Bluetooth decoder with Bluetooth 4.0 CSR867 and DAC AK4490. The Bluetooth 4.0 version CSR8670 implemented digital signal transmission thought wireless function, the digital to analog conversion of audio output used a professional decoder chip AK4490 to play that the digital signal is decoded into an analog audio signal, and finally OP amplified the analog audio signal and output it.

 

AK4490 is a new generation Premium 32-bit 2ch DAC with new technologies, achieving industry’s leading level low distortion characteristics and wide dynamic range. The AK4490 integrates a newly developed switched capacitor filter “OSR Doubler”, making it capable of supporting wide range signals and achieving low out-of-band noise while realizing low power consumption. Moreover, the AK4490 has five types of 32-bit digital filters, realizing simple and flexible sound tuning in wide range of applications. The AK4490 accepts up to 768kHz PCM data and 11.2MHz DSD data, ideal for a high-resolution audio source playback that are becoming widespread in network audios, USB-DACs and Car Audio Systems.

 

At the same time, the unit is compatible with optical input, optical input devices can be connected to any other optical fiber output, such as televisions, set-top boxes, projectors, DVD player, CD player, sound cards and other digital computer. 

 

Features

1. Whole aluminum alloy casing.
2. Built-16M memory within CSR8670 chip
3. Adopted HIFI level op amp OPA2604 as output.
4. Adopted HIFI parts and components at signal input and output, such as 1% metal film resistors, capacitors, audio ELNA and Nichicon capacitors, Phil ips CCB film small Signal filtering capacitors, and gold-plated RCA audio output jack.
5. Adopted imported original ST regulator, and digital power supply used independent of the LM1117 3.3 V regulator.
6. Adopted independent hardware decoding AK4490 decoder chip.
7. With op amp socket, you can exchange your favorite OP according to your needs to use different styles HIFI op amp. Currently, the output chip is original OPA2604 op amp.
8. Built power and signal indication on the front panel.
9. Adopted independent external Bluetooth antenna with high sensitivity.
10. Automatic doors to receive the first optical fiber, has a good dust-proof.
11. With an input switch to easy switch two input signals, Bluetooth and optical. The two inputs, Bluetooth + optical input, you can connect any digital device family.
a) Bluetooth module Bluetooth signals --- Bluetooth digital signal decoding --OPA2604 --AK4490 op-amp output
b) Fiber optic signal --- AK4490 decodes the received data --- OPA2604 op-amp output

 

 

Specifications

  1. Bluetooth chip: British CSR8670 chip

  2. Receiving distance: Accessible straight-line distance of about 5-8 meters, it is not supported through the wall.

  3. Support SBC,   A2DPB, AVRCP, AAC, APT-X ( need your Bluetooth enabled devices support Apt-x also if adopt apt-x transmission)  

  4. Frequency response: 20Hz--20K Hz

  5. Output voltage of RCA: 1000mv

  6. Output Impedance: 100K ohm

  7. DAC: AK4490

  8. OPA2604 op amp output

  9. Optical Fiber Support: 24-bit 192K sampling

  10. Dimensions (L x W x H): 137mm x 115mm x 50mm

  11. Weight: 1kg

  12. Color: Silver

  13. Working voltage: AC 110V or 220V / 50Hz

  14. Accessories

         Power cord x 1

 

Package List

1 x IWISTAO Earphone Amplifier HIFI Solo

1 x Anttena

1 x Power cord

Shipping

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

Returns Policy

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.

Seller Guarantees

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.

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