AD1865 decoding finished board r2r nos mode DAC 24bit 192K Decoder | Integrated Circuits

start

10MHz OCXO Crystal Oscillator Clock frequency refe...US $46.49 100A/40A lcd display Digital Double Pulse Encoder ...US $13.94 15 minutes adjust DC 24v Infinite Cycle Delay Tim...US $3.70 2S 7.4V 8.4V 2 CellS 8A Li-ion Lithium Battery 3.7...US $1.20 NE555 Pulse Module LM358 Duty Cycle And Frequency ...US $2.41 High-Power 40A 4000W Soft Start Power Supply Board...US $10.90 6W+6W Dual Channel Bluetooth Receiver Stereo Audio...US $7.06 Battery Monitor DC 10-120v 50A digital coulomb met...US $34.40 Micro Mountaineer transmitter receiver CW QRP Ham ...US $14.41 LCR ESR Meter Mega328 Digital Combo Transistor Tes...US $14.49

end

 

 

AD1865 decoding finished board r2r decoding nos mode DAC
    　   Description: Features: 

The latest version, the sound quality is more HIFI

The debugged finished board can be operated normally by connecting the transformer.

 

The format supports up to 24bit 192K, the transformer is recommended to use EI type, and it is required to output a group of about 7V, two groups of 13.5V, and the current is about 500MA. The power of the transformer is about 25-45 watts. The board size is 90mm*97mm (half slap)

 

The characteristics of this decoder board: 1, the very playable little guy, the volume is only about half a slap. 2, the materials are very sophisticated, using the five latest high-performance LDO, the price is very expensive, do not hesitate to strengthen the power for the sound. 3, using ak4118 to receive, has the industry's lowest Jitter, the decoding chip uses the American AD company's humming R2R decoding chip AD1865 (known as the vinyl chip), and it is the best sound from a lot of chips through the actual audition comparison. Only choose. 4, did not use the general use of digital filters, using NOS way to decode, the sound is very characteristic, by reference to the famous machine line and many practice tests, although the NOS method we also did the sound is fine, but the feelings and simulation The feeling is better, the feelings and the sound field are more realistic, the sound style and the general non-R2R and non-NOS way of decoding are very different styles, worth the experience. 5, especially designed and optimized for the ad1865nos mode iv and lpf circuit, abandon the ad1865 internal built-in op amp, using current output mode, the effect is better.

 

Specific hearing sharing: 1, the sound has a similar analog TDA1541A, but the frequency response is significantly wider than the TDA1541A, high and low frequency extension is very good, good definition, no paste, sound transparent, details, although no OS sharp, dynamic ratio The OS is slightly lower, but it is not bad enough. 2, the medium frequency texture is very good, there is advanced PCM1704 decoding that graininess (note that it is not thick and rough), the sound is delicate, although it is NOS but not rough and rough; 3, the feelings are very good, the feeling is more real than the OS way, The sound field is also very real and different from the OS. I personally prefer this style. 4. The analysis power will not be very high or low. Just right, it is not easy to be tired. 5, there is a strong sense of simulation, no digital flavor, very similar to the sound and texture of advanced tape. Very resistant, not tired of listening for a long time. 6. For friends who like to listen to saliva songs, this is an ideal choice. Because of the special design, there is no tooth sound in listening to the songs. I don’t even like the songs that I usually don’t like to listen to saliva songs.

 

Other people Evaluation

At present, the original op amp is op132+op42. I put the output capacitor straight through, the sound effect is satisfactory, and the realism of nos r2r is very powerful. Two small sealed ring cows were used to raise the sound at both ends, and the owner prefers the vocals to use the E cow. Next, change the op amp to see if it can improve some resolving power.

The sound of one connection is good. recommend

Just opened the sound, the sound does have the characteristics of vinyl, for the old song, the simulation of the lossless music interpretation is good, wait a while to comment. The circuit design symmetrical originals are beautifully arranged, and the seller is very careful on this board.

Very good decoder, bought at the beginning because of its appearance, the line design is very satisfied! After the installation, the listening feeling is very good. The vinyl record is very strong and has a taste of ancient times. But for me personally it feels like a cup of coffee sugar is a little too much. I prefer to be lighter! Later asked the seller, he said that I want to remove the two coupling capacitors. After the removal, the sound is much fresher, not so strong! Between listening to different types of songs, you can have both! If it is purely listening to people, don't remove the two capacitors, so the sound will be a lot sweeter! Make you sweet!

Thanks to the store for giving them the opportunity to listen to great music. With a special transformer works well.

The indicators and sounds are good, soft and lingering, not warm, very resistant!

 

[Additional comments] First, I used a discrete module and felt too thick. Later I switched to Philips 5534, which is very satisfying.

In line with the seller's description, very careful voice, listening to the morning, I feel very cool, changed my impression of 1865, delicate and unremarkable, sound field is big, full of charm, good listening, cost-effective

Package Contents
100% Brand New
1 XAD1865 decoding finished board r2r decoding nos mode DAC


 

  Shipping :

 

Country

Delivery Time

Working Days (not including holiday) 5-7 8-10 11-14 15-19 20-22 >25 Working Days + Saturday + Sunday 5-9 10-14 15-20 21-25 26-30 >35 United States Rate (item arrived)     9% 50% 21% 13% 7% Refund or Resend United Kingdom Rate (item arrived) 10% 62% 20% 3.5% 4.5% Refund or Resend Australia Rate (item arrived) 23% 50% 13% 8% 6% Refund or Resend France Rate (item arrived) 1.5% 20.5% 45% 23% 10% Refund or Resend Germany Rate (item arrived) 5.5% 25% 35% 19% 15.5% Refund or Resend

Canada

Rate (item arrived)

0.0%

44%

35%

18%

3%

Refund or Resend

Spain Rate (item arrived) 1.5% 25% 50% 14% 9.5% Refund or Resend   Payment : 

 

  Feedback
We maintain high standards of excellence   and strive for 100% customer satisfaction!  Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral  or negative  feedback, so that we can satisfactorily address your concerns.
We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help.We will try our best to solve any problem.
If you have any questions, please feel free to contact us by ebay message.
We will reply you within 48 Hours.
    Refund&Reship: If you are dissatisfied with our item or service, then please follow the good eBay practice to contact us by ebay message before leaving
any feedback. We are committed to resolve all issues in a friendly and satisfactory manner.
We always reply to ebay messages within 1-2 business days. If you do not get a response from us, then please check your ebay message. we only reply ebay message, no send email.
Original and return shipping fee will not be refunded or reimbursed under all circumstances. You must agree and acknowledge this term if you bid for this item. Therefore, please do not complain about having to ship back at your own expense.


Contact US::

If have any question, Please contact us by ebay message(no e-mail). Reply within 24hours.
We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you.
We try our best to reply to your emails as soon as possible, however, due to high volume of daily incoming emails and time zone difference,
we may not be able to reply your emails immediately.

 

---