JCALLY JM6 Pro USB C Type-C to 3.5mm Dual DAC CX31993 MAX97220 Digital Audio Portable decoding amp HiFi DAC Mobile Headset Adapter (Silver Red)

Short version: Absolutely perfect lossless sound on AKGs and Bose over the ear headphones while plugged into iphone 15 pro max and iphone 17 and other apple products. God they sound good when streamed with Apple’s lossless option. Long version: Who needs to know more? Well… we all base our decisions on numerous input. So here goes. There are a number of options with the DAC CX31993 & MAX97220. Many similar in the customer rating. After narrowing down the ratings to over 4, I then looked at how many ratings there were for each adapter and eliminated any of the choices that were under 100 reviews. Then narrowed it to the two with high ratings and over 200 reviews. Reading through each review posted, on both positive and negative. Then chose the JCALLY JM6 Pros. Had never heard of the brand before this. Just wanted to try them out. About the adapter: These make you feel like you are sitting in the studio where the music is being mixed. They sound like the day they were recorded. But, you have to have excellent headphones to take advantage of what it is capable of playing. What that means is, the song sounds as if you were there when it was made. Not a bunch of lost bits that muddy the sound. For example, I have a pair of really cheap $10 Sonys for light work that doesn’t need to be crisp. It also means you need to have a recording that hasn’t been transferred from device to device repeatedly, where bits could be lost or are streaming on a low quality. Be careful what you ask for though, because you learn which songs weren’t mixed well. In one of the Queen songs, “I want it all” I could hear a noise from when the guitar was added in the middle of the song for a solo. It was really harsh. It looks and feels durable. Colors are as represented. Have only tried it on apple products directly into the C connector. Did not use any adapters and used a limited number of headphones, because most of those I have are bluetooth. Functions properly with no need to do anything but plug it in to headphones and the device connector. Just turn the music on and it works fine with no additional work needed. There was plenty of power in the included MAX97220 to use in our studio monitor gold AKGs. In fact, did not have to turn the volume the whole way up to get quality sound. Told my recording musician and hypercritical audiophile spouse about them and what a pleasure it was to listen to assorted music. Thinking spouse would find something negative to say about the JM6 Pro USB C Type-C to 3.5mm Dual DAC CX31993/Max97220 adapter. Instead he was quite pleased with the device and asked for the link. The only negative was that you do not get the 3D spacial auditory experience that some of the bluetooth connections offer. Unfortunately, I do not have any powered spatial sounding headphones that allow you to connect via wire. I use the song “Baba O’ Reilly” by The Who to test that functionality on new headphones. You do get stereo sound without any issues though. That being said, there is some loss on all my bluetooth options (apple airpods 3 and 2, Bose Quiet Comfort in several models), which muddies the sound just a bit. Advantage goes to the adapter though for clean, crisp lossless sound. Will have to check to see if anyone has plug in sound with spatial options. I read some of the reviews that mention a different type of headphone I had not heard of before. Going to research those. The price of $17.99 full price I paid seems cheap when compared to the ridiculous amount of money spent on some of the headphones out there. And they sound better than any bluetooth headphones I have ever heard/purchased from the crispness of the sound. Finally, I do not like sticking earbuds in all the time. They have to be cleaned regularly and do block the ear canal. Which can lead to ear infections when there are trapped little infectious critters. Which means I have to regularly disinfect the earbud where it goes into the ear and that can be tricky business with the air pods. As they are not the least bit waterproof.

I am seriously impressed. I really wanted one with the CS43131 chip which has slightly better specs but more expensive. I wasn't sure whether to get one with the added MAX97220 amplifier with output of 60mW at 32Ω as I heard the white noise might be more pronounced. I am happy to report I heard no objectionable white noise. I would say this has a clean sound. I tested both on my smartphone and computer and I am happy with the sound. My phone does have a 3.5mm jack and I can differentiate the sound profile. This DAC sounds louder thanks to the added amplifier which will benefit higher impedance earbuds. The volume with 3.5mm jack was plenty for me so I had to bring the volume down with this DAC. The cable is very flexible so no problem with stiffness. The usb-c plug was sufficiently snug and will not move around and disconnect easily. The ends are made of aluminum and I did not feel any kind of warming due to the higher power amplifier.

I compared this product to the plain Apple dongle, and it sounded monumentally better. I own the Phillips SHP9600s, which is a super powerful pair of open backed headphones. With the Apple adapter it just sounded plain and flat it didn't have that 3D sound that these headphones have with a direct plug in. But with this adapter, I can listen to music from my phone that sounds almost just as good as connecting my headphones directly to a monitor. The audio is clear, wide, and crispy. Just spend $10 more than the apple one for this, it is so good!

EXCELLENT PRODUCT !!!

Its ok, I dont have to turn the volume up as high now which is nice but honestly Id save for something better, this will work until than though