APPJ 1601A Wi-Fi Tube Amplifiersearch

APPJ 1601A Wi-Fi Tube Amplifier

APPJ 1601A Wi-Fi Tube Amplifier

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All of the orders have been shipped and are now on the way to you! Once tracking is available, you will receive a confirmation email with tracking information. Please allow 24-48 hours for this information to update in the courier’s system.

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Bulk shipment received! Our warehouse team confirmed that the group's order arrived earlier and now they're working hard to break everything down into the individual packages for shipment to each of you. We will monitor their progress closely and update the group once all packages are sent out.

Expect another update from us on 9/27 or sooner if something comes up.

If you have any questions, please visit our Help Center (
Awaiting confirmation! We are still in contact with the vendor and just awaiting updated shipment estimates from them. We have a call scheduled first thing tomorrow morning and should get a bit more visibility in regards to when we can expect these in our warehouse.

Expect another update from us on 9/20 or sooner if something comes up.

If you have any questions, please visit our Help Center (
Thanks again for joining this drop! We have submitted the group's order with the vendor for the APPJ 1601A Wi-Fi Tube Amplifier and they are working hard to prepare it for shipment.

As soon as the group's order is ready at the vendor's location, they will send the bulk shipment to our warehouse in New Jersey where our warehouse team will break it up into individual orders and ship them. The current estimated ship date from our warehouse is 9/26.

We will keep the group updated throughout the fulfillment process. You can expect an update from us by the end of the day Pacific Time on 9/13.

If you have any questions, please visit our Help Center (
ArthurM we got a bunch of people here asking what DAC this thing uses and no response, I'm not going to even consider buying this without knowing what DAC is inside.

P.S. sorry to tag you in particular since I know your logistics but I don't know who to tag that would know the answer so maybe you can find out for us?
It's almost certainly some $0.02 chip, and it's on the 'WiiMu' module, which appears to be a knockoff of another companies chip. You should be able to find the chip and a PDF from the FCC with some google.

Plain and simple, it's not a device for audiophiles. There's no point even asking about the internals. It is a device for folks that are perfectly happy with the sound chip in their phone, or laptop, but want something that looks cool. There's no reason for this unit to even be in two pieces, and it is probably split like this to makes it look "more audiophile".

Not sure about their tube choice either...
"Science, betch!!!"
Caveat - Never seen one of these or even heard of such before this drop. The comments are conjectures based on the available photos, vendor ads, app reviews and app manual PDF.

Apparently you need an app, MUZO Cobblestone to control the Wi-Fi. But reviews currently place this app somewhere south of usable. There are broken features being reported.

It looks like you need a phone (Wi-Fi) or a PC (USB). Music files can be sourced from the internet (Wi-Fi), a thumb drive (USB), an SD card, or the PC. Not sure if you can use a USB hard drive instead of thumb drive, but I would think so. The phone can then be disconnected once the software is configured.

You can have several Cobblestone-enabled devices around the area without physical connections using the Wi-Fi. The Wi-Fi will also act a repeater to enlarge the coverage area. Bluetooth has shorter range and can only connect to one device at a time.
Found this on Aliexpress with more descriptions of this product but still not clear how to use features like SD and WiFi, perhaps source switching is automatic?,searchweb201602_4_10057_10065_10056_10055_10054_10069_10059_10058_10017_10070_10060_10061_10052_10062_10053_10050_10051,searchweb201603_2&btsid=b04d030e-ff5c-4254-a00c-d11884f067e7

I'm really disappointed in Massdrop for selling this shoddy thing. Don't they have any standards?
Shame it doesn't invoke my confidence, I could use something like this in my workshop. I'm thinking that at $175, it's probably more about making it "look" high-end, and less about actual performance. If it looks too good to be true...
Would this support the Chromecast format?
I think it's like that family guy episode, this contraption deosnt make u breakfast it just shoots you.
When you look back in the history books about why they United States will attack China, it will be for selling junk that looks like this to it's people. Lol at least fool everyone by jacking the price up and say that what you are selling is "groundbreaking". The Audiophile community should change their name block to "Sucker" if this thing goes through.
Do the tubes come pre-tilted?
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If you look at the white tube holding plastic, it is also slanted. It's just poorly made.
Agreed, they just need a better tube fluffer for the photo shoot.
Is it April Fool's already?
Can I get a silver one? And plz let me more information about DAC chip.
I like the way it looks like a robot.

More details about the DAC would be nice.

There's valid speculation about the interference, etc, but if it actually works well and sounds good, however, that's what it really comes down to.

So how does it sound? I've owned and heard plenty of tube amps over the years, only a few of them really sounded special.

At this point in my journey, I'm only interested in tube amps that really stand out. Competent or pretty good sounding are already covered on my end.

For the price, I doubt it rises to that level. But it could be a worthwhile product generally if it actually sounds good.