Massdrop x Eddie Current ZDT Jr.

Massdrop x Eddie Current ZDT Jr.

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Product Description
With great control of the entire frequency range and a far bigger sound than its small size suggests, the Massdrop x Eddie Current ZDT Jr. rivals tube amps in the $1,500 category Read More

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RyuBlade94
1
Mar 22, 2021
I would really want to buy this.. when was the last drop for this?
beginering
128
Apr 26, 2021
PopZeus
339
Mar 15, 2021
Bought this second hand, in great shape (knock on wood) and it's my favorite amp. I'm using stock tubes right now and love the sound, look and overall footprint.
A community member
Aug 23, 2020
Does anyone know if another drop of this is coming?
Tex1954
86
Aug 25, 2020
A community member
Aug 25, 2020
Hopefully it starts freezing soon haha. Thanks for the awesome link :-)
JimDijkstra86NL
2
Apr 14, 2020
Another drop on this one please. Got 5000+ interested folks of the price is low enough.
Tex1954
86
Apr 21, 2020
Your best chance at a amp similar is this. Other than that you might be able to pick one up second hand. https://www.superbestaudiofriends.org/index.php?threads/shortest-way-sw51-amp-impressions-simple-set-amp.8042/page-12
(Edited)
dncnexus
80
May 13, 2020
Unfortunately the owner of Eddie Current is shutting down shop so I don't think we will ever get another drop of these. I am also lookin for one, but will need to try and find a used one.
WildChinoise
237
Feb 8, 2020
Starting the tube rolling adventure. I think the stock 6ZH1P provided lots of low end bass, which bled a little bit into the mids. The bass and the low mids sometimes were a bit bloated/muddy. Just a bit, but it bothered me sometimes. The treble was harsh and piercing/sibilant enough, that sometimes I turned the volume down a bit. The stock tubes also seem noisy. I hear random static noise artifacts. I do listen at higher volumes than most people. I like the ZDT Jr, but I did expect to swap tubes and explore all those other tubes out there. ATM, I've installed Western Electric 6AK5 NOS vintage tubes. Less than ten hours in on these tubes, so they are probably not all the way burned in. The WE 6AK5 provides a much improved sound over the stock tubes. There is slightly less bass thump. The bass is equally extended, but more detailed and less one note thumpy. Male vocals are clean and clear. Gone are the bloated and muddy low mids. Upper mids and female vocals are also clearer and detailed. Its easier to hear the different voices in a KPop girl group (LOLS). With the stock tubes, the voices kind of blended together and they were hard to tell apart. The treble is a bit more extended, more detailed, without harshness or sibilance. I can listen at really high volume level without feeling that my ears are getting stabbed with a forks. Quickly, I think sound stage is wider, maybe deeper. Imaging is pretty decent, but my favorite music is not so demanding in that way. There are less of those random noise artifacts. I am thinking that rolling the 6N24P might be more helpful in that regard. It does seem to be harder to find 6N24P equivalents. I did buy some more of those Russian NOS tubes, just to have backups in storage. Listening to a pair of Massdrop X Sennheiser HD 6XX headphones, on the Hi Z output, the volume knob was sometimes over at the 2-3 PM position for some songs. The 6XX became exciting and dynamic. There is some decent bass and the treble is more lively and more extended. I had always felt the 6XX was rolled off and were just a dark, dark headphone. I guess those comments about 6XX being hard to drive are very true. My recently arrived EMU Teak, (low Z output) sound really good with the ZDT Jr. I usually have them on 9-10am on the volume dial. But I find that the Fostex family (TH-X00 Purpleheart, Ebony, Emu Teak) just sound good with everything. Overall, the ZDT Jr has a very energetic and dynamic presentation with the WE tubes. All in all I would definitely recommend rolling a pair WE 6AK5.
WildChinoise
237
Oct 12, 2020
I listened to the ZDT Jr with WE 6AK5 for 8 months. I just didn't feel any need or urgency to swap them out. I've rolled in Mullard 6AK5W. It's a Mil Spec version of the 6AK5. The initial impression is that the bass slams hard, detailed and extended. Mids are clear and female vocals are sweet. Highs are are clear and sharp, but not piercing. The EMU Teak, (low Z output) still sound really good with the ZDT Jr. The Mullards are a bit hard to find, but GE, RCA and Sylvania variants seem to be pretty common.
HAL__9000
8
Feb 6, 2020
Does anyone know what a fair price would be to sell one of these on the secondhand market? Assuming it's in perfect working order?
Tex1954
86
Feb 9, 2020
It listed for 400 so I wouldn't pay much more.
rmjones25
1
Feb 6, 2020
Bought one second-hand and enjoyed it for a few weeks. Then it quit powering on (caps were charged, LED not turning on). I traced it back to a short in the circuit board. After drilling that out, I'm still having problems. Anyone have any ideas on what the main transformer output voltages should be? I think that might have fried due to the short.
Tex1954
86
Feb 9, 2020
I would join the SBAF forum and ask. It actually might've been discussed though. https://www.superbestaudiofriends.org/index.php?threads/massdrop-x-eddie-current-zdt-jr-official-thread.5408/
(Edited)
Gurbakhshish
203
Jan 14, 2020
Mine works a lot better once i switched 6N24P with an ECC89. ECC89 is much cleaner tube when it comes to noise or microphonics at a cost of slightly lower amplification but this amp has ton of power so now instead of being under 25% i am at 35%on the volume knob
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BTW i have the original one with humming which goes down with this tube as well
(Edited)
tinamou62
81
Jun 15, 2020
Thanks! I somehow have never noticed that screw.
GideonWoo
13
Jun 21, 2020
Anybody have any extra ECC89 tubes they would be willing to part with (I'd ideally like to buy 2 pairs, one for now and one for spare)? I've been looking all over the internet for them and can't find anything other than the Mullard ones that cost quite a bit (and they're all shipped from EUR so the cost of shipping is also crazy).
(Edited)
Lyer24
36
Dec 26, 2019
ZDT Jr. died randomly while playing music, doesn't seem to be outlet or power cable issues since those all work as normal with other amps I have lying around, leading me to suspect something went poof within the ZDT Jr. itself. Not sure about warranty as this is one of the earlier units (searching for receipt), but any recourse available for unfortunate morons such as myself, @Drop?
komashita
7
May 9, 2020
Hi Lyer, did you managed to find out the cause of the blown fuse? I had the same problem. Replaced and blown again.
Lyer24
36
May 9, 2020
Nope, plan to send it off to a competent technician as soon as I'm able, which is going to be after quarantine lifts here... whenever that might be.
fungxkevin129
17
Dec 2, 2019
Hi, I am wondering if anyone is pairing the ZDT Jr. with the Airist R-2R Dac? In the description, it says the ZDT Jr. handles input voltage: 0.25–2 V, while the Airist outputs 2.5V. Will this result in any clipping/distortion problems? Thanks a lot!
Tex1954
86
Dec 7, 2019
Add a HD6XX & that's what I listen to a lot. No clipping or distortion. I use a squeezebox player and LMS server it works great. I would recommend the Artist R-2R with the ZDT Jr.. You might read klyrish mid page. https://www.superbestaudiofriends.org/index.php?threads/massdrop-x-eddie-current-zdt-jr-official-thread.5408/page-41
(Edited)
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