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SMSL SP100 Tube Headphone Amplifier

SMSL SP100 Tube Headphone Amplifier

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268 requests
46 Sold
Product Description
The SMSL SP100 Tube Headphone Amplifier is the perfect solution for anyone in search of smooth and rich audio for their headphones. Outfitted with an easy-to-change 6N3 tube, the SP100 delivers a warm and soft sound only attainable through quality tube amplification Read More

Jan 29, 2020
I'm having some issues and I need to make sure it's not me. Just got this amp and volume is very low, sounds distorted, muddled, like its echoing under water. If I pull either the right or left RCA the sound improves, but together it's terrible. I've tried it on my phono stage, I've tried on my DAC, I even went and bought a 3.5mm to RCA adapter and tried it out of my laptop, all the same. Am I missing something or do I have a lemon?
Feb 4, 2020
CodudeWhat cans are you using? It barely pushes my my m50x. Tried 6xx, 4xx, my beyer trio, volume is tapped out. But, as far as sound issues.....none. I do have a jan 5670 on the way, we'll see. May try it thru my el dac, see if that helps.
Feb 21, 2020
CodudeIt's most likely just the jack adapter... Try to pull the small jack a bit out and it should be just fine :)
Dec 24, 2019
Has any one else swapped out the tube to a 2C51W / 5670W? Or plan to?
Dec 30, 2019
CodudeWas wondering the same thing. In a review listed here they say yes, great improvement. But it is mentioned that you need a 6922 adapter. However in the description listed here and elsewhere a 6N3 is used which I've heard means no adapter is needed. Does anyone have any experience with this?
Feb 8, 2020
CodudeChanged out for the 5670. Sounds great, boosted the volume just a bit. I have used the 4xx,6xx,dt 770,880,990.....but.....surprisingly....I enjoy my m50x and m40x the most on the tube amp.
Dec 20, 2019
Will this amp drive 32 ohm headphones to loud levels? The specs seem real low. Does anyone know what the frequency response is?
Dec 21, 2019
Morri2It drives hd600/6xx to loud so 32ohm shouldn't be problem. Tube amp is all about distortion and changes from tube to tube, so seldom has technical side analysis for tube amps.
Dec 19, 2019
If only there's sp200...
Dec 10, 2019
hi, I did not receive the goods. my order number is: MD-90985-4219745
Dec 22, 2019
MosquitoChines EMS message is: Oct 30 2019
Returned to SenderChina EMS (ePacket) GuangDongShengShenZhenShi XGZKLTB please check.
MosquitoDid you try contacting Drop customer service?
Nov 21, 2019
anyone else having issues with the power brick? plugged it in and it started smoking (literally)... and yes, it is - supposedly - rated for up to 240V...
thdiamanSounds like a job for customer service. Smoke and mirrors can be nice, but not with consumer electronics.
Oct 30, 2019
Not sure if anyone has said it yet but this does not have RCA out. It has 2 parallel RCA inputs. While it can be used to daisy chain it does not provide any sort of pre-amplification to those RCA's it's only output is the headphone jack. Drop should update the description. With that being said it is a very vibrant sounding amp. It's great and I love it!
Dec 20, 2019
Powers the sennheisers very well. I was surprised. It seems to have way more power than what's listed
Oct 18, 2021
gorillatictacsfor fuck sakes i should read your comment before buying it
Sep 19, 2019
I'd love to see the m500 soon!
Sep 6, 2019
I've read the Blue one sounds the best.
Sep 5, 2019
Is this going to be better than massdrop o2 amp?
Sep 6, 2019
AaaaaaIs there something wrong about the O2 that I'm not aware of? I have it, and it's lovely, it quickly replaced my much less flexible (although more colored and "enjoyable" with the correct setup) Little Dot I+ as my office desktop amp. In fact, I like it so much I'd even buy a O2+ODAC to get the a decent standalone DAC/amp.
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Recent Activity
So i just bought the M100/SP100 micro-stack as I call it for $50 shipped used. I know your post is old, but if anyone else is looking for info on this setup, this Drop thread is one of the few resources that come up on a Google search. I immediately swapped out the tube with a GE 5670 W tube that I picked up for $8 on eBay and it is 100% worth it. The detail and soundstage size both pick up significantly after swapping from the stock tube. As to whether the tube is just decoration, I have ABd between a few of the solid state setups I own (Burson Timekeeper 3i, SMSL M500, JDS Labs El Stack2+, Ferrum Oor/Hypsos) and it does add a little bit of that "tubey goodness" to the overall sound. I also agree with Zeos' review where he says he thinks the output is more powerful than they list because I have use the M100/SP100 to drive my AKG Q701s and K702s as well as a pair of 150ohm DIY built headphones and it does so with volume to spare and the headphones come out with the requisite fullness and bass depth without struggling or compressing the soundstage especially once you swap out to the 5670 W, but it's not bad with the stock tube either. Overall, I thought I'd give this little stack a try, but didn't expect much and I have been pleasantly surprised. The M100 is a capable DAC that can be paired with the amp of your choice and serve you well. The SP100 is a lovely little tube hybrid box that actually sounds quite good and drives harder than I would have guessed. Throw in the GE 5670 W tube swap and you have yourself a killer setup for cheap. I saw this combo for sale on ebay and Mercari as well, one for $75 shipped and the other for $85. I would have no problen grabbing this setup at those prices on the used market and going to town. I hope this helps anyone who's looking...
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