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Mine just randomly showed up out of nowhere. No email from massdrop with a tracking number or anything just showed up at the door, but besides that paired with my sennheiser 6xx the sound is mindblowing. Coming from my superlux HD681 evo's. There is a slight hum/buzz that is noticeable at high volumes or with music paused but, im hoping it will go away as the tubes get used. Will most likely replace them with something more high quality later but at the moment it sounds to amazing to mess with.
I'm getting that hum too. The stock tubes aren't that great from what I have read. There's a good chance that'll clear up the hum as well. I've been looking on eBay for some new ones.
Maybe someone more experienced could provide some input.
FYI the power cable that came with mine didn't seem to fit right and the amp was humming really loudly so I swapped it out and most of the hum went away. It then got even less hummier (I love making up words) as I broke in the tubes.
That's for the reply. Did you seek out a specific aftermarket cable or was it just one you happened to have?
It was a standard desktop computer cable that I had in an old work bag. My original cable would easily move up and down if you tried so take a look at it. Once I swapped it out a huge amount of humming went away.
I'll take a look as soon as I get home. I've also considered a "cheap" power conditioner to use as well. I obviously can't afford one of those $50k power conditioners but you can pick up some used ones like a Furman M-8x2 for under $100.
Thanks for the tip.
I placed a bottle of hair conditioner near mine but it didn't seem to help much.
Check out my comments/review. There is good info for everyone there. ;^)
Stock tubes are shit, only shit. Very good amp but u need to change valves. In mine i use RCA JAN CRC-6AS7G for power tube, very simple and neutral power tube, not too expensive and Sylvania JAN 6SN7WGTA for pre-amp. Good for rock/jazz music or similar sound type, deep bass but more stage on mid beacuse i use this combo on a DT990 that is a headphone with much treble and bass than mid and i need to balance that. Ah, fast valve is good for gaming, like mine.
For the right valves check this forum: https://www.head-fi.org/threads/the-reference-6sn7-thread.117677/
Did that hum / buzzing go away?
The buzzing/hum as gone away for the most part to the point where you can only hear it at max volume when nothing is playing