I got me some SR007's. I have a modi right now but it's having some issues and is definitely holding my system back. I want a standalone USB DAC that is transparent, clean, and precise for under $400 (tops!) I want to buy used if possible, and would prefer something other than Schiit this time...

Hello again, I'm looking to upgrade my DAC. Is there anything recommended for SR007's that is below $500? I'm willing to buy used.

Now you have caught my interest. How much, more or less, would the components for such an amp cost? Is there a BOM and schematic available for such a device? I don't have anywhere near the time to do this, nor do I have the knowledge, but I would fo it down the road.

Just get the most expensive one. It sounds like you want to and can afford it. Or you could get a cheaper amp and buy the SR007's with the extra money.

A little knowledge about the most dangerous components of an amplifier goes a long way. As for the biasing, I've only biased the T1, so IDK if the internals are similar. But I never was turning the adjustment pots all the way. I was doing very fine adjustments while looking at the multimeter...

L700 vs Sr007 mk1. GO!

I studied Voiles in my intro music class last semester! And I have a song like that that was quite sibilant before I got the SR007. This: The constant snare and hi hat sounds echoing were brutal on HD800's, and LC2's didn't capture the ambience of the song.

I was literally about to ask about DAC's when I saw this. And funny thing is, I have the Modi Multibit, too. @VRacer-111 what differences can you hear between a lesser DAC such as mine and a ~$500 one?

Right on. None of us need $2k headphones and amps lol. But the gear part of audiophiledom is something so visceral that appeals to humans' desire to always want more and never stop; it's truly addicting. Philosophizing aside, what more do I have to gain from going from my modded T1 to a...

surface mount device

With proper amplification, the Sr007's (i have mk2.9 bass port modded, apparently like the mk1's) are the most "liquid" headphones I have tried, and I have a fair amount of listening experience with hifi/midfi gear. Nothing harsh about them. The gentleman I bought the headphones from also had...

Do you guys EQ your stax? if so, what do you use? Would a simple rackmounted EQ like this work? https://www.sweetwater.com/store/detail/FBQ800 Or would an audiophile specific eq be better?

Alright Stax mafia: modded T1 vs every other common amp stax has produced driving sr007. Who wins?

Schiit says the Lyr 2 has preamp outputs for speakers. Am I missing some difference between powered speakers and a headphone+amp combo?

OK, I see now. So basically a preamp is a glorified control box with volume :D

Thanks for clarifying that. I never was really sure what preamps were for. I tried it out with the two amps and it got real fuzzy real fast. I could try tube rolling the Lyr to see if it makes it better, who knows what can happen. Can messing around with the balance between the volumes of the...

I have a question about preamps. Is there any reason why I would want to use an amp with preamp outs (Lyr 2) with another amp (the T1)? I've heard it just adds more tube flavor to the sound, but IDK for sure. Also, what is the use for the parallel RCA's on the T1?

Get a placeholder amp as has been suggested, or just splurge on a mega-top of the line-silver wires-unobtanium coated amp. You seem to be heading toward the latter, so I'd say if you can afford it do it. DIY's a whole nother realm of not just money but also time.

Who needs heating in their home when you have an amp like that? Hot damn.

Yes, there's an article in audioxpress that details the upgrade. You can purchase it for $10 or so. If you're not skilled at DIY like me, rhe upgrade can take a while to do. It took me a full month, but YMMV. Ask JimL11 more about it cuz it's his mod.

I have wondered. % wise how does the modded T1 stack up against the competition?

Damn right it sounds better than stock. How did you come up with the types of MOSFETs used in this mod? Was it a lot of trial and error or just calculations?

Got the offset and balance set. It sounds f^%#^%# amazing! I am so glad this project worked out so well. I've learned so many things along the way. I'd like to thank all of you who helped, especially @JimL11. It is one to know how to do something, it's another to be able to teach it to an...

@JimL11 I'm adjusting the offset and balance now. I can get each channel's output down to about 2v: is this ok? Also, by ground terminal, do you mean the ground at the back of the chassis or the bias out in the socket?

It turned on!