Feb 27, 2016 It's the one quality that keeps me from saying this could be an end-game amp for. Gave the Bottlehead Crack/HD-600. Crack w/o Speedball FWIW. Heny Now, Welcome. I use a Crack w/Speedball and aftermarket tubes (Sylvania) with my HD650s and find it extremely enjoyable and non-fatiguing. It's the one quality that keeps me from saying this could be an end-game amp for. Gave the Bottlehead Crack/HD-600. Crack w/o Speedball FWIW. Derby Cycle Bionx Software.

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Weekly Discussion •. How difficult is this to build? I have a fair amount of soldering experience, having modified several mechanical keyboards. I have also built a few boards as well. So, I only know how to solder PCB.

Is the Speedball always visible on the outside of the box? I have seen pictures of the speedball and each one displays the chips and electrical components on the outside of the box. Can you place it on the inside of the box? Are there any other options in the same price range that work as well with the HD650s? The pairing of the Speedball Crack & HD600/650s is legendary. I love the warmer sound signature of the 650s and replaced my 600s accordingly.

I am not into music or audio proudction; I am using them purely for audio entertainment via gaming and primarily rock music. If you can solder and measure/cut/strip wires, you can build a Crack. The Speedball goes inside.

There are a few screw holes inthe top that aren't used without the Speedball, so you can tell without looking inside whether it's installed. But it goes inside the box. There are other options, but the Crack can be modded to be better than most other budget options. Add film capacitors to replace the electrolytic output caps and add a stepped attenuator and the thing really, really sings. It's truly awesome with the Senns edit: was on mobile, didn't mean for this to be a reply • • • • •.

Cont from the last forum: • 's 6080 tube overview: • 's 6AS7 tube overview: • 's 12AU7s & variants overview: • 's 6080/6AS7 tube overview: • ' driver tube overview: • 's Crack Modding Notes: My brief thoughts on the Crack I have. Thanks to /u/DeletetheWeak on /r/headphones for loaning it out to me ------------- DRIVER TUBES ------------- Baldwin 12AU7 = Overly smooth, not engaging enough, not enough attack. GE 5814 = Bit more attack up top, more alive. Has a certain etch. Not as fast and clear as HK. Somewhere in between MW and HK.