I've been spending a lot of time lately with my HD600, 650, 660S' in anticipation of receiving mine. My shipment was pulled back and I still haven't received a new shipping confirmation or tracking #.

I doubt your logic regarding later production versions being better than the early. The driver has been the driver since the beginning with the changes in tuning happening through the housing tweaks. I would't be surprised if the drivers had been produced months ago while the changes to the...

I just got the same thing. So this is telling me that MD screwed up and was probably going to send us pairs without the low serial# we were promised (First 500 people who join the drop are guaranteed a serial# of 550 or less). I guess after the 6 months of waiting they totally forgot about the...

42 hours after my shipping notice and status is still "Label Created". MD shipping is horrible!

I assume you're talking about a wrench to remove the set screw holding on the volume knob. I didn't need any special tamper proof wrench when I installed my MB DAC Module. Mine was just a standard allen wrench socket. You can pick up a set of wrenches at a Lowe's, Home Depot, Menards, Ace, or...

When I want bass I go for my Sony MDR-1A.

Bugle Boys are my favorite with my Woo WA3. Still, my favorite amp with the HD800S' is the Jot (MB DAC Module).

I'm convinced that I'd heard there will also be a Sennheiser version of this headphone, but I don't remember WHERE I heard this. Can someone confirm or deny? Perhaps this could be the reason the price will have to be be raised; bring it more in line with their own model. I can't imagine...

I had the OG 4490 and I swapped to the MB module. It was almost 5 days between me taking out the 4490 and installing the MB (Schiit forgot to send the standoff in my kit) so take my impressions with a grain of salt. I think the new MB module has a higher output level (good), my HD6xx series...

I had the original 4490 DAC in my Jot, and I'd say I do notice that it is running a bit hotter with the MB module (though as the owner of an Asgard 2 I would actually call the heat level of the Jot merely "warm"). Some of the additional heat may be due to the MB module being larger, having more...

Wow! That really sucks! Why would they send something like that when there was already a tapped hole in the main board? Forcing you to gut the whole amp seems ridiculous when the system I received was so simple to install. Between unplugging everything, gathering up my tools, doing the swap...

You're Welcome!

I have a Magni 2U and a Vali 2 which both have the aluminum knob, but I just got the Magni 3 and the knob is crappy plastic. I may have to make my own aluminum knob for the Magni 3.

This is what you should receive One Multibit DAC Card in a static protective bag. One small bag with a window filler piece and a small black screw to attach it to the amp's shell. One small bag with an aprox. 3/4" to 1" long hexogonal post (standoff) and a small silver screw to attach the DAC...

The knob turns smoothly and firmly. The knob itself is a solid chunk of aluminum and it feels heavy when you turn it. Best of all, the pot is silent.

I was able to do the swap by removing the volume knob, the nut and washer behind the volume knob (remove aluminum housing here), the screw that attached the window filler piece to the case, and one screw that held the old DAC module to the main board (remove module here). I installed the...

Thanks for the reply! I picked up a couple balanced cables for my HD600/HD650/HD660S, and one for my HD700. I really like the improvement to the sound of all the HD's when using the balanced cables with the Jot.

Are you running them off of the balanced output? I really like the balanced side of the Jot with all of my HD6xx series cans. I will admit, however, the Woo Audio WA3 I just purchased makes the Senns sing like nothing I've ever heard!

I was missing the stand-off with my upgrade kit as well. They sent a kit within an hour of me contacting them, but I had already waited 10 days for the board to arrive (and I paid for 2 day shipping). It will be almost 3 weeks from ordering to being able to install the module! I've had...

I just ordered mine. Looks to be a simple procedure. It is important to observe static discharge protection methods (ground yourself).

Okay...That was Hilarious!!!

Thanks for your review. The HD 660 S is my favorite of the 3, but I still keep them all in regular rotation.

I have an original Magni and a Magni 2U and I've always felt that both were a poor pairing with the HD600 and HD650. Even a Little Dot MK II with some Voskhod tubes were a better pairing. The HD6xx family of headphones (and my HD700's) sound great on my Jot (balanced DAC module). I was...

I certainly can't argue with that.

Thanks Charles!