Sennheiser HD650 & Massdrop HD6XX Impressions Thread
Nov 13, 2013 at 3:34 PM Post #14,343 of 46,527
  FYI. I weighed the mini xlr adapters. The pair of them weight 20 grams. And the entire cable weights 120 grams with 1/4 plug at 9 foot length. 

hmm that is indeed light. not bad at all!
 
Nov 14, 2013 at 2:29 PM Post #14,345 of 46,527
Another happy HD650 owner checking in. These things are incredible. If I could lessen the f@#$ing clamping force I'm pretty sure I'd be happy with them for the rest of their lifetime.
 
I'm having some issues with amping, though. The Aune T1 does okay, it has nice impact and the brightness actually does well to counteract the reduced treble. The problem here is that I also own a pair of Grados, and the Aune does not obey the 1/8th impedance matching rule... basically, it sounds fine, but I know it can be better.
 
I tried Asgard 2 and decided today that I'm going to send it back to Schiit. The Aune actually beats Asgard 2 in terms of impact, soundstage, and sparkle... I once read that "HD650s allow you to hear the amp. Amps are veiled, not the HD650s." So, I guess, Asgard 2 has the veil. EDIT: THIS ISN'T THE CASE ANYMORE. I highly recommend Asgard 2 for the HD650 if you're looking for a good solid state amp. The Aune sounds really thin and bright in comparison. 
 
So I'm on the hunt for an amp:
 
* I prefer solid state, as I already have one tube in the signal path from the Aune T1 DAC and I'd prefer to get the same sound signature from headphones and speakers (the benefit of having the tube in the DAC).
* Low output impedance so that it can drive Grados, too.
* Musical over analytical, every time. This is why I don't want to go the O2 route. Also O2 is ugly and has a 1/8" jack which aesthetically bugs me.
 
Someone on Reddit recommended the Matrix M-Stage, which from my research is warm and dark which is a no-go to match with a warm, dark headphone. Audio GD NFB models have awesome reviews and a great price tag, but they're out because they don't have analog inputs and I use three separate sources.
 
HELP!
 
EDIT: PS Any recommendations for a good cheap replacement cable (aesthetic purposes), and replacement ear pads?
 
EDIT 2: I take it back! Asgard 2 is a wonderful amp and decided to open up at the eleventh hour. It's really smooth and hits hard. I love it. 
 
Nov 14, 2013 at 2:39 PM Post #14,346 of 46,527
@Oh****gorillas

The clamping force goes away after about a week for me. Also, you might want to wait a bit to send back the Asgard. Your probably going to notice some slight sound changes over the next several listening sessions.
 
Nov 14, 2013 at 2:41 PM Post #14,347 of 46,527
@Oh****gorillas

The clamping force goes away after about a week for me. Also, you might want to wait a bit to send back the Asgard. Your probably going to notice some slight sound changes over the next several listening sessions.

Thanks for the fast response. I've had the Asgard 2 for about a week and I think the veil has actually worsened over that time. The Aune is seriously its better in every department except low-end tightness, which is a subtle difference at best.
 
As for the clamping force, I've had these things for two weeks. I used a bunch of CDs between the ear cups for two days to stretch them out and they're back to trying to consume my head, ears first :frowning2:
 
EDIT: Nope, Asgard 2 is a wonderful amp for the HD650. You were right, and the amp opened up at the eleventh hour. It's very smooth, laid back but hits hard. 
 
Nov 14, 2013 at 2:42 PM Post #14,348 of 46,527
  Another happy HD650 owner checking in. These things are incredible. If I could lessen the f@#$ing clamping force I'm pretty sure I'd be happy with them for the rest of their lifetime.

 
You can adjust the clamping force by extending the headband fully and bending the metal parts. They are made from spring steel and are very strong/flexible. The best way is to do it one side at a time: hold the extremities of the metal strip in either hand, using your thumbs as a pivot in the centre. Your thumbs should be on the outside, pointing 'in', if that makes sense.
 
Just make sure you ONLY bend the metal part and apply no pressure to the headband plastic, and you'll be fine.
 
(Edit to say: I used to own some HD580s, which have the same headband design as the 650s)
 
Nov 14, 2013 at 2:42 PM Post #14,349 of 46,527
   
You can adjust the clamping force by extending the headband fully and bending the metal parts. They are made from spring steel and are very strong/flexible. The best way is to do it one side at a time: hold the extremities of the metal strip in either hand, using your thumbs as a pivot in the centre. Your thumbs should be on the outside, pointing 'in', if that makes sense.
 
Just make sure you ONLY bend the metal part and apply no pressure to the headband plastic, and you'll be fine.

Nice, awesome tip, thanks. Will definitely do that when I get home!
 
Edit: This definitely fixed the issue. They're wonderful now. Thanks so much! 
 
Nov 14, 2013 at 4:38 PM Post #14,353 of 46,527
It is what it is. There is another change in the mail now. New hp on the way from Justin at headamp. 
atsmile.gif

 
Nov 14, 2013 at 4:49 PM Post #14,354 of 46,527
Anyone know how the Little Dot MK IV would pair with the HD650?
 

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