Are you trolling?

TLDR version of this debate: -A bunch of people who know what they’re doing measured differences in second order harmonic distortion, which they attributed to perceived changes, particularly in bass presentation. -Other people dispute there are differences, measure the differences, dispute that...

Interested in hearing your thoughts, if you do go through with the KISS mod, @DavidA I believe differences between 6XX’s and 650’s are fairly few and far between. Sennheiser has fairly strict QA/QC, but the odd ‘unicorn’ pair with slightly better distortion measurements seems to exist.

In my experience, ordering pads through Sennheiser Canada is the cheapest/best way. They ship from QC, and I’m pretty sure there is no shipping cost. Maybe you’ll find them in the states though... I’d go with official Sennheiser pads, unless you want to change the sound of your 650’s. Have you...

I could see Gumby being preferred with a colder/clinical sounding amplifier as it is a touch warmer than Yggy. I can't see anyone preferring Bimby to either... Mimby I could definitely see, as it's a lot cheaper, and arguably doesn't take as long for thermal stability/warmup. Mimby is also a...

Shorted or grounded inputs are most likely the cause. Gumby doesn't like this happening, which causes distortion. This is probably caused by the Pioneer when it's turned off. Your fix is probably as good as any... Leave it muted. An AV splitter may cause signal degradation.

Nice, that should be an awesome project. I really enjoyed the T1, but having had a chance to listen to some other DACs, I have to say that it isn't exactly a knockout. With a decent tube, it has the ability to sound very musical, but ultimately, the TI chip lacks overall clarity. It tends to...

The EL-8 open are better than the closed, and they have the Audeze house sound. Compared to dynamic drivers, I'd expect more bass, and faster transients. It's been years since I heard the EL-8's, but I remember comparing them side by side with the LCD-3F's and they seemed to have a similar...

God this discussion is pointless. If you can't hear the effects of jitter at that measured level, great. That leaves the rest of us who can. Enjoy your listening. It's well worth leaving your DAC on.

That case wear looks really odd. My ZD is at least 2 years old and doesn't have any fading like that.

CM - I know the 650's have been on your ears for a while. So you've had a chance to hear modded 650's, and this is your conclusion, or are you summarizing this thread? Either way, I disagree 100%. As you know, they've also been my headphones of choice for quite some time, and now I could never...

Hilarious and dumb.   Use the stock cable and put a 4 pin XLR on there. If you don't have one, hit me up... I'm just west of Toronto and can make you one for less than $60 with parts and time.

  Without trying to generate any kind of controversial comments, I took a pic of some measurement comparisons taken by Tyll. They are all available at these links: Grado SR325 measurements http://www.innerfidelity.com/images/GradoSR325.pdf HD...

Yes, per above, grin and bear the 650's for a good week. Your brain may become accustomed to the sound, vs the "illuminated" treble of the Grados. The Aune is ok, but not great. It does a decent job with the 650's at the lowest dip switch setting... I found changing it higher caused...

Imo:: The 800 bests the 650's in bass quality and quantity, macro-dynamics, overall soundstage and imaging (the 650's scaling in this area is huge though... soundstaging just gets better and better). The 800's are also tuned differently in general... Much less warmth than the 650's, and also...

Depending on where you live, there are local Canadian based meets. I know a couple of people with Yggys north of the border, and I myself heard it shortly after it was released in Calgary. As for overhead, the banks exchange rate is usually not as good as the market, so for larger purchases...

Power is super easy to calculate. Here are DC calculations... Voltage = Current x Resistance Power = Current x Voltage I just used the values that Matt told you... I have no idea if those were single ended or balanced calculations ;) I can step you through the calculations, if you'd like. You...

I did find there is a "big" difference in overall fidelity, going from the 5X8 to the 6X0's... I think it's nice that the 5 series is low impedance/easier to drive/generally doesn't require a crazy amping setup, whereas the 6 series definitely benefits from scaling up with gear.   It would be...

Sometimes a cigar really is just a cigar. My comment is that it's worthwhile to terminate the stock cable with a balanced connector for amps offering both outputs. Most amps that have both available have more power on the balanced output... When properly implemented, more power usually results...

Balanced 650 with a good balanced amp is hella good. 

These numbers calculate straight up as mentioned, but this doesn't really make sense... the HD-650's are 300ohm nominal impedance... using the above calculations with the GOv2, I end up with 64.53mW.   I don't know if you've heard the 650's driven by the GOv2, but they are very loud and...

Pad wear in, or possibly some driver burn in would change the sound a lot more dramatically than a cable. They are dynamic drivers, and I did find they had a bit of burn in myself (nothing as dramatic as some capacitors in other gear).   What is your chain going to the 650's? They also scale...

That's cool. Have you ever considered adding a turntable as well?

Regardless of it being used, I'd give it a good 7 days of warm up. My experience is that it takes at least a week before it's 100% - I use my turntable until it's ready, as I find Gumby's overall clarity and bass seem to suffer the most until it's completely ready.   I would suspect the...

Awesome. Looking forward to detailed impressions of the GO2a vs MB Modi. Normally, I find that DS treble is a huge deal breaker for myself, but the GOv2's treble is probably the best Sabre implementation I've heard. I find Gumby's treble is more natural sounding with more overall clarity than...