Even a mediocre receiver will drive the 600's like a charm from its HP out.
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- productSennheiser HD 600tagged by System, 2/8/11
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Sennheiser HD 600 Impressions Thread - Page 291
Gear mentioned in this thread:
Some receivers have high output impedance through the hp output. I have 2 Yamaha receivers that are both over 300 ohms so they don't play well with the 600s. Many older vintage receivers do work well though.
"20W into 8 Ohms is roughly 0.5W into 300 Ohms.
0.5W = 500 mW
The HD600s reach 116dB SPL with just 80mW.
I'm not trying to prevent anyone from trying speaker amps if they want to, and I understand that you are trying to avoid buying new gear, but I just wanted to put the numbers into perspective, so that nobody thinks they need a speaker amp in order to achieve maximum performance with the HD600s. I've used speaker amps with headphones before, but except for the HE-6s and AKG K1000s, I wouldn't recommend it. Speaker amps generally have an unacceptable noise floor when used with less power-hungry cans. The high impedance of the HD600s can mask some of this, but fundamentally you are generally better off with a headphone amplifier than a speaker amp."
"Also, if you plan on running your headphones off speaker taps, I would recommend creating a speaker-tap to 4-pin female XLR adapter, and then reterminating your HD600 (or other headphone) cable with a male 4-pin XLR. You can take the cut-off TRS plug from your HD600 cable and add a female 4-pin XLR plug on the other end. Then you have a balanced cable for your HD600s, and two adapters: one for use with single-ended amps via a conventional headphone jack, and one for use with speaker amps.
If you really want to get fancy, terminate your HD600 cable with a male 4-pin mini-XLR, then create 3 adapters:
- Female 4-pin mini-XLR to full-size male 4-pin XLR (for use with balanced headphone amps)
- Female 4-pin mini-XLR to TRS (either 1/8" or 1/4", for use with single-ended headphone amps)
- Female 4-pin mini-XLR to speakers taps (bare wire, banana plugs or spades, for use with speaker amps)
The mini-XLRs are much lighter and smaller, so when using your HD600s with a single-ended headphone amp via the TRS adapter, you won't feel like you have a boat anchor in the middle of the cable (imagine the weight and bulk of the male and female full-size 4-pin XLRs at the junction between the main cable and the adapter)."
Using 4-pin XLRs (whether full size or mini) also reduces the potential for shorting out your amp if it doesn't have a common ground.
Edited by amcananey - 9/24/13 at 2:14pm
With all this talk of vintage receivers, is there a list someone knows of that lists of the quality receivers for various headphones? I'd be totally new into trying/looking so an intro guide would be helpful...
Again, it might have been Grados where I heard this, but I have definitely heard of hairs actually damaging drivers (or maybe people damaging the drivers while trying to remove the hairs). In any case, people has to replace the relevant driver. This may be rare/unlikely, so I'm not trying to feed any sort of hysteria, but I don't consider removing the foam to be an entirely riskless proposition.
Yeah, I'll be cautious about my Senns so the foam is back on. I've also noticed that the foam removal mod may improve the treble, the bass quantity has slightly suffered as a result.
So... here's something you don't see everyday.. I moved from the HD600 to the HD800 at the beginning of the year.. and now, I'm moving back to the HD600. I still love the HD800.. it's most definitely a more technically capable phone.. and the most impressive headphone I've heard to date (no, I haven't heard the 009, though)..
..but for some reason, the HD600 is calling me back.
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