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HD600 unwise for PCDCP ? - Page 2

post #16 of 25
10/13/03 at 11:05am
Quote:
Originally posted by Kim Hardee
I also have a D-33 player, and it sounds awful driving the HD600s in my opinion, no guts. (...)The D-25 is one of the few PCDPs that have output power to spare.
That's interesting, I actually prefer the D33 over the D25 into these phones. The D25 has a maximum output of 4.5mW into 300 Ohms vs. 4.3mW for the D33. That's an absolutely negligible 0.2dB difference, anyway probably below what I can reliably measure. Output impedance is almost identical as well. Where they differ is that there's about 4dB more gain on the 25, which may very well lead to an impression of more 'guts', if you don't take care to match levels when comparing the two.
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post #17 of 25
10/13/03 at 12:56pm
Did you measure the max power at low frequencies? If so, maybe there's something wrong with my D-33. I have to turn the volume control very high for an acceptable level (gain issue), and then there is noticable distortion for loud low bass. My D-25 plays much louder with no significant bass distortion. The D-25 also seems to have much more detail, which I prefer. I guess that's just a matter of taste. Anyway, maybe you should disregard my comments about the D-33 since mine might be defective.
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post #18 of 25
10/14/03 at 5:12am
If you are planning on getting an amp in the future for home use or get a PCDP that have the headphone out that can drive the 600's you will be fine. I sometimes drive my 600's with my Sony D25s and my Nomad Zen without difficulty and they sound good, but open up more and reach more of their full potential with my Meta-42 which I seldom use.

If you are interested in buying a mint pair of 600's and a Meta-42 in excellent condition, I am thinking of selling them as a package. See gear for sale and send me a PM if interested
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post #19 of 25
10/14/03 at 6:58am
Quote:
Originally posted by Kim Hardee
Did you measure the max power at low frequencies?
No, at 1kHz. I'll try to look into distortion vs. frequency, but don't really expect any surprizes at lower frequencies, generally you'd expect distortion to rise towards the upper end of the spectrum...
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post #20 of 25
10/24/03 at 2:44pm
Yep, my D-33 is defective. I opened it up and it looks like transistor 102 is fried. I'm surprised it works at all.

Therefore, ignore my comments about this player.
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post #21 of 25
10/25/03 at 7:30am
Quote:
Originally posted by Kim Hardee
Yep, my D-33 is defective. I opened it up and it looks like transistor 102 is fried. I'm surprised it works at all.

Therefore, ignore my comments about this player.
Q102 is one of the muting transistors. It pulls the headphone out to ground to supress turn-on/off thumps. This transistor isn't terribly important for the player to work, try pulling it altogether, maybe that will help. But the question is why is it fried and whether other parts were damaged in the process...
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post #22 of 25
10/25/03 at 12:52pm
Thanks for the info, PeterR. Maybe I'll try to fix it. I agree that more than just Q102 is probably bad unless it is causing a resitive path to ground on the left channel output. Do you know where I can find a schematic for a D-33?
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post #23 of 25
10/25/03 at 1:35pm
I have the service manual here, could scan the schematic if you want...
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post #24 of 25
10/28/03 at 4:04am

It's not about loudness

Hunter Killer,

Spme (the older/better ones) may indeed be able to drive the HD-600 to an acceptable loudness level. However, if you're doing that and find the sound to be good then you can imagine what's it's going to sound like with an amp (even better) and a home CDP (generally they output about 2 volts vs 0.6 or 0.7 volt for a portable). So if you're thinking of upgrading then get an amp first and then a home CDP.
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post #25 of 25
10/26/11 at 10:25pm

Bumping up an old thread to find out if anyone knows if a Sony D-33 has enough juice to power an HD600. If anyone knows this and can let me know, I'd appreciate it big time. 

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