Quote:
Originally Posted by Lavcat /img/forum/go_quote.gif
You are redefining the argument. You had been speaking of voltage limitation (and current limitation) when driving insensitive 300 ohm phones, which I have demonstrated is not an issue here. Now you are talking about ripple.
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I don't know anything about ripple, but I'm confused reading your response to tomb because you seem to be talking about different things. You're talking about loudness, and tomb isn't. Unless I'm misinterpreting your words, you're saying that certain soundcards can drive known difficult-to-drive headphones to sufficient volumes. As far as I know, that point was never in question. I'm not a technical person, so I'll just give an example from my listening experience, so forgive if I'm missing either your or tomb's points, but here's my understanding:
Let's take one of the most notorious hard-to-drive headphones, the K430s. I was certainly able to get sound from my computer soundcard, but not sufficient volume (no, I don't have one of the newer, reportedly more powerful soundcards, and I admittedly know nothing about them), and the sound was thin, flat, and disappointing. I could plug my headphones into the micro amp I had at the time, or even the jack of the Eastern Electric MiniMax cdp I had with better results, but not really. The music was louder, but really unsatisfying, though I could certainly get a taste of the K340s sound signature and the beautiful mids. I bought a Heed Canamp and a Darkvoice 336, which were $400 and $260 at the time (I have no idea what they are now), and what a difference! Not only was I able to get it way past volumes I would want, the sound quality drastically improved at normal, safe listening volumes, and I was suddenly noticing parts in the music (mostly in treble and bass) that I hadn't noticed before. I became aware of imaging, and a sense of where the instruments were placed in relationship to each other, an idea of "soundstage" and depth, etc. that were not present with other, less powerful amps. I had to turn both amps up to a certain volume (a wee bit loud, but not too loud) to hear the music like that, but it was wonderful when I did. I suddenly knew the benefit of more powerful amps with certain headphones.
Jump forward about a year, and I got a SP Extreme Platinum, which I'd bought to drive K1000s single-ended since I didn't have a power amp at the time, and having heard the amp at a meet, I knew it could drive all my headphones. I thought it might be a Swiss Army knife of amps, and it still is my only full-size dynamic amp. Anyway, I plug my K340s into it, and the bass is cleaner, tighter, and with a better sense of attack and decay. That jumped right out at me, but here's the kicker: I could turn the volume down to almost inaudible levels, and every bit of music was presented as fully as it had been with the Canamp and DV, but with those, I needed to have the volume borderline loud to hear it the same. And with the SP, at the same "normal" listening level as with the Heed and DV, the K340s had a more open sound, with much better separation of notes (e.g., can hear individual notes in tympani rolls, not just the roll) and sense of balance from bass to treble (heavier mid emphasis with the DV and Heed).
That experience was the first to teach me that driving a headphone "well" had very little to do with volume. Volume was just one factor, and since that time, it's never been a deciding factor for me when choosing an amp, since most amps can produce adequate volume.
BTW, I ended up using the SP as a preamp to a FirstWatt F1 for the K1000s, and the best I ever heard the K340s was with jp11801's re-terminated to a 4-pin pair, using a K1000 tail and the FirstWatt. Holy moly! These headphones are seriously underrated because they are usually seriously underpowered. Can a decent desktop (DV, Heed) drive them enjoyably? Absolutely! Can it drive them well? That's debatable, but in my opinion the answer is no. Oh...and the SP could definitely drive the K1000s to sufficient volume, but also not drive them well. The K1000s definitely need a power amp to bring out their sound.
Now, I just used those headphones as an easy example, but I've found the same to be true with the HD650s, K701s, and though I sold my HD800s, the limited experience I had with those headphones is pretty much the same.
I don't know of anyone who would tell someone not to enjoy their headphones, if they do, from whatever they're using to drive them. Enjoy!
On the other hand, it's also alright to acknowledge that sufficient volume doesn't always equate with being well-driven.