Comments on Compudio Gadget Reviews - Tech and Audio Reviews: Sennheiser Idol: HD580 vs HD595 vs HD600 vs HD650 ...

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Hey great review on the fundamental aspects of eac...

2009-12-29T22:38:24.158-05:00

Hey great review on the fundamental aspects of each headphone. I really enjoyed the personal account along with factory characteristics that separate one headphone from another.

...please where can I buy a unicorn?

2009-12-11T14:25:55.985-05:00

...please where can I buy a unicorn?

Anonymous, You are right only in one part, that s...

2009-12-04T10:34:40.567-05:00

Anonymous,

You are right only in one part, that sound is physics. However, you fail to recognize that the way we perceive sound is more of an Art than of Science. How we perceive sound and music and what kind of sound we find enjoyable is impossible to define in scientific terms. While you can define a piece of painting using chemical terminology, most people would tell you how they feel about that painting. Same applies to sound. All reviews, including this one, are biased in some ways, and are subjective based on the reviewer's perception. The "objectivity" of this review comes down to how well the readers understand the "feeling" of the reviewer and the reviewer's credibility built with his readers.

Hello. And Bye.

2009-11-30T14:13:48.508-05:00

Hello. And Bye.

Dear Anonymous, I agree with you mostly but I hav...

2009-07-24T17:10:12.604-04:00

Dear Anonymous,

I agree with you mostly but I have a couple of questions:

1) The HD600 have an impedance of 300ohms across the range but spike at almost 600ohms between 80 and 140hz (!!) - If the HD595 have something similar (I can't find an impedance chart for them but it's very probable as the HD555 exhibit a spike at those frequencies too), wouldn't that account for reduced bass with poor amplification?

2) The higher the impedance, the lower the current but higher the voltage (ohms law!). So during impedance spikes of 600ohms at the 2mW required to get 96dB (give or take), you are looking at almost 11v to power the headphones - that's some serious voltage swing that no modern DAC I can find can handle.

A generation 5 ipod peaks at 3.6v 20mW. While it can sure give enough current to get some serious volume, it can't give enough voltage which kills frequency response at higher impedance. Doesn't an amp solve this problem?

3) Yes, most terminology is highly subjective (bullshit) but to date, I haven't found any objective way to compare headphones or any audio equipment for that matter. Have you?

Sure there are frequency response charts, SNR, THD and others. But headphones that look great on paper don't always sound "good" and vice versa.

Like so many audiophile reviews of audio gear, thi...

2009-07-22T10:12:04.297-04:00

Like so many audiophile reviews of audio gear, this review fatally suffers from a lack of a fundamental understanding of how electronic components and transducers physically work. The repeated use of terminology that has no true technical definition, e.g., "forward leaning", "faster signature", "lighter impact", amounts to nothing more than jabberwocky.

Most revealing, however, is this: "While it's true that the 595 has smaller low-range presence, the bass proves extremely competent when the headphones are properly amplified. Unlike the bass on the HD580 which tends to color all sources, the bass on the HD595 only comes out when the source (music etc.) calls for it."

This does not make a modicum of sense. If the bass is weak on the 595, the bass is weak regardless of the source material. This is typical audiophile nonsense. And the suggestion that when the 595 is weak in bass it is due to improper amplification, is even more ludicrous. For that to be correct, the 595 would have to have a really severe impedance anomaly at low frequency to which the amplifier would react. Even if the 595 itself actually had such a problem, which is extraordinarily unlikely, you would be hard pressed to find any decent modern amplifier that would behave badly given the very minimal amount of current that headphones draw. It is simply the nature of high-impedance headphones to not exhibit any such problems. Very few loudspeakers even have any such problems. The problem with audiophiles of this sort, which is to say most garden variety audiophiles, is that they never studied any physics or electronics, and don't actually have the first clue as to how any of the stuff that they own actually works. It is all just a big mystery to them, and for lack of any real understanding of any of it, they go around using terminology and phrases that no bona fide engineer or physicist in their right mind would ever be caught dead using.

Cool writeup! - I'm going to go with the HD600 - t...

2009-07-19T09:47:44.236-04:00

Cool writeup! - I'm going to go with the HD600 - they seem to sell for around £140 ($230) on ebay at the moment (yeah, we get ripped off in the UK).

Just wondering, how do they sound straight out of the EMU 0404 USB? - I heard it should be able to power them quite well.

I can't afford the Little Dot MKIII at the moment :(

Thank you for your review. I auditioned the HD650 ...

2008-05-28T11:59:43.230-04:00

Thank you for your review. I auditioned the HD650 and had a similar impression to yours. I really enjoyed the smoothness and the full-bodied bass, but I couldn't see it as being neutral. Perhaps Sennheiser see it as their best in terms of it being so enjoyable?

I have and enjoy the HD595 and was mainly looking for something for Classical music, which just sounds too close to the listener on the 595. I ended up getting the Denon AH-D5000, which is a wonderful discovery.

(Sennheiser has stopped selling the HD600 here in Japan, so it wasn't really an option).