The GRADO SR-60 Appreciation Thread - Page 12

That has more to do with 'sound tweaking' w/r/t ear distance, more bass = closer placement and bowl = gets the most farther distance. Also foam density plays important role, but with the wide number of pads variables and people's preference thrown in, they make a good and fun debate to watch.

I'm quite sure I saw a blue and violet ones, most likely on the other site. Although I prefer black pads myself, I'm a bit worried ended up with black ring around my ears. =)

Nothing is wrong with the stock pads on the SR-60 (commonly referred to as the "comfies" due to, you guessed it, their comfort), but the supra-aural design means the cups press your ears against your head. This isn't a bad thing, as such, but for people like myself that wear glasses, it can be very uncomfortable after a while to have these metal bits being driven into your skull and ears from the pressure. This isn't a unique problem to the SR-60, but rather one to almost all headphones designed this way. If I take off my glasses, the headphones immediately become much more comfortable.

Which can be easily defeated by the bass heavy sound of your beloved HD-650.

That sr325, hd202, k101 and ur20 comparison came from same headroom chart which rsaavedra used, and simply show that a flat impedance curves relate very little to sound quality.

Sounds encouraging for my liking. So I don't have to expect a bass hump, but rather a depression, from my "about 200 ohms output imp. amp." + HD595 ?

But then, HD650, HD600, HD580 all have the same peaky impedance.
Here's a fine "height of the peak" ranking : HD600 > HD580 > HD595 > HD650 .

And Meier Audio has a graph in its site where it shows how 150 ohm and 470 ohm amp impedances will cause humps at 100 Hz and slight attenuations at the higher end on HD600 and DT931.

So?


Edit: Corrected the ranking above.

That's why I don't want to do it myself--- but those yellow pads are just ugly on the Grados!

I found MS1 to have smoother sound compared to sr60/80 - and their online price is about usd 100. If you really need sr60 in particular then why not buy used ? The pads are easily removed and sr60 seem to take beating anyway.

Thank you ... but not that I exactly really need it. It's more a transient idea that was creeping into my mind.

That refers to your reasoning that 595 peaking impedance led to attenuation of low frequency. HD650 have similar peak with quite different bass presentation to 595, therefore senn's peak at low freq was not the real cause of different bass level.

I agree flatter imp curve is a better one realtively to humpy 'one' and would be better for the amp. However I'm sure there's some kind of design trade off since we can see akg, senn and koss are quite competent in designing phones with flat impedance curves. Interestingly their better sounding or top models almost always bear high and peaky impedance curve.

Another thing to consider is maybe the impedance effect also takes place in log form ? If we look closely at those flat 30ish ohm lines, they also show some kind of peaks but in a much smaller scale. Since headroom chart imp axis can't be scaled down, every variation below 100 ohms will tend to look like ruler flat on 600 ohms scale.

I was very tempted to get MS1 myself since they sound like a refined sr60/80, especially in the treble area. Luckily sanity kicked in at the right time. =)

Hehe, this sanity is a value we headfiers need not lose trace of. We're exposed.


And to support your argument above, the PX100 has an impedance curve about as flat as the Grados.

Didn't mean to suggest that, I wouldn't either. Not even based on their freq. response curves alone either. A combination of graphs might influence a decision (e.g. HD650's == nice freq. response + lowest distortion), but still, hearing is believing.

Yes, I'm guessing that compensates for a naturally high response of the drivers in those frequencies. So that the two factors ideally cancel each other ending up in a smooth and appropriately flat final frequency response.