As far as I know, the grooves are cut deeper on 45rpm vinyl. 33rpm the grooves are shallower, which allows for greater track length - usually done when the track's been made slightly too long to fit on a 45rpm pressing or there are two tunes on one side (always a bonus)

I prefer 45's though - louder and more dynamic.

Sorry - to answer your question, I believe 45rpm pressings are of higher quality.

45 is better sound quality....BUT....who cares get the one you want more. its the whole point of getting records. get what you want and love and fuck everything else!

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33rpm record with two mixes on one side are usually poor quality the first record is good but then due to groove distortion the hiend of the second record sounds crap...perfect example the b-side of coldharbour selection vol.1 solidglobe sahara sounds brilliant but then indian hasshish sounds crap.

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yep, 45 has better sound quality

Basically, at 45rpm there is more information passin under the needle at one time compared to at 33rpm, and so since theres more information you then get a better sounding track, think of it as bitrate, like 33rpm is 128K and 45rpm is 192k (I know thats not what there equivalent to, but you get the picture).

quote:

Originally posted by DannyO Basically, at 45rpm there is more information passin under the needle at one time compared to at 33rpm, and so since theres more information you then get a better sounding track, think of it as bitrate, like 33rpm is 128K and 45rpm is 192k (I know thats not what there equivalent to, but you get the picture).

This is what I think too, but also, doesnt the 33rpm have so good quality, so it can be better?

I mean, vinyl has good quality because of analog source, not for speed. Maybe at 33rpm are passing the same information, only at 45rpm is the sound more "stretched".

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quote:

Originally posted by DJ_Hailstone This is what I think too, but also, doesnt the 33rpm have so good quality, so it can be better? I mean, vinyl has good quality because of analog source, not for speed. Maybe at 33rpm are passing the same information, only at 45rpm is the sound more "stretched".

hmm maybe, I dunno for sure.

I've never been able to tell the differance IRL myself... I really wouldn't worry about it, I'd rather have the extra mixes.

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so then 78rpm records must have amazing quality?

To me, I always think that a 45 sounds like a cd does when played in a pioneer cdj (with the legato thing, or whatever its called)

I'm sure it doesnt technically, but thats always what it reminds me of.