You are not logged in. [Log In]


Forums » General Discussion » Technical Questions » 3dB frequency point of my M3's?

Page 4 of 4 < 1 2 3 4
Topic Options
Rate This Topic
#338732 - 02/16/11 12:47 PM Re: 3dB frequency point of my M3's? [Re: MarkSJohnson]
alan Offline

connoisseur

Registered: 01/29/02
Posts: 3267
Loc: Toronto/New York/parry Sound
Hi Mark and Aunty Em,

Yes, you are correct. Moreover, the vast majority of LPs had no really low frequencies below 30 Hz on them because most modest or inexpensive commercial phono cartridges wouldn't track the frequencies. It was common in the mastering of LPs to roll off lower frequencies sharply below 30 Hz. The exception were some half-speed mastered LPs and a few audiophile labels like Telarc.

Also, a subwoofer used with any turntable will tend to reproduce sub-sonic tonearm/cartridge warp frequencies, generating "woofer flap"--the woofer visibly going in and out trying to reproduce the ultra-low resonances, at 12 to 15 Hz, wasting amplifier power and creating a type of Doppler distortion.

Heavens, when I get into describing all the things that are wrong with analog vinyl playback, I can scarcely believe how we put up with it! Of course, the only alternative back then was tape, preferably open-reel. Even the cutting lathes used to master LPs had audible rumble components.

I recall a few audiophile LPs that had huge groove excursions, frequencies to 20 Hz and lower, which we used for phono cartridge tracking tests: the "1812" Overture (Tchaikovsky) on Telarc. The canon shots would literally cause most cartridges to skip out of the groove.

Cheers,
Alan
_________________________
Alan Lofft,
Axiom Resident Expert (Retired)

Top
#338736 - 02/16/11 01:19 PM Re: 3dB frequency point of my M3's? [Re: alan]
Emzdogz Offline
veteran

Registered: 10/30/09
Posts: 110
thanks for chiming in, Alan. I simply won't worry about using the sub while listening to LP's.
smile
_________________________
Aunty Em
Tampa, FL

Top
#338741 - 02/16/11 01:38 PM Re: 3dB frequency point of my M3's? [Re: Emzdogz]
alan Offline

connoisseur

Registered: 01/29/02
Posts: 3267
Loc: Toronto/New York/parry Sound
Oh, sure, I enjoyed writing about vinyl again and all the technical details of vinyl playback.

Alan
_________________________
Alan Lofft,
Axiom Resident Expert (Retired)

Top
Page 4 of 4 < 1 2 3 4

Moderator:  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 
Forum Stats

15,347 Registered Members
16 Forums
24,214 Topics
428,478 Posts

Most users ever online:
883 @ 03/04/17 05:06 PM

Top Posters
Ken.C 18044
pmbuko 16437
SirQuack 13625
CV 11735
MarkSJohnson 11445
4 registered (craigsub, Rjlitho, BBIBH, bridgman)
345 Guests and
3 Spiders online.
Key: Admin, Global Mod, Mod
Newsletter Signup