low bass CD suggestions ( <20Hz) - diyAudio
Go Back   Home > Forums > General Interest > Music

Music A place to discuss the thing we are doing all this other stuff for

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 24th March 2006, 03:26 AM   #1
sphinx is offline sphinx  Canada
diyAudio Member
 
Join Date: Nov 2004
Location: Toronto, Ontario
Question low bass CD suggestions ( <20Hz)

Can anyone recommend any CDs with bass information below 20Hz?

I do already have all the low bass Telarcs (1812, Toccata and Fugue, Porgy&Bess). Not interested in car audio synthesized bass... I'm looking for the real thing!

Thanks...
  Reply With Quote
Old 24th March 2006, 04:43 AM   #2
lndm is offline lndm  Australia
diyAudio Member
 
Join Date: Mar 2006
Location: nsw
That Toccata and Fugue Telarc is really something isn't it? Was just listening to it the other day.

It's been a while since I read this, but I think the cd standard cuts off at 20Hz?
  Reply With Quote
Old 24th March 2006, 05:19 AM   #3
diyAudio Member
 
Join Date: May 2002
Location: Switzerland
There are two CDs with movie soundtracks conducted by Erich Kunzel (also Telarc) that contain several sequences going down to 5 Hz. One one of them is the start of a space shuttle used as intermission. Now THAT is a broadband signal !
The name of one of those CDs is "The big picture" the other one I'd have to check first.
And there are also some test CD's by the Swiss Highend Society. One piece that goes down to 16 Hz is the following:
http://www.swisshighend.ch/AudioFile...ns/track13.mp3

BTW: If your system is going below 20 Hz you do not necessarily have to feed it such extreme program material in order to enjoy it. Stuff like Eric Clapton's "unplugged" greatly profits form systems that are going really low even though there is no "real" content down there.

Regards

Charles
  Reply With Quote
Old 10th April 2006, 04:47 AM   #4
diyAudio Member
 
Join Date: Jan 2006
Location: Yu
Maybe Jim Brock- tropic affair
  Reply With Quote
Old 10th April 2006, 05:48 AM   #5
diyAudio Member
 
Zero Cool's Avatar
 
Join Date: Sep 2004
Location: MN
Grace Jones Slave to the Rythm has a track with a sub sonic note in a couple of spots. not sure if its really supposed to be there as is down around 5 hz. MOST cd players will not even reproduce it. but a few will.

I discovered this purley by accident many years ago. I had just purchased a JBL B460 Subwoofer. a BIG 18" sub in a 8cu/ft cabinet. I was using 1200watt bridged mono amp to run the sub and i had just got everything hooked up and played my favorite track off the cd. a everything was working ok so i turned up the volume and just as i did. the WHOLE FLOOR in my apartment felt as if it was moving up and down. i looked over and the cone and it was moving huge amounts of air but i couldnt hear anything, i looked over at the amp and the meters are pegged! and just as i reached for the volume control to turn it down. it went away! scared the bejezus out of me!

So im checking all my connections and everything is working and seems ok so i grab the volume control again. everythiong still working fine and then BBRBRBRBRBBRBRBBRBBR it happens again. so this time i turn down the volume and rewind the track a bit and sure enough in two spots there is something there. really really low.

I sold that sub long ago but but even with my Hales Revelation 3's i can hear or maybe i should say feel it in the same spots. but at a MUCH lower level.
  Reply With Quote
Old 10th April 2006, 01:06 PM   #6
sphinx is offline sphinx  Canada
diyAudio Member
 
Join Date: Nov 2004
Location: Toronto, Ontario
Zero Cool, Yes I do have Grace and I the CD does have some impressive low end..makes for a great demo.


Valvewizard, I will give Jim Brock- tropic affair a try!


Charles, The Telarc Star Tracks CD (has the same track as the one you're referring to )does have some very low frequency content but some of it sounds like a kid created it on his PC...I much more enjoy the tracks with "natural" bass but that CD is still a good demo. I'll see if I can find the Swiss over here.


lndm, I love the Toccata and Fugue Telarc...I could bounce my remote controls off my coffee table with that track. Most mid to high end CD players are capable of producing output down to 5Hz. I used a spectrum analyzer to confirm this...Telarc 1812: significant output down at 8Hz. Of course that's to be expected because those cannon shots are probably about as close to a "perfect" impulse response as one can naturally record (not including digitially created)!
  Reply With Quote
Old 10th April 2006, 06:54 PM   #7
karlw is offline karlw  United States
diyAudio Member
 
karlw's Avatar
 
Join Date: Apr 2006
Location: New Mexico
Check out "Holst - The Planets" by Montreal Symphony. This is a 1980s recording. But I think it is in the "Jupiter" part, there is some kind of organ pedal note that just shakes the house, even with smaller speakers. Must sound insane on a larger system.

-Karl
  Reply With Quote
Old 2nd May 2006, 01:31 PM   #8
Ric_LV is offline Ric_LV  Latvia
diyAudio Member
 
Join Date: Jul 2004
Location: Riga
Default I can generate low frequencies

I have a keyboard at home and I can record low tones for you. When I select a blues organ and play the lowest note all I can see is that my subwoofer's speakers are just moving (very rapidly - huge excursion!) but I can barely hear a sound. I actually just feel it... I don't know if you will ever find a natural sound under 20 Hz, not from a music instrument. You'll only find unnatural sound from a digital source, like keyboard.
  Reply With Quote
Old 22nd May 2006, 01:54 PM   #9
jives11 is offline jives11  Europe
diyAudio Member
 
jives11's Avatar
 
Join Date: Mar 2004
Location: Hampshire
Some recordings made in the Kingsway hall in London have some extremely low notes generated by the Tube trains operating 50' underground. Quite a few DECCA's I have include this feature.

Q: How low does CD go though ? I thought it didn't go lower than 20Hz or higher than 20Khz
  Reply With Quote
Old 22nd May 2006, 03:32 PM   #10
AKN is offline AKN  Sweden
No snake oil
diyAudio Member
 
AKN's Avatar
 
Join Date: Aug 2005
Location: In the middle of Sweden
Send a message via MSN to AKN
The CD standard permits bandwith down to DC.

On CD players often have HP filter implemented to eliminate risk of putting constant DC to amplifier.
Look at spec on CD player, they often have bandwith down to 5-10Hz. Lower cutoff also depends on input imput impedance of aftercoming amplifier.
Some CD players have DC connected stages but instead have DC servo that need some kind of cutoff freq to be able to center output to DC in resonable time. Of course it is possible to have much lower cutoff with less cap value this way.

It is also possible to make stages DC connected without DC servo and have true respose down to DC but there is probably need for manual DC trim if not tolererating some constant small DC on output.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Suggestions on low bass music Toast_Master Music 37 3rd September 2009 11:00 AM
Suggestions on how to calm bass down on Wharfedal Pacific PI 40's mixter_v Multi-Way 12 1st September 2008 02:24 AM
Bass boosted preamp, suggestions pls... Dxvideo Chip Amps 0 10th August 2007 02:25 PM
Dalesford Bass Driver - Any suggestions for a replacement? MCH786 Multi-Way 2 1st January 2007 03:25 PM
suggestions for a good bass guitar amp build offpeak808 Instruments and Amps 7 7th October 2005 09:58 PM


New To Site? Need Help?

All times are GMT. The time now is 12:44 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2