At what Hertz range does mid-range lie?

Lost81 · « **on:** 23 Oct 2004, 04:36 pm »

Hi guys,

What Hertz range constitutes "mid-range"?
And what Hertz range constitutes "bass"?

The Sprague TVA range of capacitors are described as excellent for bass, but suffer in the midrange and highs.

I have a pair of monoblocks serving below 110Hz, and am thinking of swapping the Nichicon 100uF 100V electrolytic by-pass capacitors (good mid range, strong bass, good highs) for the Sprague 100uF 100V (fantastic bass, moderate mids, slightly indistinct treble).

Thanks,

-Lost81

WerTicus · « **Reply #1 on:** 23 Oct 2004, 07:03 pm »

i dont think there is any specific values

sub bass is > 20hz i can tell you that!

and ultra sonic is < 20khz!

but ummm

if i were to take a guess i would say bass is 20 - 100hz mid bass is 100 - 500hz midrange is 500 - 3000 ... and 3000+ is treble

but thats definatly debatable even within my own mind.

mcgsxr · « **Reply #2 on:** 23 Oct 2004, 07:08 pm »

I might go as high as 5K, but somewhere between 4K and 6K the tweeter is into its' own. That must be treble.

Mark

Lost81 · « **Reply #3 on:** 23 Oct 2004, 08:18 pm »

Thanks, guys

-Lost81

Gordy · « **Reply #4 on:** 23 Oct 2004, 08:46 pm »

Lost 81, Would this help? See the bottom chart...

http://music.theory.home.att.net/insrange.htm

Lost81 · « **Reply #5 on:** 23 Oct 2004, 09:19 pm »

Quote from: Gordy

Lost 81, Would this help? See the bottom chart...

http://music.theory.home.att.net/insrange.htm

Thanks, Gordy!

Yes, it does immensely!

Cheers,
-Lost81

_scotty_ · « **Reply #6 on:** 23 Oct 2004, 10:05 pm »

Here are couple of links you may find helpful. http://www.vibrationdata.com/piano.htm
http://www.digitalprosound.com/2002/03_mar/tutorials/mixing_excerpt1.htm
The midrange starts sooner than one might think and ends later as well. Bass,midrange and treble are arbitrarily applied terms that designate a specific frequency range for convenience only. Music is not that simple and as you can see it is a rare
instrument that a very narrow range of fundamentals and overtone series.
You really need something that is good at all frequencies. You might check out Reference Audio Mods or Parts Connexion for caps that meet this requirement. Scotty

jeffreybehr · « **Reply #7 on:** 24 Oct 2004, 02:08 am »

Lost, these terms are NOT arbitrary, having been well defined and accepted for decades.

The relatively well accepted definition of the range of human hearing is approximately 20Hz (Hertz, = cycles per second) to 20,000Hz (or 20KHz). That's nominally 10 octaves and they're divided as follows--bass is the bottom 3 octaves of 20 - 160Hz, midrange is the middle 4 octaves of 160 - 2560Hz, and treble is the highest 3 octaves of 2560 - 20480Hz.

WerTicus · « **Reply #8 on:** 24 Oct 2004, 06:22 am »

awesome so i was pretty close

nice to know good work team!

_scotty_ · « **Reply #9 on:** 24 Oct 2004, 11:16 am »

To mildly rebutt jefferybehr,A cymbal can have a fundamental frequency of lower than 100Hz with a 15kHz overtone that has almost the same intensity.Also notice the very fast rise time exhibited by the instrument's waveform. Where does this instrument reside, the bass,midrange or treble region of the music spectrum? This is why I consider these divisions arbitrary. Musical instrument spectrums don't as a rule don't fall neatly into these subdivisions. See link http://www.soundonsound.com/sos/may02/images/synth3.gif?session=5d7c0e092d37c0915261827ee0f432cb
It is a mistake to subdivide the frequency spectrum that musical instruments produce and weight one area over another.No single portion of the musical spectrum is more important than another. Listening to live music is a gestalt
experience and properly reproducing it requires dealing with it in as holistic fashion as possible. It should be regarded as something that is indivisible once it is commited to a recording medium. Scotty

jeffreybehr · « **Reply #10 on:** 24 Oct 2004, 06:56 pm »

Scotty, I'm not classifying musical instruments, I merely offered the industry-standard definitions of the 3 principal bands of audible noise. Your cymbal's sound obviously has components of all 3 general bands; I'm not trying to put it anywhere.

Lost81 · « **Reply #11 on:** 24 Oct 2004, 10:06 pm »

Quote from: _scotty_

It is a mistake to subdivide the frequency spectrum that musical instruments produce and weight one area over another.No single portion of the musical spectrum is more important than another. Listening to live music is a gestalt experience and properly reproducing it requires dealing with it in as holistic fashion as possible. It should be regarded as something that is indivisible once it is commited to a recording medium. ...

Hi scotty,

Thanks for your input.

The reason why I am emphasizing one portion of the musical spectrum over another is because my bass monoblocks only deal with 110Hz and below. Therefore, it makes sense to weigh the performance of bass for the bass monoblocks since any frequency above 110Hz are filtered by the crossovers. The TVA series of the Sprague capacitors have been described as having fantastic bass when used for power supply bypass.

Similarly, I am looking into Elna Cerafines for the midrange and treble as they have a fantastic midrange and highs, but have a somewhat subdued bass--which isn't a problem for my midrange/treble monoblocks since anything below 110Hz is filtered out by the crossovers.

I am weighing one musical area over another because each amplifier is being specialized to deal with a specific range of frequencies--much like the tweeters, midrange, and woofers of speakers.

Cheers,
-Lost81

_scotty_ · « **Reply #12 on:** 25 Oct 2004, 12:27 am »

I would recommend Jensen 4 terminal caps for your application. They are excellent everywhere. Scotty