[flash]

i suppose if you have perfect pitch, which would tell you what a tone was supposed to sound like, and then compared it to what you hear from the sub, then yes, that could be done - the harmonics would still be tough, but you might be able to sift through it



so far, out of all the audio engineers i have met over the years of being one myself, i have met 4 people who can do this within 10hz - most have what is called "relative pitch" - this gets you close, but to design a box, you really need a graph - harmonics are very tough to nail down by ear, and i'm not sure it's even possible



that doesn;t mean that you can't get a good sounding box by ear - you can - it just means that it would be very toough to get a perfect one that way - it all depends on how good you want it

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[LivingDust]

It turns out between a surprise emergency at work and a progressive dinner party with our Porsche club (Some very good food) I did not get to mess with my stereo.



The web page for NCH that I posted has not only the tone-generator, but also a tone-detector (separate program). I have no idea how the tone-detector works. It looks like you have to buy it to find out. It might just tell what frequency it is "hearing" but what I would hope is that you can see the wave and look for undesirable under/overtones.



The tone-generator can generate a variety of wave types and multiple frequencies if desired. The tones can be saved as .wav files or .mp3 files as well as just play the tone through what ever speakers you have attached to the computer.



I do use MP3 for my car stereo, mostly because of the number of songs I can put on a CD, but I never encode less than 320vbr. Even at 320vbr, it is not a lossless encoding, but it is very good. If I listen to them side by side, I can hear a difference, but when you factor road and car noises, I doubt I will miss them.

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[LivingDust]

I found a description of tone-detect here:

http://www.nch.com.au/action/misc.html#TONEDET

ToneDet - Tone Detector



ToneDet is used to monitor an audio signal a for specific frequency tone or multiple tones. Althrough it can detect any audio frequency, ToneDet is usually used to detect very low frequency tones that cannot be heard by humans. Typical Applications include Radio Network Broadcasts (to automatically trigger commercial breaks), Control Systems (To control remove systems over an audio system), Remote Audio Switches (To switch signals on and off using tones), Sub-band information transmission (To transmit information over an audio transmission) and many more related applications.

So this is not a sound analyzer, but just something that listens for a tone in order to trigger a response, like starting a program etc.



But on this page:

http://www.hitsquad.com/smm/mac/SPECTRUM_ANALYZERS/

There are a bunch of share-ware spectrum analyzing tools for a Mac....

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[flash]

there is audio analyzer software out there - a lot of guys use it to tune PA systems on the road because every venue sounds so different, and some of them are just too hard to nail down any other way - i always had a hardware type analyzer in my front of house rack, but this will do the same thing on a laptop - the package i'm giong to use is called "smart live" - the disk will be here in the next day or two

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[Dirk]

The PO of my '93 CS put some sound into it.

I recently lifted the board above the rear seats to reveal the amps below.



       



1 amp is used to drive the four 'regular' speakers + front tweeters the other amp is feeding the sub woofer in the back.



       



The radio is a JVC KD-SH77R that has some decent equalising options.



It is loud.

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[rhudeboye]

"let's hear that 200W work the Kicker, as you pull into the museum parking
lot on the 23rd, windows rolled down and blasting Wu Tang Clan 's latest masterpiece... [img]style_emoticons/<#EMO_DIR#>/wink.gif[/img] [img]style_emoticons/<#EMO_DIR#>/laugh.gif[/img]"

A. I love WuTang
B. Thanks to all who chimed in on this thread. I was searching all over the forum about sub woofer recommendations and couldn't get any solid answers. I was about to post a new thread when I was lead to this one by darryls comments in another post from 2006.

Now, Funny how these things always go back to Flash.

Flash-
What was the model of Bazooka that you had?

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[flash]

it was the 6.5" 200W self powered with the remote

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[rhudeboye]

Thanx

I may just do a 100 watt and I have read some good things on their passive units as well.

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[flash]

i tried the 100W - not enough bump - at higher levels it just broke down

the passives are ok, but like any of them, powered or not, they aren't super tight - they provide a nice low end support, but the shell is the limiting factor, and it resonates when you really push it

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[rhudeboye]

With the passive units you will need a separate amp correct. Or could I go right from the Avics sub-out RCA jacks to a passive sub and be in business?

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[flash]

with a passive sub, you need an amp - you will also have to have a crossover and gain control of the sub frequencies (the avic should have this if your amp does not)

welcome to the slippery slope

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[rxter]

<b>More Bass.....</b>


   

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