eD Package Deals

[Mindspin311 10+ year member]

Of the deals they have on the front page of their site which would be better the single 15 or the 2 12's? and how long till the 15a.22 package is ready to ship?

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[mattj 5,000+ posts]

Personally id go for the 2 12s but thats my opinion. its all up to what you have room for, how much equipment you want in your trunk, your price range, and what you are looking to get out of a sub(s) and amp.

as far as shipping goes, im not sure. you could call eD and ask or perhaps kaosmoon, bigbassloyd, or rangerman can fill you in.

 

[Mindspin311 10+ year member]

Oh and does anyone have experience with the Avionixx amps?

 

[Randy Savage 5,000+ posts]

The 800.2 is a nice amp, my friend just got his today and we hooked it up to a 15" HC, bridged the amp at 4 ohms for a little under 1kw....it's a nice amp...lacks an on board subsonic filter, but that's about it..

Also does not have on board fuses, but we didn't have a problem with just the inline 100a fuse under the hood...

 

[Mindspin311 10+ year member]

What would I do about getting some type of ssf? What would a safe fuse rating be to have at my battery to protect from setting my car on fire in case something goes wrong?

 

[Randy Savage 5,000+ posts]

Pick yourself up an FMOD or get an x-over with a built in SSF...

An ANL 100a fuse should be fine for under the hood...

 

[Mindspin311 10+ year member]

Originally posted by snova031 Pick yourself up an FMOD or get an x-over with a built in SSF...

 

An ANL 100a fuse should be fine for under the hood...

FMOD? What is that, and where can I read up about it? Where would I run the x-over on the wiring from the amp to the sub?

 

[Randy Savage 5,000+ posts]

FMOD's...go to http://www.thezeb.com then look under Harrison Labs...

 

[Mindspin311 10+ year member]

Originally posted by snova031 FMOD's...go to http://www.thezeb.com then look under Harrison Labs...

So basically if I get a say 50Hz FMOD, any tone above 50Hz would be blocked by it, allowing only tones deeper than that to make it to the sub?

 

[Randy Savage 5,000+ posts]

No...they cut off the low frequencies...so if you got a 50 hz FMOD, nothing below 50 hz would pass through...

If you are going with a sealed box, there is no need for a SSF...

 

[Mindspin311 10+ year member]

Originally posted by snova031 No...they cut off the low frequencies...so if you got a 50 hz FMOD, nothing below 50 hz would pass through...

 

If you are going with a sealed box, there is no need for a SSF...

Ok now you are confusing me. I thought that a SSF was to only allow the lower frequencies thru, which are the bass notes. So what would a SSF have to be set at to filter the higher frequecies.

 

[Mindspin311 10+ year member]

Originally posted by Jmac A sub-sonic filter is a high-pass filter designed specifically for damaging bass frequencies.

 

So, basically ...

 

SSF = 30 Hz ... filters out frequencies from 0.1 - 29.9 Hz

LPF = 100 Hz ... filters out frequencies from 100.1 Hz and up

HPF = 100 Hz ... filters out frequencies from 99.9 Hz - 0.1 Hz

 

So, this would allow your subwoofer to play frequencies from 30 Hz to 100 Hz and it would allow your speakers to play 100+ Hz ... This above example would be great if you had a 12" sub in a ported box that was tuned around 35 Hz ...

So the SSF protects the sub from going too low and damaging itself? Correct? If not beat me over the head with a baseball bat.

 

[Mindspin311 10+ year member]

And a 50 Hz HPF FMOD would be the same as a SSF set at 50Hz?

 

[Mindspin311 10+ year member]

Originally posted by Jmac Yes ... but you don't want a 50 Hz HPF FMOD ... unless your box is tuned to 60+ Hz

 

You either want a 30 Hz (Ported box tuned over 32 Hz) or a 20 Hz (Ported box tuned between 25-32 Hz)

So in reguards to sealed enclosures, set the SSF or HPF to the frequency the box is tuned to?

 

[wesleysh 10+ year member]

I don't think your understanding why you want a Subsonic Filter with a ported enclosure and not a sealed one.

A sealed enclosure has NO tuning frequency per se'. Ported does. In simplistic terms bad things happen to your sub at frequencies BELOW the tuning frequency in ported enclosures. So if you have a ported box tuned to say 30hz, it might be a good idea to cut out all frequencies below that point, or at least in that range (say 25 or so). A subsonic filter is used for this. But if you tuned your box to 30hz, and never listened to a single song that played anything below 30hz, there would be no need for a SSF.

Sealed enclosures have no inherent problems with lower frequencies. So if you go sealed you won't NEED a subsonic filter, though most would recommend one just to save the sub and more efficiently use available amplifier power.