Confused on crossover

[Dexlee]

I've managed to tweak my TA setting to bring the out the staging but I am at a loss at crossover issue. I dont exactly know which setting to select and afraid of risking to burn my speakers if select wrongly. I am running 2 way active and my P80 HU crossover offer these setting:

 

Low LPF: 25Hz, 31.5Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz

Slope: 36, 30, 24, 18, 12db/oct,

 

Mid HPF: 25Hz, 31.5Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz, 125Hz, 160Hz, 200Hz, 250Hz

Slope: 6, 12, 18, 24 db/oct

 

Mid LPF: 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10, 12.5k

Slope: 6, 12, 18, 24 db/oct

 

High HPF: 1.25k, 1.6k, 2k, 2.5k, 3k.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k

Slope: 6, 12, 18, 24 db/oct

 

Here's my system specs:

 

Speaker

Sensitivity: 91db

Frequency Responce: 42-24

NOM/MAX: 150/300W

Fs (Hz) : 51

 

4ch Amp

75 x 4 @ 4Ohm stereo

Frequency Responce: 10-50KHz

 

Apline active subwoofer SWD1600

Crossover: 60-160Hz

 

Need some advise here to help me to set the correct crossover setting or tell me which is the safe setting to avoid burning of speakers.

 

Thanks!!

Edited September 24, 2006 by Dexlee

[User12343]

 

 

Edited September 24, 2006 by User12343

[Dexlee]

Yes, I am trying different setting but just afraid that I might burned the speakers if set wrongly. Based on the specs, which are the safe range to play at? At least I could avoid the danger zone.

[User12343]

 

 

Edited September 24, 2006 by User12343

[Dexlee]

Guess I would have to engage bro kermit and bro Sarong1's help on wed next up.

[Hyun]

interesting leh .. i'm curious what guru User12343 deleted from his 2 posts!

 

anyway, u have a lot of specs there but

1) wats the speaker brand, model

2) have u found its webpage

3) what does it say about the speaker regarding frequencies it plays

4) it might even recommend u a crossover point

 

simple?

[Kwongwing]

You have actually not posted the specs most required for setting x-over settings for the 2-way component spkrs - the frequency response for the individual drivers, and the original x-over points.

In which case the thing is to use "safe" settings as a start.

For your tweeters: use High HPF: 2.5 or 3.15 KHz with slope setting at 18 or 24 db/oct

For your mid-bass: use HPF 50 - 100 Hz depending how much your driver can take, with slope setting at 12 or 18 db/oct;

LPF 2 or 2.5 KHz with slope setting at 6 or 12 db/oct

 

[Dexlee]

Hi bro Hyun and KW, the speakers is Diamond audio S600s. I couldn't find what is the freq response for individual driver. However the general freq response is stated as 42Hz - 22,000Hz.

 

It did not state down the original crossover point for the speaker but according to the manual, there are 3 crossover setting for tweeter (+2dB , 0dB , -2dB).

 

The manual can be found here:

 

http://www.diamondaudio.com/products/pdfs/HEX_Manual_A5.pdf

[Kwongwing]

Just use the settings I have recommended and tweak from there onwards to your listening preference.

The settings you have quoted are in fact settings on the passive crossover block to adjust the gains / attenuation for your tweeters - they do NOT apply for your active setup.

[Dexlee]

ok, will figure it out, thanks KW.

[Hyun]

the Fs of your tweeter is either 1500hz or 1600hz... i suggest you run your tweeter until about 3.15khz and slope them off -12. since u're running active u can mute off ALL other speakers and just listen to tweeters alone.

 

compare that with 3.15khz slope -18, and 2.5khz slope -18 or -24.

 

just listen for the lower frequencies and see if there's distortion. if no distortion, stick to 2.5khz. any lower u might find more obvious distortion. u can try if u want (2khz) but better stick to a steep slope of -24 or bigger number but ... not very wise lah.

 

this tweeter wasn't really designed to go below 3khz much.

 

oh ya, and if u want u can bring down the crossover on wednesday, see if we can operate on it, hehehe... no lah. just take a look. see what freq they set. maybe can guess.

 

bro Ractis selling some tweeters on www.sgsoundsystem.com.

Edited September 24, 2006 by Hyun

[Dexlee]

alright, thanks Hyun.

[Coolbreeze90]

Wah your system got alot os details...

 

sxxt i dunno what my has... Jia lat...

 

Have to go and find out liao... Damn sua koo....