Blog Forums DIY Speakers and Subwoofers My first DIY speaker help me fix them Reply To: RE: My first DIY speaker help me fix them

#12842
tvor-ceasar
Moderator

Looking at the PC83-8, it is actually a pretty good driver, spec-wise.

Sealed box (yours is 0.17 cu.ft.) starts it dropping at around 200 Hz, gently rolling of to a -3dB of approximately 95 Hz.

If you were to keep that box and add a 1″ port of around 2-7/8″ L, it calcs down to somewhere around 58 Hz Fb and a F3 of somewhere around 49 Hz. It’d be a fair chance you’ll like it better ported.

To illustrate:

Your tweeter is a 4 ohm unit with a higher sensitivity, so adding a resistor to pad it down will help tame it. I don’t have the time tonight to check it out, but maybe tomorrow.

If you go here: http://techtalk.parts-express.com/filedata/fetch?id=1134633 and find the frequency listed for the crossover itself (3500-4000 @ 8 ohm, depending on where you read), you’ll see that at 4 ohms it is crossing over quite a bit higher (between 6500-8500, probably around 7000+-). That, combined with the higher SPL rating is why it feels that way. Like I said above, pad it down and you’ll be much happier.


©2022 KLEO Template a premium and multipurpose theme from Seventh Queen

CONTACT US

We're not around right now. But you can send us an email and we'll get back to you, asap.

Sending

Log in with your credentials

or    

Forgot your details?

Create Account