Jump to content
View in the app

A better way to browse. Learn more.

SSA® Car Audio Forum

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Featured Replies

Posted

Hello all.

Hope you`re all doing fine ;)

I strill haven`t had a chance to alter the Escort install.

But I have been messing about with my vectras boot install.

Check this out:

See this weird box...

6th Order bandpass or simply a tunnel in a boot.

S6303657.jpg

S6303658.jpg

S6303659.jpg

This box is far better than any box I have ever made :o

It plays low.

It plays loud.

It plays a very wide musical frequency with accuracy and is practically flat in it`s overall frequency response.

O.K. The system specs.

Vectra Sri - Boot System.

1x HMM Box- That`s what I`m calling it - After the ideas from a guy called Henry & Mazdawg & Me making the thing to see what happens.

1x SPLd S-1200d (1200wrms @ 1ohm)

2x Brand new - Stereo Integrity 12" Baby Magnums (500wrms power handling per sub)

1x 70Ah Leisure battery

1x Sony Cheapo Head Unit

THE SCORES :thumbsup:

Using only 1200wrms of power this system does the following.

((((Propper Droppers))))

Total Average Score = 141.4dB (I`m confident this score will get louder... )

Peak Freeq = 142.8dB @ 22Hz

40Hz= 140.3dB

33Hz= 140.0dB

25Hz= 141.2dB

20Hz= 142.7dB

10Hz= 130.7dB

And I tested it using the dB drag rules too.

Readings taken from 60Hz downwards + the ((((Propper Droppers)))) SPL frequency format.

60Hz= 138.0dB

55Hz= 140.3dB

50Hz= 141.7dB

45Hz= 141.7dB

40Hz= 140.3dB

33Hz= 139.9dB

25Hz= 137.9dB

20Hz= 136.5dB

Is that good stuff or what!!!! ? ? ?

  • Author

Don`t forget my last ported box need 2500wrms to hit the same sort of dB figures.

The ported box never played over such a wide frequency range either.

This box is doing more or less identical scores using.

Only 1200wrms. Half the power of the previous system!!

Over a much wider range of frequencies.

Edited by Mega Heavy Bass

  • Admin

Very nice work.

Damn, those are pretty impressive scores.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

Recently Browsing 0

  • No registered users viewing this page.

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.