MoonBassAlpha Posted June 6, 2010 Share Posted June 6, 2010 Ok, I'll try not to waffle on too much, but here's the background: About 25 years ago, I got a nice new Electrovoice EVM12L for a bargain price and put it in a little cabinet to use as a bass and guitar extension cab. It sounded fine for guitar but was always a bit farty for bass. I looked at it yesterday and realised that there was no gasket between the speaker and baffle (for all these years!) so I fitted one and bingo! no farty even on a 5 string. So now it is capable of making a decent sound, I think it could use tuning. Internal dimensions are 38x35x19 cm and there is a 3" hole in the baffle, no porting (hole for a tweeter?) Given the smallish volume, should I block the hole off, or add a port tube to tune the cab? There seems enough top end to not need a tweeter. Any suggestions re tuning length etc. welcomed, cheers. Jules Quote Link to comment Share on other sites More sharing options...
Mr. Foxen Posted June 6, 2010 Share Posted June 6, 2010 Find some pipe to fit in the hole and try a few lengths, or sleeve two bits so they are telescopic and try a few tunings. Quote Link to comment Share on other sites More sharing options...
Bill Fitzmaurice Posted June 6, 2010 Share Posted June 6, 2010 Add a four inch duct to the port. Quote Link to comment Share on other sites More sharing options...
MoonBassAlpha Posted June 7, 2010 Author Share Posted June 7, 2010 Thank you very much Bill, much appreciated. And thanks Mr. F, good idea, I should have thought of that one! How is the cab volume?, just about enough? (not that I can do anything about it anyhow!) Quote Link to comment Share on other sites More sharing options...
MoonBassAlpha Posted June 7, 2010 Author Share Posted June 7, 2010 Just found out a tennis ball tube is about the right diameter! I'll keep you updated once I've fitted it. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.