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Would some PLEASE measure the radius of the flare on the 3" percision port. I have tried asking before but no luck, so try, try again. I just need to get the measurement to show a few lecturers in college the diff of airflow between a straight port and a deisgned flared port. It would cost me...

Just doing a bit of research here on flared ports and have my hands on some decent software in college (a few of ye have mentioned it before I think, ALGOR). I have done a few analyses on 3” ports with no flare, 30mm, 40mm, 50mm and 60mm radius flares. I used a frequency of 16Hz since this...

Any help with these would be appreciated 1. Using a tempest in a approx 200 vented enclosure, what Fb would you use which would give really good sound quality (ignoring SPL) and which would give you really high SPL (igoring sound quality and a very low Fb) 2. Is there any physical way of...

Hoping some one might be able to help me out here. I want to find out what is the actual pressure build up inside a subwoofer, more specifically my Tempest Adire aligment. I want to do an analysis of how much the MDF moves under the pressure generated using ALGOR (its a Finite Element Analysis...

Some might reply saying why bother building a different design, there is loads out there for the Tempest. Simply I need to come up with my own design because I need something that is smaller than the 194L SBB4 design but I also want it to be vented. I wanted something that would be about 140L...

I don't know how many of ye would have seen it but anyway. I am trying to design my own box for my tempest (kind of as part of college project), i read somewhere before of the dimension ratios that can be used that will reduce standing waves in the box. It was something like...

A question maybe for the serious DIY’ers or engineers. (A bit of a story but any help and I'ld be chuffed) I have just started my final year for my degree in engineering here in Ireland. As a final year project, I was hoping to make a injection mould for a extendable flared port for a...

My tempest arrived yesterday but am still waiting on my PE plate amp 250 watt from Parts Express. I am dying to try it out right now so is it alright if I hook up my ordinary hifi to the driver. It is 2 X 100watts @ 8 Ohms. If i feed in the LFE channel from my dvd player into the hifi and...

Since I am going to order my Tempest (15" driver) within the next few days and a Parts Express 250watt plate amp, I will start the MDF cutting any day soon to be ready for the sub. I done up a drawing of the sub in SolidWorks (if any of ye recognise this piece of software, its excellent). It is...

Hi everyone Since i will be asking ye lads about my diy Tempest enclosure soon enough, I will let myself break the ice with just 4 pics of my home cinema. I am just a student at the moment so just waiting for a job for the summer to save up for the Tempest driver and a PE 250amp. I am making...