Name: Nick Plusnin							 Year 12 Technology Studies, 2004

Minor Project (Subwoofer) - Final Evaluation
 
Rate your Project
	A	B	C	D	E	
Finish – Is it professional looking? 						
Time Management –Have you utilised the 15 hours provided effectively?						

1.	Do you consider the ‘subwoofer’ design to be an interesting Minor Project? Make comments and/or other suggestions
After making a pretty average major design project I enjoyed this minor project very much. I got to do some woodwork which I didnt do for ages so it was great. And a bit motivation booster to make this project work was that I got my car and that was all in my design brief and situation. I wanted to make something really good. For that reason I'd say that the subwoofer project is very intresting. It should defininenly be used in future year 12 classes. It would of been good to get some lunch time to do it, I worked flat out each lesson without fail and because I missed out on a few of the lessons because of illness I got a bit behind. That would be my only suggestion. Everyone seemed to enjoy it, very relevent for us all because were all getting into cars, some already have them so its great. Couldn't have been a better minor project. 

2.	How well does your subwoofer operate (i.e. what is the sound like)? 
After testing out my subwoofer with the class setup I was really happy. The sound quality and bass range impressed me, obviously once its tuned it will be better with my sound system in the car because it will have optimal conditions to perform. But yeah, I heard no distortion and no leaking sound from the box so I have done well in sealing it. From listening to other subs which used a box WITHOUT insulation padding on the walls I could tell that the sound quality with the insulation installed is much better. The music I used to test it out had some good low frequency to high frequency sounds. So like some really deep bass and some more melody parts which havent got much so I tested it in good range of ability.

3.	Compare your subwoofer size (volume), shape, porthole size, etc. with the specifications of the speaker. Justify
On the back of the blaupunkt subwoofer box there was some details on what volume I should use for certain requirements. I choose to make a sealed enclosure, not a ported one so I looked at the sealed chart and picked a 'Pounder' box which was based around a medium type box, so I had the volume requirements which are in my folio. And then did my calculations to figure out what size lenghts I needed for it to work. So in the end my design was based exactly on the subwoofers required volume so I cant go wrong. When calculating volume I had to make up a shape with angles and stuff. I choose to make a quite layed down box with a 30 degree angle. There were no requirements for shape of box so I used my imaginiation and creativity to make it a unique effort. 

4.	Critically analyse the aesthetics of your subwoofer.
I think I built my box really well to start with, when coming to insulating it with carpet underlay I cut it out well and when i came to fitting I didnt have enough staples so I used liquid nails. But I think this method worked for me because The glue kept all the unstapled edges down really well. So after it was all padded I then picked out my carpet from the hardware store. I found the perfect colour for it, a grayish coloured 6mm automotive carpet. Great stuff. My biggest issue was after gluing all the carpet on which wents smooth and professionally. I realised that I should of had the front sheet overlapy the edges so the when looking at the front u couldnt see the join. Which if you have a look now, u will see the edges but really, I dont have any glue leaking out so it isnt that much of an issue. Just something that I would change if I made it again. Other then that I couldnt be happier with it. I wouldnt change anything else. The finish looks really good I reakon. Friends agree.

5.	Please make any further comments you feel necessary relating directly to your Evaluation, not covered in other areas
One thing that I would like to add, at the end after I cut out the sub hole and terminal hole out of the fully covered box. (cut the carpet that is). I had really tight fits for both my sub and terminal. So in actual fact I dont really need screws, cause its that tight. Like its not overly tight where it can cramp or damage the sub and terminal. But its just a really nice fit which will benifit the sound quality, No leaking air. So even tho I wouldnt need to put screws in I will put some in, all 4 in the terminal but maybe only like 3 in the sub instead of the 7. 

6.	As a general summary, reiterate your original Brief and judge your results against it without repeating the detailed answers provided in the above questions.
Well, I'd say I forfilled my brief to the dot. Like, everything I thought when looking at my situation and then writing my brief I was thinking when making it. Many things like my cars boot size, and colour of interior finish of car. So it was really good to see the final result of all the hardwork. Nothing more satisfying that completing a task to the requirements and ideas that you thought up several weeks before.