Yes indeed , I must apologize with Nanook : he wasn't completely wrong ;
only after the first period
Because it is a voluntary act , as no teacher had asked the whole class to
build speakers . For what ? So the purpose must be clear : for listening to a
reproduction . How is this achieved ? What is/should be the final result ?
I like the big ol' speakers in the gym room
(no, it was a theatre and I guess they were...Altec ? )
only after the first period
Because it is a voluntary act , as no teacher had asked the whole class to
build speakers . For what ? So the purpose must be clear : for listening to a
reproduction . How is this achieved ? What is/should be the final result ?
I like the big ol' speakers in the gym room
(no, it was a theatre and I guess they were...Altec ? )
So next iteration would be : find a good speaker , suitable for the job .
Which job ? To reproduce all frequencies . Ok , this can't be done , let's
start with the famous compromise . At which level and in which ( kind of )
room . I was thinking of this ...if the efficiency of a loudspeaker seldom
raises 1% ( well , multy way increases efficiency ) , and we put in it
50 W which is a lot...OK , RMS ! So what we get is around 100 or more dB
which is the sound pressure , result of the 50 W into the coil .
O!
That's why energy transforms ...Thermic , like (old ) lamps
Which job ? To reproduce all frequencies . Ok , this can't be done , let's
start with the famous compromise . At which level and in which ( kind of )
room .
I was thinking of this ...if the efficiency of a loudspeaker seldomraises 1% ( well , multy way increases efficiency ) , and we put in it
50 W which is a lot...OK , RMS ! So what we get is around 100 or more dB
which is the sound pressure , result of the 50 W into the coil .
O!
That's why energy transforms ...Thermic , like (old ) lamps
Well, the main goal of the speaker is to apply the physics and math to something easier to understand. If I only had paper only my physics and math teacher would understand it and nobody else. If I build a set of speakers by using the math and physics in my papers I could show it in a more concrete way and also have some more fun during the project and stay more motivated.
I'm not aiming to build a very good speaker. As Nanook said, I could always scrap the cabinets and keep the drivers for another project. That's why I don't want to buy some el-cheapo crappy stuff that doesn't have the possibilty to sound good at all.
I'm not aiming to build a very good speaker. As Nanook said, I could always scrap the cabinets and keep the drivers for another project. That's why I don't want to buy some el-cheapo crappy stuff that doesn't have the possibilty to sound good at all.
Did I mention that I have a 10"+1"+WG
And reputed it quite good ,but
recently I feel a little hole ....
I thought my 10" was a full range !
Now reality: there's something missing below the tweeter level
Well , maybe up the tweeter level , but that's another point ( low cut
frequency of the system ) and probably domes can't move so much energy
above 20 KHz .
I still believe those speakers give me full 50+50 W sound power
And reputed it quite good ,but
recently I feel a little hole ....
I thought my 10" was a full range !
Now reality: there's something missing below the tweeter level
Well , maybe up the tweeter level , but that's another point ( low cut
frequency of the system ) and probably domes can't move so much energy
above 20 KHz .
I still believe those speakers give me full 50+50 W sound power
Now seriously : I would try an elliptical speaker, even if
it is difficult to find some. Some stereo tv sets may have
some nice speakers . If you put your hands on an LCD screen,
it's the same I used those tiny little speakers (with little boxes already)
with little horns and they became two nice tweeters .
Elliptical speaker mayallow a particular dispersion due to its oval shape , if vertically posed , I guess ...
it is difficult to find some. Some stereo tv sets may have
some nice speakers . If you put your hands on an LCD screen,
it's the same
I used those tiny little speakers (with little boxes already)with little horns and they became two nice tweeters .
Elliptical speaker may
allow a particular dispersion due to its oval shape , if vertically posed , I guess ...
Hi,
10 pages worth and your going round in circles getting nowhere fast.
http://www.humblehomemadehifi.com/download/Humble Homemade Hifi_Solo-103_copy.pdf
The FE103 in the above is around your stated budget.
FE103En - Fostex 4 inch Full Range Speaker - Europe Audio
Lots of info on the FE103 on the web, e.g. :
Adding and playing around with T.G's filter is worthwhile,
(using decent quality, not fancy quality components).
rgds, sreten.
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