Ja bi nabacio neka moja razmišljanja (totalno početnička) a vi me savjetujte kako i što napraviti, svaki savjet je dobrodošao
Ja sam to zamislio nekako ovako:
- ulaz iz AV receivera bi dolazio na OVAKVU pločicu. Iz nje bi išao direkt u pojačalo, ne bi dodavao nikakve dodatne EQ, filtere, pretvarače...bojim se da ja to nikada ne bi podesio kako treba a i komplicira cijeli projekt.
- pojačalo: obavezno D klasa. Zbog cijene i činjenice da je uglavnom spremno za upotrebu. Razmišljam o ovome. To pojačalo je detaljno opisao Davorin u OVOJ temi i pojasno mi neke stvari na čemu se opet zahvaljujem i izvinjavam na eventualnim neugodnostima s moje strane. To mi se čini kao dobar izbor baš zbog činjenice da radi u bridge modu gdje daje 180W što mislim da je dovoljno za neki mali sub. A i cijena je više nego dobra.
- driver - nemam pojma koji. Niti gdje kupiti ali možda netko zna koji driver preporučiti prema ovom naputku g. Elliotta:
I will not suggest drivers, and it is entirely up to you to find suitable components based on manufacturer's details. I suggest that you look at loudspeakers intended for car sound systems, as these usually have a reasonable efficiency and low Vas. The range is enormous, and there are many excellent drivers that will not cost the earth. There are also many other excellent drivers that will cost the earth - your choice.
A simple test for drivers is to apply a signal at 20Hz from a clean audio oscillator. Using an amp of about 100W or so, and with the driver mounted in an enclosure of no less than about 28 litres (1 cubic foot), increase the level until the amp starts to clip - this will be immediately audible! Just below the clipping level, listen carefully for any audible frequency that is not 20Hz (which itself is virtually inaudible). In particular, if you hear 40Hz or (more likely) 60Hz, the speaker is distorting, and generating harmonics. With a good driver, you should be able to see the cone rushing back and forth, but should only feel the air movement - no audible harmonics should be heard.
- kutija - nemam pojma kakva i kako ju napraviti. Znam samo da treba biti od što debljeg materijala i čvrsto napravljena.
Pa eto - zabava za forumaše za ove hladne dane!