ShinObiWAN
Ex Member
Hello fellow DIY'ers,
After a couple of years away from box designing I've decided to get back in the game. One of the motivations for this is a distinct lack of 'real' subs in the under £600 bracket.
At the beginning of this my aim was to create a sub that was comparable to the best audiophile sub that was available around the £2000 mark. Whether my design can is entirely academic and what looks good in phase, group delay and SPL plots can only be judged after the theory has been transformed into reality.
With this heady goal in mind, I spent a large amount of time researching drivers, enclosures and active crossovers and amps.
As well as this I set myself the goals of:
-70l Volume Maximum
-Flat to 20hz Minimum
-Less than 16hz at -3dB
After a month of research I've ended up selecting the following components:
Driver: 10" Volt 2500.1 = £270
The best 10" in the business, so it only seemed fitting that I should design and optimise my enclosure around this astounding driver.
Amp: BK 650w Mono Class D Digital Amp = £250
Low distortion, high current digital amp. Perfect for a subwoofer design that needs lots of power on tap for excellent dynamics and control.
PEQ/FBD: Behringher DSP1124P = £99
Essential in any room bar an anarchoic chamber. Helps get a flat response throughout the frequency range of the sub.
Cabinet: Ported
Using double walled 3/4" MDF or 1.5" thoughout (Baffle is 2.25"). Tuned to 18hz flat and 15hz at -3dB. Cabinet extensively braced throughout.
Blueprint:
Kinda difficult to see what exactely is going off here and some bits are missing in this diagram
Anyway I've just completed the side walls so I'll post pictures once I get to a decent stage
After a couple of years away from box designing I've decided to get back in the game. One of the motivations for this is a distinct lack of 'real' subs in the under £600 bracket.
At the beginning of this my aim was to create a sub that was comparable to the best audiophile sub that was available around the £2000 mark. Whether my design can is entirely academic and what looks good in phase, group delay and SPL plots can only be judged after the theory has been transformed into reality.
With this heady goal in mind, I spent a large amount of time researching drivers, enclosures and active crossovers and amps.
As well as this I set myself the goals of:
-70l Volume Maximum
-Flat to 20hz Minimum
-Less than 16hz at -3dB
After a month of research I've ended up selecting the following components:
Driver: 10" Volt 2500.1 = £270
The best 10" in the business, so it only seemed fitting that I should design and optimise my enclosure around this astounding driver.
Amp: BK 650w Mono Class D Digital Amp = £250
Low distortion, high current digital amp. Perfect for a subwoofer design that needs lots of power on tap for excellent dynamics and control.
PEQ/FBD: Behringher DSP1124P = £99
Essential in any room bar an anarchoic chamber. Helps get a flat response throughout the frequency range of the sub.
Cabinet: Ported
Using double walled 3/4" MDF or 1.5" thoughout (Baffle is 2.25"). Tuned to 18hz flat and 15hz at -3dB. Cabinet extensively braced throughout.
Blueprint:
Kinda difficult to see what exactely is going off here and some bits are missing in this diagram
Anyway I've just completed the side walls so I'll post pictures once I get to a decent stage