COMPLETED PROJECTS:
3 Way speakers
Drivers:
SEAS Prestige 27TFF (H0831) Fabric Dome Tweeter (T)
SEAS Prestige P18RNX/P (H1350) 7" Poly Cone Woofer (W)
Peerless 830667 8" Paper Cone SLS Subwoofers (SS)
Powered by:
DIY PassLabs F5 for T (monoblock per channel)
DIY LM3886 for W (monoblock per channel)
DIY TAS5630 for SS (stereo)
Crossover:
miniDSP for WT
miniDSP for SS
SEAS Prestige 27TFF (H0831) Fabric Dome Tweeter (T)
SEAS Prestige P18RNX/P (H1350) 7" Poly Cone Woofer (W)
Peerless 830667 8" Paper Cone SLS Subwoofers (SS)
Powered by:
DIY PassLabs F5 for T (monoblock per channel)
DIY LM3886 for W (monoblock per channel)
DIY TAS5630 for SS (stereo)
Crossover:
miniDSP for WT
miniDSP for SS
Pass Labs DIY First Watt F5 mono-blocks
"A push-pull Class A amplifier, utilizing JFETs and MOSFETs in a very simple two stage complementary circuit.
No capacitors anywhere in the circuit. (except in the power supply, of course!)
The distortion is very low, between .001% and .005% at 1 watt."
Dual mono-block design, with heat pipe based heat-sinks.
Sounds excellent. When paired with proper speakers, there are no speakers, just music.
Powering Ts in a 3 way configuration.
No capacitors anywhere in the circuit. (except in the power supply, of course!)
The distortion is very low, between .001% and .005% at 1 watt."
Dual mono-block design, with heat pipe based heat-sinks.
Sounds excellent. When paired with proper speakers, there are no speakers, just music.
Powering Ts in a 3 way configuration.
LM3886 dual mono
Well known LM3886 in non-inverting configuration.
Two mono-blocks in shared chassis.
Standard passive cooling.
Powering Ws in a 3 way configuration.
I am considering upgrading the amplifier to F5 Turbo Dual Monoblocks.
Two mono-blocks in shared chassis.
Standard passive cooling.
Powering Ws in a 3 way configuration.
I am considering upgrading the amplifier to F5 Turbo Dual Monoblocks.
Autotuba - Folded Horn
Can a 8" long throw woofer outperform a 12" sealed sub? Yes it can, in a horn. High efficiency combined with low THD.
MUCH MORE complex to build than a sealed or ported box, but WORTH the extra effort.
Design by Bill Fitz Maurice, plans available for purchase at his site.
One for my wife, one for me.
MUCH MORE complex to build than a sealed or ported box, but WORTH the extra effort.
Design by Bill Fitz Maurice, plans available for purchase at his site.
One for my wife, one for me.
15" Dayton Sub-woofer
Project for my brother-in-law.
15" 4 ohm sub with 89 dB sensitivity powered by 240W plate amp. Sealed box.
He likes it, his wife does not.
DSC-380-4, SA-240.
15" 4 ohm sub with 89 dB sensitivity powered by 240W plate amp. Sealed box.
He likes it, his wife does not.
DSC-380-4, SA-240.
FUTURE PROJECTS:
Tube Amp
I always wanted a tube amp...
So, my birthday is in October... ;) But seriously, it's on my bucket list.
If you want one too, you can get a kit online. Just watch out for the high voltage.
So, my birthday is in October... ;) But seriously, it's on my bucket list.
If you want one too, you can get a kit online. Just watch out for the high voltage.
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WHY Do It Yourself?
it's a lot of fun
learn new skills
get a better return on investment (assumes your time costs 0$)
sometimes, you got the addition in the DNA (that's my maternal grandfather on the pic)
learn new skills
get a better return on investment (assumes your time costs 0$)
sometimes, you got the addition in the DNA (that's my maternal grandfather on the pic)
