Nordic said:
Hi Nordic,
Thank You for the kind words!
A bit about my speakers as the Amplifier was designed and built specificly for Them.They are line arrays using six vifa xt woofers and six fountek ribbon tweeters in a sealed box.They are are rated at 96db effiency and use a conjugate circuit to achieve a very flat 8 ohm impedance.f3 is around 70hz and f10 around 40ish.All design credit to Rick Craig of Selah Audio.A speaker designing Genius!
Also a pair of 250wt-12" subwoofers from ACI.
Attachments
![line array towers[1].jpg](/community/data/attachments/81/81601-1735fb945993b69e1d4cd1b43f3557be.jpg)
Point Zero Front
My first DIY Gainclone photo
Specifications
Power Output: 4 ohms 50WRMS, 8 ohms 38WRMS
Bridge Power: 8 ohms 100WRMS
THD+Noise 0.012%
S/N Ratio: <-92dB below 1W, 8Hz-20kHz
Average DC Offset: <1mV (Tempco Compensated)
Frequency Response (-3dB points): 8-50kHz +/-0.1dB
Instantaneous DC Offset: 0.0009V
PCB: 4.2 x 3.0" Double sided, silkscreened
Heatsink: 2.38 x 4.56 x 0.9" Black Anodize 6061 Aluminum
My first DIY Gainclone photo
Specifications
Power Output: 4 ohms 50WRMS, 8 ohms 38WRMS
Bridge Power: 8 ohms 100WRMS
THD+Noise 0.012%
S/N Ratio: <-92dB below 1W, 8Hz-20kHz
Average DC Offset: <1mV (Tempco Compensated)
Frequency Response (-3dB points): 8-50kHz +/-0.1dB
Instantaneous DC Offset: 0.0009V
PCB: 4.2 x 3.0" Double sided, silkscreened
Heatsink: 2.38 x 4.56 x 0.9" Black Anodize 6061 Aluminum
Attachments
First gain clone!
Actually finished this, my very first diy amp, quite some time ago ...
The wooden parts are all oak, made from scratch. The aluminum panels are designed with the front panel designer software from www.schaeffer-ag.de. Schaeffer also manufactured the panels (raw), had them anodized later by a local company here in Gothenburg. The top is a streched aluminum net bought at a local hardware store.
The amp itself is based on the LM3875 kit by Peter Daniel.
Here's an early pic of some of the enclosure parts:
Actually finished this, my very first diy amp, quite some time ago ...
The wooden parts are all oak, made from scratch. The aluminum panels are designed with the front panel designer software from www.schaeffer-ag.de. Schaeffer also manufactured the panels (raw), had them anodized later by a local company here in Gothenburg. The top is a streched aluminum net bought at a local hardware store.
The amp itself is based on the LM3875 kit by Peter Daniel.
Here's an early pic of some of the enclosure parts:
Attachments
gc on heatsinks
hi all..
finally finished my second gc..
amp pcb, speaker terminales, signal and power jacks mounted onto the heatsinks..
heatsinks dimensions are 78 mm x 124 mm.
the most critical parts for me are wooden blocks but not satisfied and will change them..
pcb set from peter daniel. cut from two sides to fit to wood block..
edit: sorry for the big images, i couldn't attached thumbnails..
and thanks to diyaudio community..
hi all..
finally finished my second gc..
amp pcb, speaker terminales, signal and power jacks mounted onto the heatsinks..
heatsinks dimensions are 78 mm x 124 mm.
the most critical parts for me are wooden blocks but not satisfied and will change them..
pcb set from peter daniel. cut from two sides to fit to wood block..
edit: sorry for the big images, i couldn't attached thumbnails..
and thanks to diyaudio community..
