Go Back   Home > Forums > Blogs > googlyone

Rate this Entry

Retro Amp - final product

Posted 26th August 2014 at 01:18 PM by googlyone

I finally got the retro am finished. At least to the point of all the parts set to work, the case built and assembled and wired up.

The photos really don't show just how orange it is, nor does he slant in the case "pop out" as much as it does in real life.

Click image for larger version

Name:	opr6-IMG_1842.jpg
Views:	302
Size:	126.2 KB
ID:	1376

Yes, I did the "writing" on the front panel by hand with a paintbrush.... I came close to getting the thing CNC milled, but concluded that the hand painted approach would be (a) fun, (b) a new challenge, and (c) more in line with a retro amp

Click image for larger version

Name:	opr3-IMG_1838.jpg
Views:	271
Size:	136.2 KB
ID:	1375

Click image for larger version

Name:	opr7-IMG_1843.jpg
Views:	368
Size:	182.1 KB
ID:	1377

Click image for larger version

Name:	opr8-IMG_1844.jpg
Views:	233
Size:	193.3 KB
ID:	1378

Click image for larger version

Name:	opr10-IMG_1846.jpg
Views:	215
Size:	170.1 KB
ID:	1379

Click image for larger version

Name:	opr11-IMG_1847.jpg
Views:	224
Size:	180.9 KB
ID:	1380

Click image for larger version

Name:	opr15-IMG_1852.jpg
Views:	201
Size:	143.1 KB
ID:	1381

Click image for larger version

Name:	opr16-IMG_1853.jpg
Views:	261
Size:	155.4 KB
ID:	1382

Click image for larger version

Name:	opr18-IMG_1856.jpg
Views:	222
Size:	197.8 KB
ID:	1383

The amplifier has:
- A digitiser on its input.

- DSP implementing crossover and volume control

- Four channels of amplifier, the sub is running in bridged mode, and the highs as single channels. I needed to do this as the sub is old, and 16 Ohms (!). But it works a treat.

Well, now all I need to do is final checks on the wiring, and run the thing up.

The crossover and DSP is set up, then locked away inside the case, hiding all this nasty "modern-ness".

I look forward to hearing this thing running with the speakers out in the shed!
Posted in Uncategorized
Views 1103 Comments 0
Total Comments 0

Comments

 

New To Site? Need Help?
Copyright ©1999-2017 diyAudio