mwhouston

To Xover at 8500 I think the cap should be 2.5uf. Not sure how you get 1.5uf? How do you get 1.5uf.

Did you get the 16ohm version? I got 8.

What was your Xover frequency for the T90?

Still under test. Xing just over 9K but should I make it higher or lower? My horns go to 20K regardless. Had these nice polies from Denmark at 2.2uf and thought a good place to use them.

I love my horn(s).

Withdrawn.

Bought a couple of these expensive Fostex T90A super tweeters with Alnico magnets. About the same efficiency as my horns (109db) p. Running off the horns Xover and pads. Using a Jatzen 2.2uf poly cap to bring them in at about 9K. Sounds excelent so far. Just in test setup mode at the mo.

I stayed clear of veneerng, not my strength. That's why I developed the much talked about "Houston Finish" with a roller. Put me on the end of a roller with good quality paint and I'm a happy man. I did find, though, the critical part of the process is the undercoat. As with veneerng - preparation is the key.

Nice.

Looks pretty darn good.

Certainly look the part. Do you wind your own chokes?

https://www.pinterest.com.au/obscurabook/pinhole-cameras/

Excellent work as usual. Real interested in your pin hole. Would you put up an image of it. Also any help to make one. Drawings of construction. Did use photo paper of film stock.

Had some problems getting this amp dead quiet but finally got there. Sounds warm and balanced with solid bass. Sounds effortless. 180Wpc Class D with hifimediy T4 Tripath V1.3 Class D. This one is setup for 4ohm speakers. Lower PS voltage but higher current. 13A max out of the tranni. There is an onboard 10,000uf cap. To this I add some external smoothing caps and some bypass caps to reduce bridge noise and electro cap noise. My usual 24 step step attenuator and 4oz gold plated knob. Yep it adds $100 to parts cost but worth it. Used Cat5 solid core to bring the four RCA connections to the selection switches. I just love the sound of solid core, lol. I try not to use shielded cable anywhere. From TT to phono preamp is about the only place. Four inputs with all switches upfront, power filter in an IEC mains socket and fused and earth enclosure. I know I have posted some of this info. previously so forgive me but proud of this build for another.