Friday, January 31, 2020

TC9FD MTM

Small bookshelf MTM with open back using Vifa TC9FD and tiny Dayton 3/4" dome tweeter ND20FD.





Sweet sound, highly recommended!

Of note, I use this speaker only from 150Hz and up, with woofer or subwoofer. I never load small fullrange with low frequencies. Distortion of small fullranges in general rises dramatically below 100Hz. This results in upper harmonics which were not present in the recording and only mask the true midrange and hights, muddying the sound.

the evolution of my ht sound

This is my current set up for the tv/3d projector




Audio signal goes to JC-2 preamp/signal selector, then thought the Behringer 31 band digital eq, analog active crossover at 150Hz, upper path is amplified by 10 watts JLH classA amp, lower pass is amplified by AKAI 70 watts chip amp. Bookshelf speakers are 6fe200 mid FaitalPRO, Selenium horn tweeter. Woofers are Pioneer lookalikes.
Still under construction.

I have replaced woofer with 15" Jamo in closed box and experimented with minidsp as active crossover and four 50 watts class d amps. Sounds ok so far.