As any named Babelfish – my iteration of Papa’s gadget .
This one is iteration of Aleph J , v2 means made as adaptive base for making almost entire power range of Aleph amplifiers .
Naturally – JFet input , cascoded to prevent poof from excessive rail voltage , additional Daughter boards for additional output mosfets.
More info here .
Two and half years ago , my fluffy friend Magura asked for sort of favor – wanting me to make two (stereo) Babelfish J2 amps (one of Shameless First Watt Iteration by Mighty ZM ) for his friend , intended for biamping some Gargantuan speakers; after some time , we agreed about parts and everything , and adventure followed …..
They acquired heavy artillery – cases from HiFi2000 , Rifa caps , some heavy NTCs , Semisouth outputs , power On/Off switches , Cardas posts , XLRs , RCAs …. while mains xformers (500VA per stereo case) and pcbs with small parts and few other itsybitsies were mine to complete.
Then entire shebang was smuggled to my (non-EU) country and work begun .
Cases are 5U/400mm deep .
Semi-assembling and first markings for drilling and tapping:
Continuo from here ;
Still without measurements , just playing with data from various web sources , LTSpice and bunch of parts
As previously written here : Big Tannoy MLTL for Woland ;
Box design and calc by Mighty ZM , box production by Woland’s local Wood Meister .
Presentation thread , after first listening impressions is at Baby Diyaudio .
For non Serbian-speaking , just use translate function in Chrome , or go to this , already translated , page : Translation .
So – if you can’t have proper horn ……. or OB doesn’t cut for your room or ears , go for MLTL
😉
K3809 as main driver , K3833(K3836) as bass helper
K3809 are mine , while K3833(K3836) , stars of previous blog entries are prepared for SuperFi’s Westminster project .
Just having fun with some old OB “wood” , gift from Chakija ( he’s not feeling young enough to continue playing with them 😉 )
Disclaimer – I really wasn’t expecting real bass ……. that’s max width I can squeeze in living room , where spks must be situated ; also , MJK OB software didn’t predicted it (bass)
But !! – there is bass , at least in my smallish living room ; sound is remarkable , even with crude and quick xover , without any efforts put in measurements and polishing of same ; OB is far from optimal in almost every area , but it is so fun …..
