Fake or bad caps....
I bought 8 pieces ELNA FOR AUDIO 10000uf 63v from AUDIOPHONICS to use them in my FO and the measurements showed about 8400 uf.After sales services told me that tolerance is 20% so these caps are OK.But i have never seen in my life before branded product such as ELNA for audio to have such low measurements.They usually have at least 5-10 percent more.I have 7pcs 10 yo ELNA caps and they have 11000uf or more. I am very disappointed and of course I will not use them.Of course they refused my review that's why I'm publishing it here.
I bought 8 pieces ELNA FOR AUDIO 10000uf 63v from AUDIOPHONICS to use them in my FO and the measurements showed about 8400 uf.After sales services told me that tolerance is 20% so these caps are OK.But i have never seen in my life before branded product such as ELNA for audio to have such low measurements.They usually have at least 5-10 percent more.I have 7pcs 10 yo ELNA caps and they have 11000uf or more. I am very disappointed and of course I will not use them.Of course they refused my review that's why I'm publishing it here.
New FO modules to be launched in 2018
FO modules v1.6 in final phase of preparation, schematic locked, measurements done. PCB layout on my LCD screen so it looks we could still manage them to be dated with 2018 mark.
FO module v1.6 is unconditionally stable and has been thoroughly sound tested at each step of development with two slightly different amplifiers, one having previous - another current variant, so always better sample proceeded to the next level. Time consuming process gave amazing result, we think. Stay tuned.
Pic showing 500 kHz square wave signal at 20 Vpp on 8 Ohm load.
FO modules v1.6 in final phase of preparation, schematic locked, measurements done. PCB layout on my LCD screen so it looks we could still manage them to be dated with 2018 mark.
FO module v1.6 is unconditionally stable and has been thoroughly sound tested at each step of development with two slightly different amplifiers, one having previous - another current variant, so always better sample proceeded to the next level. Time consuming process gave amazing result, we think. Stay tuned.
Pic showing 500 kHz square wave signal at 20 Vpp on 8 Ohm load.
Attachments
All measurements and listening sessions done with large modules. No worries, medium will share same topology only one pair of output mosfets. Experienced tons of amps in our system, all kind of brands and profiles, without any doubt or exaggeration I can say FO will be fearless giant killer.
Interested... still have to built my L project but wouldn't mind sizing down... .
Any ideas on price setting for the new modules?
And, LC, somewhere you mentioned you where considering encapsulating the modules in resin... . will you stick to that plan?
And while we're at it... I'd be interested in your experiences with the metrum Pavanne compared to the other dacs your using... .
Cheers,
Rob
Any ideas on price setting for the new modules?
And, LC, somewhere you mentioned you where considering encapsulating the modules in resin... . will you stick to that plan?
And while we're at it... I'd be interested in your experiences with the metrum Pavanne compared to the other dacs your using... .
Cheers,
Rob
FO L
Have two slightly modiefied L moduls never mounted. Because to busy and waiting for the new.Picture in the tread. Price 300 Us Dollars. Live in Denmark. I know how to make them stabile.
Have two slightly modiefied L moduls never mounted. Because to busy and waiting for the new.Picture in the tread. Price 300 Us Dollars. Live in Denmark. I know how to make them stabile.
Don't need to, First One L will be produced too.
Same price range as they were, so prices set in the first post of this theme are valid.
Most probably only parts of it, not complete module.
We use Adagio by Metrum, of course slightly modified, in our main system. I like it is true dual mono DAC, L/R channel's GND are isolated. S/N ratio, feed-forward correction and dynamics are state of the art.
Cheers
Adagio was just slightly adapted to our needs, only little tweaks could be performed since the DAC is properly engineered product. Comparing it to the original one we believe that modification is beneficial to our system.
Back to life !
Thanks to HYPERTUNE, my FO 1.4M stereo amplifier is now back to life.
I have to admit that I've had a hard time living without it.
JMK
Thanks to HYPERTUNE, my FO 1.4M stereo amplifier is now back to life.
I have to admit that I've had a hard time living without it.
JMK
LC, how about S modules? I would like to make multichannel amps for my active systems, but M modules are an overkill for my high sensitivity speakers and my listening levels.
Entry level First One module, which is the smallest in the new modules family, has size 80 x 50 mm and could be powered with variety of PSU voltages, meaning power ratings from 50 to 150 W on 8 ohm speakers. Less power is to my opinion reserved for chip amps, therefore no interest of mine. I'm sure you'll be enthusiastic using our smallest module which will find place in many active powered speakers and multi-channel home theater power amps.
v1.6 modules
What is the timeline for the new v1.6 modules availability?
Also, Metrum Adagio is under quite a competition over there. Care to share the differences between Adagio and MSB Select/Reference products you have over there?
What is the timeline for the new v1.6 modules availability?
Also, Metrum Adagio is under quite a competition over there. Care to share the differences between Adagio and MSB Select/Reference products you have over there?
Over the weekend we had official launch accompanied with presentation of our new First One 600 power amplifier based on v1.6 modules. 8 power devices per channel generously gives 600 W on 4 Ohm load, easly 1200 W on 2 Ohm. The sound through Mini One speakers was appealing, detailed, realistic attributes kind, we enjoyed together with lots of visitors.
Attachments
Wow! Looks very cool with the Faraday cage for power supply. Would love to see more pictures of the amp.
Btw, what is the power dissipation of new v1.6 modules with 8 devices? You have some big heatsinks.
Btw, what is the power dissipation of new v1.6 modules with 8 devices? You have some big heatsinks.
Have a problem adjusting The L moduls. 2 x 85 VDC. IT get All to hot with just 100 Mv. T 1 to Tp2 and current from 230 Vac is more Then 1.6 A for One Channel. Advise please.