Zen -> Cen -> Sen, evolution of a minimalistic IV Converter - Page 128 - diyAudio
 Zen -> Cen -> Sen, evolution of a minimalistic IV Converter
 User Name Stay logged in? Password
 Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read Search

 Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

 Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
 28th November 2012, 08:39 PM #1271 diyAudio Member   Join Date: Aug 2008 Location: Correggio, Italia With the Ohm's law (V=IR) , Vp-p will be 0.016x680=10.88V, Vp=5.44V and Vrms will be 5.44x0.707=3.84V. I'm right?
 29th November 2012, 10:38 AM #1272 diyAudio Member   Join Date: Oct 2003 My understanding is that full range current should be 4mA. But those people who own 9018's or 9012's can tell you better. Patrick __________________ xen-audio.com
 29th November 2012, 05:29 PM #1273 diyAudio Member   Join Date: Aug 2008 Location: Correggio, Italia The BII service manual says " 16mA peak to peak at each output". 16mA peak to peak are 8mA peak, and 8x0.707=5.6mArms. 5.6mA = 0.0056 A, for the Ohm 's Law, 0.0056A x 680R = 3.8 VRMS. I never seen 4mA.
diyAudio Member

Join Date: Aug 2007
Quote:
 Originally Posted by orelli The BII service manual says " 16mA peak to peak at each output". 16mA peak to peak are 8mA peak, and 8x0.707=5.6mArms. 5.6mA = 0.0056 A, for the Ohm 's Law, 0.0056A x 680R = 3.8 VRMS. I never seen 4mA.
Both are correct. 4mApkpk/Dac output, and there are 4 parallel dacs in stereo mod.

diyAudio Member

Join Date: Oct 2003
Someone at some fishy forum was looking for a Spice model of the SEN IV.
Of course we have; this one for SEN V18 together with a simulated ES9018 output.

This is meant for you to play around with.
The FFT is not accurate, so don't quote THD figures from this.
For that we have other methods / models.

Patrick
Attached Files
 ES9018_SEN_V18.asc (2.7 KB, 106 views)
__________________
xen-audio.com

 5th January 2013, 04:10 PM #1276 diyAudio Member   Join Date: Mar 2011 Many fishy thanks Patrick, pleased your still looking after me. Pleased it works with LTSpice as its the only one I can use although only in a novice manor but it will help with my diy enjoyment and maybe teach me something also. Loving SEN by the way and surprised more or not using it with there Buffalos. Taking your advice and moving to differential inputs on power amps in the near future.
 5th January 2013, 06:54 PM #1277 diyAudio Member   Join Date: Oct 2003 That's a pity........ I have a much improved version of the XCEN on my lab table waiting to be finished. Should solve all the thermal drift problems and lower noise floor further. But seems not required anymore. Say Happy New Year for me to the fishy gang, Patrick __________________ xen-audio.com
 7th January 2013, 12:17 PM #1278 diyAudio Member   Join Date: Mar 2011 Good news about XCEN Patrick but bad news for me as it means choices. I am better with no choices :-)
 7th January 2013, 12:49 PM #1279 diyAudio Member   Join Date: Oct 2003 You can always (choose to) have both. Patrick __________________ xen-audio.com
 26th January 2013, 05:29 AM #1280 diyAudio Member   Join Date: Oct 2003 There were some discussions elsewhere about using the SEN circuit for very high current output DACs. Examples include using multiple ES9018s in parallel. For such application, it is perhaps worth considering that the circuit bias be at leat 4~8 times that of the total DAC output. You can always using many many 2SK369Vs in parallel, e.g. 8x to get to 200mA bias. But if you are looking at such bias current, you might also consider the LU1014 triode cell as used in the DAO. The DAO SE all-FET Class-A ZGF Headphone Amplifier I have not tried this myself, so just an idea. Patrick __________________ xen-audio.com

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is OffTrackbacks are Off Pingbacks are Off Refbacks are Off Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post prooptiki Swap Meet 1 22nd May 2010 05:57 PM novec Digital Line Level 11 11th May 2010 11:57 AM rick57 Everything Else 0 4th May 2007 04:03 PM Lubomir Swap Meet 0 1st February 2007 03:36 PM

 New To Site? Need Help?

All times are GMT. The time now is 09:41 AM.