Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

input sensitivity [SoZ]
input sensitivity [SoZ]
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
Thread Tools Search this Thread
Old 21st January 2002, 02:24 AM   #1
Phage is offline Phage
diyAudio Member
Join Date: Jan 2002
Default input sensitivity [SoZ]

How would I figure the input sensitivity of my son of zen amplifier? My rails are +-30v and R10 and R11 are whatever you want them to be [haven't decided/amp isn't built yet.] I will be operating the amplifier single ended until I build a BoSoZ [might be a while.] Also, can this figure be changed by different values of R10 and R11?

Thanks for your help!
  Reply With Quote
Old 21st January 2002, 03:56 AM   #2
GRollins is offline GRollins  United States
diyAudio Member
Join Date: Feb 2001
Location: Columbia, SC
R10 & R11 don't set the input sensitivity, they set the input impedance. If you want to cut the input sensitivity down, you can arrange a voltage divider by putting a resistor in series with the input (this is not the 221 ohm resistor to the gate; this would be a separate resistor on the other side of R10/11). The ratio of this resistor with R10/11 would set the sensitivity at a lower level.
The SOZ will operate as a single-ended amplifier, but with less gain and higher distortion (less power, also). The output of the backside of the differential won't completely match the front side. If you want high performance out of the circuit in single-ended mode, you'll need to think in terms of current sources underneath the output devices.

  Reply With Quote
Old 21st January 2002, 04:07 AM   #3
Phage is offline Phage
diyAudio Member
Join Date: Jan 2002
yes, but what is the input sensitivity of the circuit [in volts or dB take your pick]? I am aware of the downfalls of single ended operation :-( but I believe it is better to have an amp than no amp while I plan out the preamp. Also, how hard would it be to design tone controls/has it been done? I can hear the audiophiles shreaking on that one... I do not have a sub in my design currently [we'll see if I need one] and I'd like to boost the lower frequencies to compensate for lowered ear sensitivity + my own tastes. I believe I will come up with a software solution to this problem [additionally it will feature sound cancellation for background noises like people talking and it should sense and compensate for amplifier/speaker distortions of the waveform.] If my ideas work well in software I'll try to make a hardware solution
  Reply With Quote


input sensitivity [SoZ]Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
input sensitivity? adrianc Solid State 17 1st April 2008 06:40 AM
BJT input dv/dt sensitivity zilog Class D 0 18th January 2006 07:31 AM
Son Of Zen Input Sensitivity rutcho Pass Labs 3 30th November 2003 03:46 PM
BOZ input sensitivity gema Pass Labs 0 29th July 2002 10:55 AM
Input Sensitivity StefanJ83 Everything Else 1 20th November 2001 10:17 PM

New To Site? Need Help?

All times are GMT. The time now is 02:21 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio