Tube Pre-Amp < $200 - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

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
Reply
 
Thread Tools Search this Thread
Old 25th June 2004, 01:21 AM   #11
diyAudio Member
 
Join Date: Apr 2004
Location: Monroe Township, NJ
I took a look at the STA1. It's a line stage with gain. There are a number of things I don't like about the unit. For starters, it takes 0.2 V. of I/P to produce the full 5 V. peak to peak O/P documented. That's 10% of a CDP's 2.0 V. I/P. You would have a difficult time controlling the listening level. BTW, the 2.0 V. RMS a CDP produces is 5.66 V. peak to peak. Ignoring the STA1's sonic virtues or lack thereof, the unit would mate well with a phono stage that has 35-40 dB. of gain.

At 0.4 V. of I/P for full power O/P, the S5 integrated amp is quite sensitive. Still, that's only 1/2 as "touchy" as the STA1 is. The S5 might have a "hair trigger" volume control with a CDP, while the STA1 is almost certain to have the problem. The S5 will mate well with a phono stage of 40-45 dB. of gain.
__________________
Eli D.
  Reply With Quote
Old 26th June 2004, 08:00 AM   #12
zobsky is offline zobsky  India
diyAudio Member
 
zobsky's Avatar
 
Join Date: Mar 2002
Location: Dallas, Tx, USA
build a 12b4a preamp, ..shouldn't cost you much at all (the power supply tranny (and choke, .. if you use one) will make up the bulk of the cost
__________________
"Any fool can know. The point is to understand" - Albert Einstein
  Reply With Quote
Old 26th June 2004, 08:55 AM   #13
diyAudio Member
 
Join Date: Sep 2003
Have a look at this:

http://www.hagtech.com/clarinet.html

This guy knows his business:-)
__________________
Thanx!
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
need diy tube preamp (line-stage) recommendation and general tube advice Musiclover4 Tubes / Valves 16 18th May 2013 04:19 PM
FS tube tuner, Active filter kit, tube amp, amp3 Josephjcole Swap Meet 9 20th July 2007 05:05 PM
SS or tube voltage amplifying stages in an amp with tube output? ray_moth Tubes / Valves 14 4th July 2007 04:09 AM
tube driving the same tube - whats the collective word? zobsky Tubes / Valves 3 13th June 2005 07:47 AM


New To Site? Need Help?

All times are GMT. The time now is 01:13 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2