Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Registered members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Audio and Video Talk
General Discussion
Tube, Class A, Class AB Amps
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support AVForums:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Norval" data-source="post: 7416" data-attributes="member: 62"><p>Class-d actually a whole different concept, hence my comment the other day about Abe's hi frequency switches.</p><p></p><p>- Class-a is where the transistors are bias in such a way that the transistors never switch off, hence no x-over distortion that you get in a class AB. Also the most inefficient design, and very difficult to get a high power out of it.</p><p></p><p>Generally class-A designs got a better damping, maybe thats the reason why they actually do sound bigger than what they are.</p><p></p><p>I've heard the Sugden 15 W class-A in a large room and it does in fact sound much more powerfull than its 15W rating.</p><p></p><p>A friend replaced his 240W RMS Sherwood with a 50W class-A Plinius and that also had more control over the speakers than the 240W class-B</p><p></p><p>To get back to the actual question, same tubes on class-b can produce more power only because of their biasing. Easiest understood if you study transistor theory, I'm not actually too good in explaining this sh!t. ;D ;D ;D</p></blockquote><p></p>
[QUOTE="Norval, post: 7416, member: 62"] Class-d actually a whole different concept, hence my comment the other day about Abe's hi frequency switches. - Class-a is where the transistors are bias in such a way that the transistors never switch off, hence no x-over distortion that you get in a class AB. Also the most inefficient design, and very difficult to get a high power out of it. Generally class-A designs got a better damping, maybe thats the reason why they actually do sound bigger than what they are. I've heard the Sugden 15 W class-A in a large room and it does in fact sound much more powerfull than its 15W rating. A friend replaced his 240W RMS Sherwood with a 50W class-A Plinius and that also had more control over the speakers than the 240W class-B To get back to the actual question, same tubes on class-b can produce more power only because of their biasing. Easiest understood if you study transistor theory, I'm not actually too good in explaining this sh!t. ;D ;D ;D [/QUOTE]
Insert quotes…
Verification
Post reply
Audio and Video Talk
General Discussion
Tube, Class A, Class AB Amps
Top