trinityamps.com

Trinity Amps Guitar Amp Forum
It is currently Thu Dec 26, 2024 5:59 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 10 posts ] 
Author Message
PostPosted: Thu Jul 12, 2012 4:39 pm 
Offline

Joined: Tue May 29, 2012 5:24 pm
Posts: 1
Location: DFW, Texas
Just wondering if any Triwatt owners have installed a Power Scaling, (VVR circuit) on this amp, and how it went?

Thanks,

Wm.


Top
 Profile  
 
PostPosted: Thu Jul 12, 2012 4:49 pm 
Offline
Expert
Expert
User avatar

Joined: Sun Feb 17, 2008 4:47 pm
Posts: 960
Location: Toronto, Canada.
The Triwatt has a pretty effective MV so there isn't much need for a VRM (VVR).

A VRM (VVR) will also be tricky because the bias voltage will have to be scaled along with the B+.

_________________
http://pdfelectronics.com


Top
 Profile  
 
PostPosted: Sat Jul 14, 2012 4:10 pm 
Offline
Expert
Expert
User avatar

Joined: Sun May 20, 2007 1:45 pm
Posts: 1254
Location: YYZ
+! to kurtlives' comments.

Basically, the VRM/power scaling concept doesn't really work well with Hiwatt type amps. These aren't Marshalls. When developing the Triwatt, which is based very closely on classic Hiwatt designs, it became very clear that there was a specific voltage sweet spot for the right classic Hiwatt tone. If you went much above that, it started to sound shrill. If you went below, it got mushy and lost definition. Just use the built-in MV. If you wanted to add anything to that, you could also install a post-PI MV, which a few folks have tried with regular Hiwatts and appeared to work well.

_________________
Great tones come in small glass jars!


Top
 Profile  
 
PostPosted: Sun May 17, 2020 9:28 pm 
Offline
Experienced
Experienced

Joined: Wed Sep 12, 2018 5:17 pm
Posts: 374
Location: Shawnee, OK
zaphod wrote:
+! to kurtlives' comments.

Basically, the VRM/power scaling concept doesn't really work well with Hiwatt type amps. These aren't Marshalls. When developing the Triwatt, which is based very closely on classic Hiwatt designs, it became very clear that there was a specific voltage sweet spot for the right classic Hiwatt tone. If you went much above that, it started to sound shrill. If you went below, it got mushy and lost definition. Just use the built-in MV. If you wanted to add anything to that, you could also install a post-PI MV, which a few folks have tried with regular Hiwatts and appeared to work well.

Sorry, just thought Zaphod's comment about the a MV after the phase inverter might work. :oops:

_________________
"The only problem with being retired is you never get a day off"


Top
 Profile  
 
PostPosted: Wed Nov 01, 2023 10:09 pm 
Offline

Joined: Wed Nov 01, 2023 10:07 pm
Posts: 1
Power Scaling Kits from KOC / London Power have considered many of the difficulties discussed here. In order to maintain tone at lower volumes, KOC employs a bias tracking circuit that may be adjusted for a "fat" bias.
snake io
The London Power circuit is set up between the caps and the OT center tap, caps and screens, etc., which is what I find appealing about it. Because of this, you may instantaneously disable power scaling for a clean channel or assign varying degrees of power scaling to distinct OD channels. This results in instantaneous voltage changes.


Top
 Profile  
 
PostPosted: Mon Jan 22, 2024 10:07 pm 
Offline

Joined: Mon Jan 22, 2024 10:06 pm
Posts: 6
Reaching out to the manufacturer directly or checking their official forums or support channels might immaculate grid provide insights or recommendations regarding modifications for the Triwatt amp.


Top
 Profile  
 
PostPosted: Sat Jun 22, 2024 3:23 am 
Offline

Joined: Sat Jun 22, 2024 3:01 am
Posts: 1
I haven't personally tried Power Scaling (VVR) on a Triwatt, but it's an intriguing modification. Power Scaling can be a great way to manage volume and achieve better tone at lower levels, especially for home use or smaller gigs. The Triwatt, with its Hiwatt-inspired design, should retain its character well with VVR. If anyone has tried it, I'd love to hear about your experience and any tips you might have! https://snake.io


Top
 Profile  
 
PostPosted: Fri Oct 11, 2024 10:35 pm 
Offline

Joined: Tue Oct 17, 2023 11:13 pm
Posts: 8
Many users found that the VVR circuit allows for better control over their amp's volume, enabling them to achieve retro bowl desirable tones at lower volume levels without sacrificing sound quality.


Top
 Profile  
 
PostPosted: Wed Dec 11, 2024 4:20 am 
Offline

Joined: Sun Jun 25, 2023 10:43 pm
Posts: 5
Most issues seem to arise from using unsuitable components, such as incorrect Football Bros MOSFETs, but when implemented correctly, the technology is robust and reliable.


Top
 Profile  
 
PostPosted: Thu Dec 12, 2024 11:57 pm 
Offline

Joined: Mon Mar 25, 2024 11:27 pm
Posts: 2
Power scaling (commonly referred to as Voltage Variance Reduction or VVR) on a incredibox sprunki Trinity Triwatt amp can be a game-changer for players looking to maintain great tone at lower volumes.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 18 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group