Tripath or Hypex Guitar amp designs?

dalcorn · 28th March 2006, 03:59 AM

Are there any guitar amp designs based around the amps that are compared to SETs, etc.

I thought any tone desires could be handled in the preamp and more carefully controlled if the power amp is less quirky.

I have not done much in terms of instrument DIY, if anyone knows of what criteria are used in selecting cabinet drivers.

Pano · 28th March 2006, 04:08 AM

Don't know about Hypex, but I think there are some Tripath guitar amps.
Check this site: Tripath Power .
You should be able to find them thru there.

And remember, Google is your friend.

dalcorn · 28th March 2006, 05:29 PM

I was more interested in how to get the right tone, and if it was possible with any Class D modules.

I know the typical solution would be to use a tube preamp and Class D power amp, but I was wanting to do it all without using transistors or tubes.

Pano · 28th March 2006, 08:58 PM

Quote:

Originally posted by dalcorn
I was wanting to do it all without using transistors or tubes.

That's going to be a challenge!

raintalk · 28th March 2006, 09:40 PM

How about just a black box approach. I know there's a lot of discussion about the difference in class-d verses tripath, .... amps, but sound wise they're more alike than they are different. Overall very transparent, efficient, and reliable. Good "tone" in would be good amplified tone out.

Now "transparent" and "guitar amp" usually don't go together. Electric Guitars usually need a lot of signal enhancing to sound good. So just add signal enhancing ahead of the class-d to get the good tone you want.

dalcorn · 29th March 2006, 02:54 PM

how would i enhance the signal as you say?

would it be possible to do a PWM preamp that produced the desired tone?

leadbelly · 29th March 2006, 04:29 PM

Quote:

Originally posted by dalcorn
but I was wanting to do it all without using transistors or tubes.

Quote:

Originally posted by dalcorn
would it be possible to do a PWM preamp that produced the desired tone?

Are you confused, or just confusing me?

As has been suggested, consider putting a published guitar preamp design in front of your Class D power amp. There are so many out there you can just pick whatever suits your fancy, here is a commonly suggested one:

raintalk · 29th March 2006, 04:42 PM

That preamp looks like it would sure do the job! From clean to crunch.

If you're high tech enough, maybe you could use a PC, or Muse Receptor, along with VST plugins to try out different signal processing, cabinet modeling, effects, .... and find what you like, then build hardware to duplicate it.

I ran across this
http://www.behringer.com/IAXE393/index.cfm?lang=ENG
Looks fun.

Mendelt · 31st March 2006, 11:02 AM

There's at least one company I know of that makes Bass-guitar amps based on the Hypex modules.

www.hevos.nl

They do exactly what you propose. They shape the tone with a tube preamp and use a hypex poweramp.

dalcorn · 4th April 2006, 03:01 AM

i'd like to avoid the cost of such a premade amplifier

i'd like to build one of the many tube preamp designs for a guitar or bass amp, but think the cost of parts and high voltages are quite a consideration. i suppose many will tell me if i hear the difference between the two i would be willing to pay the cost difference in a heartbeat?

28th March 2006, 03:59 AM	#1
dalcorn diyAudio Member Join Date: Jul 2005 Location: Clemson, SC	Tripath or Hypex Guitar amp designs? Are there any guitar amp designs based around the amps that are compared to SETs, etc. I thought any tone desires could be handled in the preamp and more carefully controlled if the power amp is less quirky. I have not done much in terms of instrument DIY, if anyone knows of what criteria are used in selecting cabinet drivers.

28th March 2006, 04:08 AM	#2
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	Don't know about Hypex, but I think there are some Tripath guitar amps. Check this site: Tripath Power . You should be able to find them thru there. And remember, Google is your friend. __________________ Take the Speaker Voltage Test!

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28th March 2006, 05:29 PM	#3
dalcorn diyAudio Member Join Date: Jul 2005 Location: Clemson, SC	I was more interested in how to get the right tone, and if it was possible with any Class D modules. I know the typical solution would be to use a tube preamp and Class D power amp, but I was wanting to do it all without using transistors or tubes.

28th March 2006, 09:40 PM	#5
raintalk diyAudio Member Join Date: Jul 2004 Location: Seattle USA	How about just a black box approach. I know there's a lot of discussion about the difference in class-d verses tripath, .... amps, but sound wise they're more alike than they are different. Overall very transparent, efficient, and reliable. Good "tone" in would be good amplified tone out. Now "transparent" and "guitar amp" usually don't go together. Electric Guitars usually need a lot of signal enhancing to sound good. So just add signal enhancing ahead of the class-d to get the good tone you want.

29th March 2006, 02:54 PM	#6
dalcorn diyAudio Member Join Date: Jul 2005 Location: Clemson, SC	how would i enhance the signal as you say? would it be possible to do a PWM preamp that produced the desired tone?

29th March 2006, 04:42 PM	#8
raintalk diyAudio Member Join Date: Jul 2004 Location: Seattle USA	That preamp looks like it would sure do the job! From clean to crunch. If you're high tech enough, maybe you could use a PC, or Muse Receptor, along with VST plugins to try out different signal processing, cabinet modeling, effects, .... and find what you like, then build hardware to duplicate it. I ran across this http://www.behringer.com/IAXE393/index.cfm?lang=ENG Looks fun.

31st March 2006, 11:02 AM	#9
Mendelt diyAudio Member Join Date: Mar 2005 Location: the Netherlands	There's at least one company I know of that makes Bass-guitar amps based on the Hypex modules. www.hevos.nl They do exactly what you propose. They shape the tone with a tube preamp and use a hypex poweramp.

4th April 2006, 03:01 AM	#10
dalcorn diyAudio Member Join Date: Jul 2005 Location: Clemson, SC	i'd like to avoid the cost of such a premade amplifier i'd like to build one of the many tube preamp designs for a guitar or bass amp, but think the cost of parts and high voltages are quite a consideration. i suppose many will tell me if i hear the difference between the two i would be willing to pay the cost difference in a heartbeat?

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