Which class D amp sounds closest to a SET amp while driving full rangers?

oon_the_kid · 8th October 2011, 04:03 PM

Hi,

I just started getting interested in high efficiency full range speakers. I have a few tripath amps. After testing out with my valve amp, I think I still like my valve amp more. The tripath amps that I find closest sounding to my valve amp is based on same chipset as original sonic impact. I have tried the virtue one, but I find the voice too thin. I reckon it has to do with damping factor more than anything else. So I am wondering if anybody out there has gone through a whole bunch of amps compared against a good SET on a pair of lowthers or the like and see which one sounds the most similar...

Thanking all in advance...
Oon

Trebla · 8th October 2011, 06:20 PM

You could kick off a whole thread discussing what constitutes "a good SET".

The TA2024 and TA2020 sound similar to my EL84 PP amp. But also different.
Not sure either would compare to my previous SET, or any SET for that matter.

Saturnus · 8th October 2011, 08:24 PM

You can always plug in a 0.5 - 1 ohm power resistor on the speaker outputs so the Tripath amps have very low dampening factor (and your speaker gets it's Qtc boosted) just like on your SET.

StigErik · 8th October 2011, 08:41 PM

Yeah, but that will not make it sound like a 300B SET amp...

I have owned one - it didnt sound like anything else, and not at all like class D.

oon_the_kid · 9th October 2011, 10:43 AM

I have 2 tripath in my arsenal. I have to agree on your choice of chips. The 2024 sounds more valve like than the 2050. Wonder how it might sound with an additional 1 ohm resistor.

Oon

julcat · 11th October 2011, 04:50 PM

Hello, could you please explain how to connect the resistor and what are the specs of the resistor????

Saturnus · 11th October 2011, 05:02 PM

Quote:

Originally Posted by julcat

Hello, could you please explain how to connect the resistor and what are the specs of the resistor????

You just series connect it on the plus or minus terminal somewhere between the amp and the speaker. Only important spec is the power handling capacity of the resistor which should be:

Rp = P * (R / Z)

Where

Rp is power handling specification of the series resistor in watts
P is the Wrms output of the amp
R is resistance value
Z is nominal impedance of the speaker.

albin · 05:13 PM

I've not compared them,but the fact that the low power tripaths switch at 900khz affects my perception.
Regards Max

Saturnus · 05:24 PM

Quote:

Originally Posted by albin

I've not compared them,but the fact that the low power tripaths switch at 900khz affects my perception.
Regards Max

Whatever makes you think that? The specification sheet states it's a wide band spread spectrum typically between 100kHz and 1MHz.

albin · 05:35 PM

Saturnus,
ripple on an oscope.
regards Max

8th October 2011, 04:03 PM	#1
oon_the_kid diyAudio Member Join Date: May 2008	Which class D amp sounds closest to a SET amp while driving full rangers? Hi, I just started getting interested in high efficiency full range speakers. I have a few tripath amps. After testing out with my valve amp, I think I still like my valve amp more. The tripath amps that I find closest sounding to my valve amp is based on same chipset as original sonic impact. I have tried the virtue one, but I find the voice too thin. I reckon it has to do with damping factor more than anything else. So I am wondering if anybody out there has gone through a whole bunch of amps compared against a good SET on a pair of lowthers or the like and see which one sounds the most similar... Thanking all in advance... Oon

8th October 2011, 08:41 PM	#4
StigErik diyAudio Member Join Date: Feb 2008	Yeah, but that will not make it sound like a 300B SET amp... I have owned one - it didnt sound like anything else, and not at all like class D. __________________ dipoles dipoles dipoles dipoles dipoles dipoles dipoles dipoles and dipoles

11th October 2011, 05:09 PM	#8
albin diyAudio Member Join Date: Aug 2008	oon I've not compared them,but the fact that the low power tripaths switch at 900khz affects my perception. Regards Max Last edited by albin; 11th October 2011 at 05:13 PM.

11th October 2011, 05:30 PM	#10
albin diyAudio Member Join Date: Aug 2008	900Khz Saturnus, ripple on an oscope. regards Max Last edited by albin; 11th October 2011 at 05:35 PM. Reason: I might be wrong,but I didn't notice spread spectrum

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search


	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

8th October 2011, 06:20 PM	#2
Trebla diyAudio Member Join Date: Nov 2005 Location: North West	You could kick off a whole thread discussing what constitutes "a good SET". The TA2024 and TA2020 sound similar to my EL84 PP amp. But also different. Not sure either would compare to my previous SET, or any SET for that matter.

8th October 2011, 08:24 PM	#3
Saturnus diyAudio Member Join Date: Jun 2005 Location: Copenhagen, Denmark	You can always plug in a 0.5 - 1 ohm power resistor on the speaker outputs so the Tripath amps have very low dampening factor (and your speaker gets it's Qtc boosted) just like on your SET.

9th October 2011, 10:43 AM	#5
oon_the_kid diyAudio Member Join Date: May 2008	I have 2 tripath in my arsenal. I have to agree on your choice of chips. The 2024 sounds more valve like than the 2050. Wonder how it might sound with an additional 1 ohm resistor. Oon

11th October 2011, 04:50 PM	#6
julcat diyAudio Member Join Date: Sep 2009	Hello, could you please explain how to connect the resistor and what are the specs of the resistor????

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Collection of Class B topologies <100mA Idle and Sound closest by Class A	tiefbassuebertr	Solid State	36	30th December 2011 06:34 PM
FS: Coral Flat-10 II & National EAS-20 PW09 full rangers	tuyen	Swap Meet	0	2nd October 2009 07:23 AM
Class-T amp driving low impedance?	Nuuk	Class D	9	19th September 2008 03:22 AM
SET amp from 1619 driving a 809. Opinion wanted.	rcavictim	Tubes / Valves	34	23rd June 2008 01:49 PM
first set of full rangers done	rtenyes	Full Range	6	23rd July 2007 11:22 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read