Tripath and heavy loads/big speakers? - diyAudio
Go Back   Home > Forums > Amplifiers > Class D

Class D Switching Power Amplifiers and Power D/A conversion

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 24th April 2010, 08:06 PM   #1
diyAudio Member
 
Join Date: Apr 2010
Question Tripath and heavy loads/big speakers?

Hi there

I'm quite green in this area when it comes to digital amplification as my experience is only limited to Lyngdorf's so I would appreciate if you could help me out a little bit.

The story:

My fathers Denon stereo (POA 2800 & PRA 1500) have now, after 15 years of true service, finally shown their age and he's now seeking a new amplifier to make his JBL Studio Monitor 4410's again. His living room is 60m^2 but he rarely listens to music at high volumes so he doesn't want an expensive and beefy amplifier. He has looked at new and 2nd hand gear, e.g. from Rotel, Unison, NAD but I suggested him to look at digital amplification as you get great performance for little money.

His speakers, the aforementioned JBL Studio Monitors 4410, are relatively easy to drive; sensitivity 90 dB SPL (1W, 2.83V @ 1m), 8 ohms nominal impedance. However, I'm afraid that the 10" LF would be difficult to control with a low powered Tripath amplifier. What do you guys reckon?

Do you have any experience with driving "big" speakers with Tripath amps? Am I being too optimistic with my choice of amplification for the 4410's?

Thanks in advance

Best regards
  Reply With Quote
Old 24th April 2010, 11:00 PM   #2
gooki is offline gooki  New Zealand
diyAudio Member
 
Join Date: Dec 2008
Quote:
Originally Posted by Geopoliticus View Post
I'm quite green in this area when it comes to digital amplification as my experience is only limited to Lyngdorf's so I would appreciate if you could help me out a little bit.

His speakers, the aforementioned JBL Studio Monitors 4410, are relatively easy to drive; sensitivity 90 dB SPL (1W, 2.83V @ 1m), 8 ohms nominal impedance. However, I'm afraid that the 10" LF would be difficult to control with a low powered Tripath amplifier. What do you guys reckon?
ClassD is not digital amplification.

I see no problems using a good low powered ClassD amp on those speakers.
  Reply With Quote
Old 24th April 2010, 11:26 PM   #3
diyAudio Member
 
Join Date: Jun 2007
I have a Hlly T-amp 90,which I think is an excellent amp.It has no problem driving my electrostatics,which dip to 2 ohms or so at one point,so I think it'll drive those speakers no problem.
  Reply With Quote
Old 24th April 2010, 11:41 PM   #4
diyAudio Member
 
theAnonymous1's Avatar
 
Join Date: Feb 2004
Location: Anonymityville
Quote:
Originally Posted by Ali Tait View Post
I have a Hlly T-amp 90,which I think is an excellent amp.It has no problem driving my electrostatics,which dip to 2 ohms or so at one point,so I think it'll drive those speakers no problem.
I don't think he's talking about the ability to drive low impedances. Sound likes he's talking about damping factor (whether he knows it or not).

Electrostatics are a relatively "light" load in this regard.
  Reply With Quote
Old 24th April 2010, 11:57 PM   #5
diyAudio Member
 
Join Date: Jun 2007
Yes I'm aware of that.It does show that the amp has the ability to drive more difficult loads though,so should have an easy time with the JBL's I think.
  Reply With Quote
Old 25th April 2010, 08:06 PM   #6
diyAudio Member
 
aquapiranha's Avatar
 
Join Date: Jul 2007
I have used a couple of different Tripath amps and I am currently using the Sure 4 X 100W board to drive my OB's. these are a benign load really, but they are a total of 4 X 15" bass drivers and 2 X 8" mid / treble FR's. The Tripath has NO trouble at all here and I am sure if I had the bottle to do it I could blow the windows out with this set up. I have yet to feel a tripath lacking using several different speakers.

(Hi Ali)

  Reply With Quote
Old 15th May 2010, 11:59 AM   #7
diyAudio Member
 
Join Date: Apr 2010
Update:

I borrowed a Virtue Audio One (MKI) from a dealer where I reside. I'm thoroughly impressed how this little amp can control the JBL 4410 studio monitors. At higher listening levels I experience some uncontrollable bass but my living room is also a freakish 60m^2. I'm using it with the 30v/90w PSU (standard PSU with this model is 24v/65W).

I'm going to try a Virtue TWO.2 also, just to see if I can squeeze more out if this design.

At $449 (Two.2 retail price), I can't see anything come near it. But I'm not that familiar with Class-D amps (yet) so are there any other amplifiers I should look into?

Cheers
  Reply With Quote
Old 15th May 2010, 12:43 PM   #8
diyAudio Member
 
Join Date: Sep 2008
Location: Brisbane
I have just finished a modified ta2024 project for my son and tried it with my home made seas speaker which are a 8ohm 2nd order 3 way with 10" woofer and was quite supprised at how well the 15$ amp could drive them to a decent volume. It is true that I could hear the bass a little less controlled than my usually more substantial amp but if your only driving them to moderate levels it shouldn't be a problem. It can drive the mid and tweet to high levels with no issue though.
  Reply With Quote
Old 15th May 2010, 10:59 PM   #9
diyAudio Member
 
Join Date: Apr 2008
Quote:
Originally Posted by Geopoliticus View Post
Update:
I'm going to try a Virtue TWO.2 also, just to see if I can squeeze more out if this design.
the TWO is great - and even better with better power supplies. You will not regret the extra investment. Look for example for their partner products line:
Virtue Audio. We make audio lovers audiophiles. Better sound by design.
  Reply With Quote
Old 16th May 2010, 02:46 PM   #10
diyAudio Member
 
Join Date: Apr 2010
Quote:
Originally Posted by TheDealer View Post
the TWO is great - and even better with better power supplies. You will not regret the extra investment. Look for example for their partner products line:
Virtue Audio. We make audio lovers audiophiles. Better sound by design.
Do you think it's worth to go for the TWO.2 instead of the ONE.2? As far as I can see, they're able to deliver the same amount of output/power to your speakers, depending on the PSU.

I'm not sure if I can hear any difference if I pick the TWO. The TWO costs nearly $100 more but I think the big difference is in the power supply.

What do you reckon?
  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
Big Tripath power fun on ebay amt Class D 213 24th April 2009 01:07 AM
Does a really big PS in an Aleph 30 help drive low impendence loads? audionut Pass Labs 5 15th February 2006 11:38 PM
Looking for good ,big,heavy 12 "Sub DriveR ZuMbAiU Subwoofers 27 18th January 2006 03:24 AM
Big, Heavy, Tube regulated Lambda Power supply E.Maxwell Tubes / Valves 8 31st October 2004 01:10 AM


New To Site? Need Help?

All times are GMT. The time now is 01:57 PM.


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