5
\$\begingroup\$

Tripath made some clever digital amplifier ICs in "class-T" as they called it. Seemed to have a better performance than class-D at a comparable price. Went bankrupt in 2007, but I think this had more to do with mismanagement than product quality.
I thought I heard a rumor than the technology was bought by Cirrus Logic, but they don't seem to have launched Tripath products yet, so I don't know if the purchase went through.
Does anyone know what the status of Tripath and class-T is?

\$\endgroup\$
6
  • \$\begingroup\$ Does anyone know what the "Class T" modulation scheme is? \$\endgroup\$ – endolith Jul 18 '11 at 16:01
  • 1
    \$\begingroup\$ @endolith "It is an implementation of Class D amplifiers, but is claimed to improve the control scheme to create more efficient and higher quality audio amplification." from wiki en.wikipedia.org/wiki/Class_T_amplifier \$\endgroup\$ – Kellenjb Jul 18 '11 at 16:28
  • 1
    \$\begingroup\$ and "Currently available implementations use a loop similar to a higher order Delta-Sigma (ΔΣ) (or sigma-delta) modulator, with an internal digital clock to control the sampled comparator." \$\endgroup\$ – Kellenjb Jul 18 '11 at 16:29
  • 2
    \$\begingroup\$ Does class-t really deserve its own tag? Doesn't seem like it would ever be used again. \$\endgroup\$ – Kellenjb Jul 18 '11 at 18:29
  • 3
    \$\begingroup\$ @kellenjb - I think the purpose of the tags should be that you can lookup things easier, rather than creating collections of questions for that tag. In that sense I see no harm in having lots of tags with only a few questions attached to them. They're not in the way of nobody. \$\endgroup\$ – stevenvh Jul 19 '11 at 3:08
4
\$\begingroup\$

I can't speak about Tripath directly, but I can about Cirrus Logic. I used to work for Cirrus, and I know the guy who invented their Class-D technology. They certainly did not get their Class-D stuff from Tripath. In my opinion, their Class-D stuff is superior to what Tripath was offering.

After I left Cirrus, Tripath tried to sell me on their technology several times. But I never got the impression that they knew what they were doing, technically. It seemed like they were more of a marketing company than anything else. Either that or their entire business plan revolved around getting bought by a bigger company. But this is just pure guess-work on my part.

\$\endgroup\$
4
  • 1
    \$\begingroup\$ Well, marketing companies can also successful, look at Microsoft; marketeers and lawyers :-) \$\endgroup\$ – stevenvh Jul 18 '11 at 15:20
  • 1
    \$\begingroup\$ The T-amps seemed rather highly regarded by the golden-ear set. I think they were the first switching amplifiers that got any traction with audiophiles. \$\endgroup\$ – markrages Oct 20 '11 at 19:17
  • \$\begingroup\$ @markrages: But is that due to them being better, or having better marketing? \$\endgroup\$ – endolith Oct 20 '11 at 19:38
  • \$\begingroup\$ @endolith I work in both the pro-audio and audiophile industry, and in my opinion it was mostly due to marketing. I've heard many other switching-type amps that sounded better but never went anywhere. \$\endgroup\$ – user3624 Oct 20 '11 at 21:23
0
\$\begingroup\$

I've used a Blaupunkt PA2150 with the Tripath TA3020-ES chipset (150w x 2) and have to say it makes a great tweeter/mid amp. I dunno if I'd use one for a sub amp though, maybe a single 6x9 amp, but not sub. Running 4 tweeters off it along with a 2-way tweeter/mid speaker and it sounded great. They don't overly color the signal, and it sounds a tad more natural. I was even able to to leave my head unit's 1khz and up freq settings nearly flat (0) in the eq settings as it wasn't needed. Class D this amp is not. Definite audiophile on a budget. Think of it more as a Class A with a Class D power supply. I have a handful of vintage late 70's solid state Class A/B amps and the Blaupunkt PA2150 is right up there with it. It's a very dynamic sounding amplifier with a near 3D sound stage. Class D amps are very flat and 2D sounding, where all the music sounds compressed and flat. If that's all you've ever heard, you wouldn't know any better. The Class T stuff however has lots of depth and musicality. I liken Class D to flat, warm beer that's been sitting in the sun for a day. While it's technically still "beer", it doesn't taste very good. The Class T Tripath stuff was more like chilled champagne just poured from the bottle.

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.