ATP3 configured the IC to work both in single ended and bridge, 2 channel in single ended configuration for powering satellite speakers and 1 bridge configuration for powering the subwoofer. This amplifier IC can be configured to work either in dual bridge or quad single ended amplifier.

The heart of this amplifier is quad power amplifier TDA7337 integrated circuit (IC) from SGS-Thomson. Volume, bass, treble control and right speaker is connected to amplifier using 7pin mini-DIN connector. Left satellite speaker is connected to amplifier using RCA connector. Input signal is connected to amplifier using 3.5mm stereo connector. I opened up the ATP3 subwoofer and found that amplifier circuit is located inside subwoofer enclosure. But I'll also be on the lookout for something better too.In this project, I want to replace ATP3’s original satellite speakers with my Selenium surround speakers. On par, if not a bit better than the Cambridge Soundworks digital. Perhaps it's not even possible for computer speakers. Something forward and in-my-face kinda thing. I'm not a dum-bass - at least I hope not, but I was looking for speakers that were a tad more exciting than these. When I tried to turning up the bass, it just got more muddy, boomy, and just plain ugly. But for some odd reason there was no low bass.

The midbass was good, well controlled an tight. Speaking of bass, this was one facet of the ATP3s that I found lacking. That was kind of a surprise to me, considering most mass market speakers cater to bass addicts. Overall, the system is somewhat on the bright side. They did get a little harsh at times though. Compared to my Cambrige Soundworks digital, the midrange on the ATP3 is definitely sweeter and smoother. Maybe I was expecting too much out of a pair of multimedia speakers. I found the sound quality decent at best. Replacable speaker wires would've been much less restricting. The speakers hook up to the sub/amp unit with short, undetachable cords. Versatility was another problem with the ATP3. The satellites and sub are pretty light too, giving them that 'cheap feel', if you know what I mean. I'd say the front panel is about the size of a TV remote. Perhaps I've been spoiled by my headphone setup, but I wasn't incredibly impressed with the ATP3s.įirst off, they look a lot cooler in pictures than they do in real life. Well, I went with Ian and Neruda's suggestion to get the Altec Lansing ATP3 multimedia speakers.

Speaker altec lansing atp3