Axiom Home Page Forums General Discussion Advice from Axiom Owners Sub advice : my head hurts

I'm not sure I would consider that an upgrade, a PB13, maybe.

I agree with Bruno, the PB12 - plus is a bit of a step below the EP600 IMO, at least the non DSP was.

you guys sure? Have you seen the output levels of the PB12Plus DSP on the Audioholics review? I directly compared them to what Ikka did on HT Shack for the EP600 and it looks like the PB12Plus has much more output below 30Hz.

2 different tests and procedures IIRC, can't really compaare the results. The PB12-plus does have an outstanding review though.

Jake, regardless of different test procedures, look at the graphs. The SVS doesn't compress like mad like the EP600 does below 35Hz. I wish there was a way to defeat the DSP of the EP600 so we could really like that pup breath

DSP in subs probably isn't going to be limiting performance, but stretching it beyond what an amp+driver would normally be able to do. So if the DSP is limiting the cone movement below 35 Hz, it's doing so because without it, the cone would be hitting the limits of travel at some playback levels. Those levels would not normally be reachable, with a less powerful amp. So what the DSP is doing is allowing a manufacturer to use raw power to get a sub to safely play lower than it normally could.

ClubNeon, understood. Seems crazy that the EP600 in a much larger box just doesn't have the output capability of the smaller SVS. Still in my room the EP600 does a fine job rattling my space so I suppose its just picking nits....well, OK how will the SVS rattle my room? Inquiring minds want to know

Only one way to find out.

If the test procedures are different the results could very well be different too (I doubt it in this instance but you never know). Even Illka had different results with the exact same tests on his second test of the EP600 than from his first.

Looking closer at the graphs I would say the new PB12-plus with DSP is probably equal to my 3 yr old PB13 Ultra. Price is now about the same as I paid as well. They have really increased their pricing.

Ikka's SPL vs Frequency measurements are virtually identical for both trials. He also showed that the EP600 had lots of distortion at low frequencies, even more so on the second trial. He mentions that the EP600 had some good and bad things about how they implemented the DSP. Again the EP600 has far more compression below 30Hz than the SVS, that much is very clear when comparing the measurements of both products which were both down using groundplane technique.