List of systems with waves maxxbass chip MX3000

[wonderfulaudio]

Pls list the systems that use MX3000 or similar DSP for bass harmonic enhancement.

If we look at the bluetooth speakers and a few 2.1 multimedia systems one finds that their bass really is too good to be true for the diminutive size. Some of the systems use a small passive radiator but even then such a small box is not going to produce that bass without a help from some sort of DSP.

My gut feeling says they are relying on the MaxxBass chip MX3000 or something similar. MX3000 was (maybe is) available as an ASIC for such a market. It would be interesting to take it out and make as lightly bigger DIY system or a sub.

 

[jazbo8]

That defeats the whole purpose, as it's designed to work with small, portable speakers. You can also license the DSP code without buying the ASIC if that's what you really want to do...

 

[wonderfulaudio]

The technique extends the lower perceived cutoff by 1.5 octaves. Typically one finds 2"-3" driver in bluetooth speakers that sound as if they had 4" woofers. So, this can be scaled to a bigger system. An 8" sub could be made to produce bass 'similar' to a 12" sub or something like that.

The code route makes sense commercially, not worth for DIY

 

[TBTL]

Another trick those bluetooth speakers use is that they have a volume level dependent EQ which boosts bass (~75 Hz for the JBL Charge 2) at low volume levels. See these measurements: Oluv's Gadgets: Review: JBL Charge 2+ where's the plus?

 

[wonderfulaudio]

Many smaller systems use bass limiting based on the SPL. Some limit bass SPL as system SPL is increased, some limit the lower cutoff as systemSPL is increased, some do it based on temperature of the voice coil temperature is increased (indirectly derived by voice coil impedance during operation), there is a chip from NCP that does this.

It is not bass extension.

 

[Nenola]

Seems like these old iPod systems use it: Sonic Impact i-Fusion 5085 Portable Speaker System & Charger for iPod 648027050853 | eBay

Then there's this unbranded speaker: Bluetooth speaker / premium stereo speakers Bluetooth 4.1 / 20W output au... P/O 754047518577 | eBay

I wouldn't be surprised if it didn't have the chip, but who knows.

Then there's couple other speakers too, but cost too much if the purpose is to gut the electronics Anker Premium Stereo Bluetooth 4.0 Speaker for smartphone F/S 848061006209 | eBay

Pi Quartet Bluetooth 4.0 Waterproof Wireless Portable Speaker with MaxBass | eBay

 

[weltersys]

Many smaller systems use bass limiting based on the SPL.
It is not bass extension.

Neither is "bass harmonic enhancement" ;^).