Help me with first mobile rig

hahaha sorry man, and big thanks for your projects and your helpfulness. we usually run reggae with our rig but for carnival we had some tekno djs and they where amazed from the system, so another proof that the cubo kick kicks as it should.

mobiele eenheidthanks, i knew i could reduce the reflex duct size, but i remeber mr cubo saying this would reduce output below 100hz... can't create energy from nothing! will have to see how much spl loss that means.

Cubo Kick 15 has 3 dividers/ bracing in the port at equal distance, this creates 4 ports of equal size. All ports open tunes the reflex section to about 80 Hz, if you start closing the individual ports, tuning goes 10 Hz down for every closed port. So you can tune the reflex section to 80 Hz, 70 Hz, 60 Hz and 50 Hz respectively. Around 50 - 60 Hz should be usable for a 12 V system.

Johan

You looked at the wrong bass face, it's the 1.2 and not the 2.1.
1.2 is digital :D

Ganon wrote: There are many people using the Pioneer GM-D8604 because it's cheap and perform well. And some use Bassface db 1.2 for bass, as it gives loads of power, is cheap and has both hpf and lpf :)

^ This.

Use the Pioneer as 2 x bridged channels, each with an 8R wedge as midtops. Enable the HPF at 110Hz.

Use the bassface with 2 x cubos for bass = 4R load. Enable the 50Hz "subsonic" filter, and set the LPF at highest freq = 108Hz.

Forget separate sub and kick.

Unless you have big bucks to spend, just get 2 x deep-cycle lead-acid batteries 100Ah or so each.

You are then at about the sensible limit for using battery power .... if you want higher power/more complex system than this - use a generator instead.

Hi, lots of questions; I can help with a few things.

Battery: Car batteries not so good, never run below 50%.
Leisure (deep cycle) batteries look the same, but are much better for running amplifiers and can give all their charge without dying.
Electric bicycle/laptop/lithium-ion batteries are best of all, but can be very expensive and are more complicated to get 12v. Good amps can handle a 16.8v (4x 3.7v) lithium-ion supply.

Amplifiers: Alpine make good amplifiers, but they do make several ranges of decreasing quality. The top tier PDX class D SMPS range are as good a class D amplifier as you'll find anywhere, but cost accordingly. They use less power due to their efficient design and SMPS, so you can last longer, go louder or use fewer batteries; in the context of system design, it can be cheaper to buy a more expensive amplifier... Also, the inbuilt crossovers are acceptable, usually a sweepable low/highpass between 50-400hz and a low cut switch (35 or 40hz?).

Always look to use separate amplifiers for different speakers. If you're lucky, you can build a 2 or 3 way system just using internal crossovers. Eventually you might move to an external crossover (Kenwood made some wicked ones that still command much respect and money).