GBfans Soundboard-- Speaker-question

Equipment Proton Packs
1

Hey guys,

i hope you can help me.

I got my GBfans soundboard now and have a 8ohm 100w speaker.

Thats a very small speaker and the sound isnt good.

Than, second, i have a 4Ohm 250W speaker, its much bigger and the sound is very loud and good.

So now my question: are 4 ohm ok or have i to do a 4ohm speaker in series with another 4ohm speaker?

Can the soundboard go damaged with only one 4ohm speaker?

Thanks and best regards from germany

Erik

2

You want to match the impedance, so yes, you’d want 2 4-ohm speakers.

3

Hey guy,

What means that? So i have to put 2 4ohm speaker or i CAN put two spsaker?

Will i destroy the board with only one 4ohm speaker?

4

You will need to wire two 4 ohm speakers in series to get the required 8 ohm impedance.

Connect the positive from one speaker to the negative of the other speaker, and then wire the remaining positive and negative to the sound board.

5

Oh noo. That means i have to conect two speakers.. in the description is written that we can use between 4 and 8 ohm.

What will happen with only one 4 ohm speaker?

6

hey guys,

sorry that my english is not soooo good.

What means your posts now: is it possiple with the gbsoundboard and only one 4ohm speaker or will i destroy it?

Please help me,

best regards

Erik

7

I’m not an audio guy, but I believe if you drive a 4ohm speaker with an 8ohm amp, you can damage the amp. I would get a second 4ohm speaker and wire them in series to be safe.

8

This particular amplifier is designed for an 8 ohm speaker, but should not be damaged if you use a 4 ohm speaker.

The amplifier does have Short-Circuit and Thermal-Overload Protection so should not be damaged with lower impedance speakers but at higher volumes the amplifier’s built-in soft current limit (2A) could cause additional distortion and the hard current limit (2.5 A) could cause the amplifier to turn off/on repeatedly and the sound quality will be terrible.

The hard limit could easily be invoked if you have a 4 ohm speaker and a 12V battery. Marginal with a 9.6V battery. Neither battery voltage would cause a problem when used with an 8 ohm speaker (or two 4 ohm speakers connected in series).

  • Doug