(Topic ID: 242398)

Send more power to cabinet speaker ?

By jimy_speedt

7 months ago

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  • 13 posts
  • 5 Pinsiders participating
  • Latest reply 7 months ago by wawa777
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#2 7 months ago


I guess you are talking about the sub? There is no balance available AFAIK, so this will require some additional parts to solve.

Even though the solution is right to add more power to get it louder, the power handling ability of the speaker doesn't really matter for how loud it plays.

The stat in question is its sensitivity (or efficiency - how the speaker converts power into sound). The sensitivity is standardized to be measured in dB (how loud it plays) at 1W power measured in the distance of 1m. Usually you see this in a speaker's stats like this:

Sensitivity: 90dB

The higher the value, the louder the speaker. Increasing the volume by 3dB doubles the power needed.

If the new sub is playing lower than the original, than it is less efficient and you need more power. You can get a ready to use solution from Pinwoofer for $90.

Alternatively you could go the DIY route with a line signal converter
(e.g. amazon.com link »)
and amp module
(e.g. amazon.com link »)
costing between $20 - $100 intotal depending on the amp you buy.

#9 7 months ago

A sensitivity of 90dB is above average and rather good. Above 90dB is excellent.

I doubt that the original cabinet speaker was playing louder.

Of course you’ll get it louder with pinwoofer or a DIY amp solution. But I wouldn’t expect too much true “Boom” with the current setup in this machine (of course that is also a matter of perspective).
It will result in a quite dominant mid-high bass dominating the mix without any depth or sub bass. Some people like that, but it’ll sound quite unnatural.

A true and integrated “Boom” would require a bit more work like balancing the subbass (EQ), matching the signal to the back box and playing position (SPL mic or better REW and a calibrated mic), a bigger woofer or even array of woofers.

#13 7 months ago
Quoted from PinWoofer:

Note that the LPF -3dB cutoff is ~178Hz so the amp is delivered and reproduces mostly low bass. Sure, a larger cone will reproduce the lower tones more efficently but the 6" will be quite effective in creating a nice rich bass tapestry and will greatly improve the sound. Let's see where jimy_speedt goes with this and get his feedback.
Thanks for your comments - much appreciated.
[quoted image]

You are right. I am not really concerned about the amp. Probably I am overcomplicating, it's a good speaker, but it lacks bass.
The dynavox drops steep below 70Hz and there is not that much jimy_speedt could do about it in the pin cabinet (beside probably EQing the signal).

I agree that it most likely will exceed his expectations, but with his speaker he will be ca. 6-7dB under the 6" Pyles at 50Hz. Looks like a quite audible difference to me. Not everybody is as crazy to get a good 30Hz, but the dynavox looks like it would need some support for lower bass frequencies.

dynvox DY166-9A 4Ohm (resized).png
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