A new device for improving the sound of your acoustic guitar has brought a big smile to my face so I thought a great way of spreading awareness of it is to get some of you guys to test it - and for your hassle you can have one FOR FREE.
All you have to do is pop in to the store and ask for the O-Port and I will give you one on the basis that you pop back HERE (this thread) and tell us all exactly how you got on with it - simple!
The O-Port gives your guitar more low end, a fuller tone and when testing in brief my end I am sure the guitar just resonates better!
I need to get views from players so what are you waiting for!?
I have limited numbers to give away so first come first served as they say.
See you soon!
Richard, I'm intrigued. Unfortunately, I live too far away to pop in for one to try out. In any case, my J40 has all the low end I want. However, I'd be most interested to hear any evaluations on how these perform on smaller-bodied guitars like OMs and 000s...will they fit smaller guitars by the way?
Did a bit of googling, and there seems to be quite a bit of discussion as to the o-port's similarity to the tornavoz pioneered by Antonio Torres in the 19th century. So, not an entirely new concept.
Registered: 08/07/10
Posts: 92
Loc: Cleveleys, Nr. Blackpool
Yeah, 3 hour ride from Blackpool or I would pop in for one. As a total beginner i am not sure how effective it would be for me though.
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------------------------------------------------------------------------- Just learning... slowly... need more focus... oh look a squirrel
Registered: 30/10/02
Posts: 6424
Loc: The wilds of Surrey
An acoustic guitar body works like a bass reflex (ported) loudspeaker enclosure. The hole makes the body act as a tuned resonator. The low frequency sound energy from the back of the bridge then emerges from the hole and adds to the energy from the front of the bridge, which is radiated directly from the body. The result is an improved output at low frequencies, i.e. more bass. This is why all acoustic stringed instruments have sound holes.
The effect of the O-Port is similar to adding a tuning pipe to a bass reflex cab, which is often done in order to keep the size down.
As with a ported bass cabinet, the guitar body needs to be designed properly from an acoustic point of view. Presumably those guitars that are improved by the addition of an O-Port are ones that weren't designed optimally in the first place. (I.e. they weren't designed for maximum bass. This may of course be intentional. Some people don't like a lot of bass.)
Conversely, adding an O-Port to an optimally designed body will presumably actually reduce the low frequency output! It would be interesting to know whether this happens in practice.
