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Bassreflex design: port diameter is larger than speaker, will it work?



 
 
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  #1 (permalink)  
Old September 22nd 08, 07:26 AM posted to uk.rec.audio
Iain Churches[_2_]
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Posts: 1,648
Default Bassreflex design: port diameter is larger than speaker, will it work?



"Stephen McLuckie" wrote in message
et...
Trevor Wilson wrote:


**If you use a bass guitar, then don't bother tuning much below 80Hz. For
lead/rhythm guitars, there is no need for any signal remotely that low.
Use a smaller box and tune higher.


I have been following this list for a while - mainly, but not always, as a
lurker - and I must say, I am in awe of the knowledge and expertise of the
people who post here. It's interesting, however, that there are a few
areas in which complete ignorance reigns.

Because the lowest frequency of a bass guitar cab (4-string) is around
40Hz, you should tune a bass guitar cab to around 45Hz. For normal
electric guitar, don't use a reflex cab, use a sealed cab or an
open-backed cab, depending on the parameters of the speaker.


5-string bass guitars are not uncommon - particularly
on recording sessions. The lowest string is normally
tuned to B natural, at approx 30Hz.

Iain



  #2 (permalink)  
Old September 22nd 08, 11:41 AM posted to uk.rec.audio
Arny Krueger
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Posts: 3,850
Default Bassreflex design: port diameter is larger than speaker, will it work?

"Iain Churches" wrote in message
.fi
"Stephen McLuckie" wrote in
message
et...
Trevor Wilson wrote:


**If you use a bass guitar, then don't bother tuning
much below 80Hz. For lead/rhythm guitars, there is no
need for any signal remotely that low. Use a smaller
box and tune higher.


I have been following this list for a while - mainly,
but not always, as a lurker - and I must say, I am in
awe of the knowledge and expertise of the people who
post here. It's interesting, however, that there are a
few areas in which complete ignorance reigns. Because the lowest
frequency of a bass guitar cab
(4-string) is around 40Hz, you should tune a bass guitar
cab to around 45Hz. For normal electric guitar, don't
use a reflex cab, use a sealed cab or an open-backed
cab, depending on the parameters of the speaker.


5-string bass guitars are not uncommon - particularly
on recording sessions. The lowest string is normally
tuned to B natural, at approx 30Hz.


Right, and if you do a proper job of transmitting them through an audio
system, the fundamental is significant.

Most bass guitar amps are not really all that competent of bass reproducers.


  #3 (permalink)  
Old September 22nd 08, 01:06 PM posted to uk.rec.audio
Iain Churches[_2_]
external usenet poster
 
Posts: 1,648
Default Bassreflex design: port diameter is larger than speaker, will it work?



"Arny Krueger" wrote in message
. ..
"Iain Churches" wrote in message
.fi
"Stephen McLuckie" wrote in
message
et...
Trevor Wilson wrote:


**If you use a bass guitar, then don't bother tuning
much below 80Hz. For lead/rhythm guitars, there is no
need for any signal remotely that low. Use a smaller
box and tune higher.

I have been following this list for a while - mainly,
but not always, as a lurker - and I must say, I am in
awe of the knowledge and expertise of the people who
post here. It's interesting, however, that there are a
few areas in which complete ignorance reigns. Because the lowest
frequency of a bass guitar cab
(4-string) is around 40Hz, you should tune a bass guitar
cab to around 45Hz. For normal electric guitar, don't
use a reflex cab, use a sealed cab or an open-backed
cab, depending on the parameters of the speaker.


5-string bass guitars are not uncommon - particularly
on recording sessions. The lowest string is normally
tuned to B natural, at approx 30Hz.


Right, and if you do a proper job of transmitting them through an audio
system, the fundamental is significant.


Agreed


Most bass guitar amps are not really all that competent of bass
reproducers.



For that very reason it is often avantageous to use a DI
(direct injection) box, and split the feed, taking a direct to
the console, with a mic on the speaker to capture the colour
which gives the stage sound its sonic signature.

The fundamental, 30Hz on a 5-string bass guitar,
is indeed significant.

Iain



 




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