The Worlds Largest Basshorns
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Introduction
Don’t ask why.
Ask why not
Is that little 4”
‘subwoofer’ not quite cutting it?
Low frequency
output demands a long horn. For efficiency the mouth must be large.This results in an imperfect,but largely astounding performance.
More horn design
1 Gjerstad Horn
“Here is some information about the
horns:
The history behind the horns started
last year when they did not have enough low bass on the Mølla
festival in Gjerstad (
The festival boss Knut Magne Valle contacted me and
said he had bought two P Audio BM 18LF and wanted to have the most efficient
bass cabinets at a maximum length of seven meters. Not quite the dream driver
for a large horn, so I used three full days modelling and calculating a special
horn for these drivers.
To compensate for the weak motors I
ended up with an open back sideloaded design where
the horn does all the damping.
Frequency response is pluss minus 1 dB in the bandpass
from 23-250 Hz, and the phase response is pluss minus
10 degrees in the intended bandpass from 23-80 Hz.
The horns was built by Jarle Grimsland and Knut Magne Valle, it took the
brave boys a full week to build them. They used
Just to get an idea of how loud
these monsters can play, they made ripples on the ponds just like in
2 6090 Monster Another by Rune Skramstad.
4
6m ‘Petal’ horn Recent European Addition.
