Portable Two Channel Reverberation Unit
"The Black Box"
Brief Operation Outline
The AKG BX 15 has been designed to be truly portable
reverberation
unit,
based on the succesful Torsional Transmission Line principle used in
the
BX20.
A helical spring is driven at both ends in-phase to torsional
movements
and these mechanical movements are then picked up at both ends
again
but out of phase.
Together with the statistical variations of winding
and wire diameter of the helical spring and the introduction
of
reflexion points along the spring results in a high degree of
diffusion of the signal reflexions in both the frequency and time
domain
which appear in a similar manner in halls with good acoustics.
The unit consists of three basic elements:
1. The mechanical reverb system
whereby the used helcal spring sections are treated especially
for
precise dublication of natural room reverberation effects.
2. The electrical sub-panel, containing all control and powering
facilities.
3. The outer housing with especially designed damping methods
for
high acoustic feedback rejection and best isolation against floor
vibrations.
The AKG BX 15 offers genuine two-channel design with the provision for
mono drive.
Independent decay time adjustment, high and low frequency shelving
and
reverb/dry signal mixing for each channel are incorporated.
Standard XLR-type connectors are provided for each input and
output.
The AKG BX 15 can be connected to a wide range of associated
equipment
because of its adjustable input sensitivity and
the buit-in copmressor/limiter circuitry.
Technical Data
External dimensions: 17W X 12H X 19D inches (43 X 30 X 49
cm)
Weight: 47 lbs. (21 kg)
Links
Used by
Klaus Schulze
Tomita
Updated
December 28, 2008