Ashdown Engineering NFR STUDIO MONITORS NFR-1 Manual Del Usuario página 3

ASHDOWN ENGINEERING - NFR-1 & NFR-2
USER GUIDE
INTRODUCTION
Following the design of the NFP-1/2 it became apparent there was a need for a
more economical monitor style speaker to be designed suitable for less demanding
applications.
The new design uses a PORTED cabinet to help
with the bass response, this involved some serious
consideration, In this type of arrangement the port
area is set by the cone area of the bass speaker,
if the Port area is smaller than recommended air
noises are produced, the dilemma and compromise
comes from the fact that the length of the port
required to tune the cabinet to a required frequency
is set by the area of the port. Not surprisingly it is
not uncommon to find that the required length will
not fit inside the cabinet, the usual solution to this
is to make the area of the port less which reduces
its length and increases noise. We chose a different
approach by making the port exit through the base
of the cabinet, a detachable section completes the
port and makes a stand for the speaker to sit on.
This novel idea also means that the speaker can be
used as a sealed enclosure by simply placing it on a flat surface without the stand or
used as a ported cabinet by placing it on the stand.