Figure 4: The curves above show the effect of the ‘bass’, ‘mid’ and ‘treble’ level controls, and the
‘bass tilt’ and ‘bass roll-off’ controls on the free fi eld response, measured at 2 m.
Figure 2: Block diagram of the 1037C
Figure 1: The location of the acoustical axis of
the 1037C in horizontal and vertical confi gura-
tion
Figure 3: The upper curve group shows the horizontal directivity characteristics of the 1037C in its
vertical confi guration measured at 2 m. The lower curve is a 1/6 octave power response measure-
Crossover fi lters
The crossover frequencies of the active
crossover network are 420 Hz and 3.2 kHz.
In order to obtain uniform frequency balance
in different acoustic conditions, special cali-
brated controls are included in the crossover.
The Bass, Midrange and Treble level controls
operate in 1 dB steps. Moreover, the low fre-
quency Tilt and Roll-off controls both have
four 2 dB steps to allow refi ned LF response
tailoring. A high-pass fi lter is included in
the LF channel to protect the woofer from
subsonic signals. The crossover network
is driven by an active balanced input stage.
Variable input sensitivity allows for accurate
level matching to the mixing console.
Options
Order
code
Opt-01 Flight case
1037-401
Opt-05 Floor stand
1037-405-V
Opt-06 Carrying handles
1037-406
Opt-09 Grille
1037-409
Opt-11 Rack adapter kit
1037-411