9
Oper
ation & Specifica
tions
Operation
Listening at Higher Volumes
It requires more power to achieve a rea-
sonable volume of sound in a large room
than it does in a small room. It is possi-
ble (even if you are not a teenager) to
turn the volume so high that the amplifi-
er runs out of power. This creates “clip-
ping” distortion.
Clipping distortion makes treble sound
very harsh and unmusical. When you hear
harsh sounding treble from any good
speaker, turn the volume down immedi-
ately! Those harsh sounds are masking
some much more powerful ultra-high-fre-
quency sound spikes which will quickly
damage any fine loudspeaker. You are
much less likely to damage a speaker with
a large amplifier because it will be very
loud indeed before it produces any clip-
ping distortion.
Cleaning
You can clean the speaker enclosure with
a dampened soft cloth or paper towel.
Specifications
Model HD•CTR
BX
Driver Compliment
(2) 5-1/4” Magnetically Shielded Mica-Filled
Polypropylene Woofers
1” ElastoDynamic
™
Hybrid Dome Tweeter
with fluid cooling
Design Principle
Acoustic suspension with a tuned port.
Directed Sound Field Geometry
™
for opti-
mum phase and frequency response
Recommended Amplifier Power
Ten to One Hundred Fifty Watts per
Channel
Nominal Impedance
8 Ohms
Frequency Response
45 Hz to 21,000 Hz, plus or minus 3 dB
(on axis)
Sensitivity
90 decibels for 2.83 volts of Pink Noise,
measured at 1 meter on axis
Overall Exterior Frame Dimensions
21” L x 7-1/4” W x 9-3/4” D
Weight
18 lbs.
Wiring Requirements
We recommend 16 to 18 gauge for up to
80 feet, 14 gauge for up to two hundred
feet. Connectors accommodate 12 to 22
gauge wire.
