INSTRUCTION MANUAL
SPECIFICATIONS
Model
Loudspeaker
Rated Power (RMS)
Power Taps 100V
Impedance
Sensitivity
Sound Pressure
Frequency Range
Cutout Size
Dimension (mm)
Weight
Finish
Colour
Mounting
INSTALLATION GUIDE
Step 1 – Cutout the hole size, either by tracing the cardboard cutout template or with a circular cutter set to the cutout size.
Step 2 – Pull the wiring through the cutout hole.
Step 3 – Connect the speaker wires. Please, ensure that the polarity is correct.
Step 4 – Insert the speaker into the ceiling and tighten. Insert the speaker into the ceiling as far as it goes, until the front rim
touches the ceiling. Turn the attachment screws CLOCKWISE to tighten the mounting tabs. DO NOT OVERTIGHTEN.
Step 5 - Connect the speaker. If you use a high impedance line (100 / 70V), connect it to the corresponding transformer terminal
according to the desired power. If you use an 8 line, connect it directly to the speaker terminals, disconnecting at first the
transformer cables.
A-257DTM Version 1.6
A-257DTM
Woofer 6,5" Kevlar
Tweeter 0,75"
60 W at 8 , 20 W at 100V
20 W – 10 W – 5 W – 8
666,7 – 1k3 – 2k7 – 8
90 dB SPL at 1 W, 1 m & 1 kHz
102 at 15 W, 1 m & 1 kHz
65 ~ 20.000 Hz
Ø 210 mm
Ø 227 x 87 (depth)
1,75 kg
ABS, metallic grille
White
Rotary tabs
1/1
CEILING SPEAKER
WARNING:
Installation by qualified personnel only.
Speakers must be wired in parallel and connected to
the correct line terminals of amplifier.
Ensure that all speakers have the same polarity with
respect to each other.
Do not select another tapings if the speaker is in use.
No naked flame sources, such as lighted candles,
should be placed on the apparatus
Tweeter Equalizer +3 dB/-3 dB
A-257DTM
.