Electro-Voice 409-engineering da User Manual

409  Series

COMMERCIAL

The Electro-Voice

®

 409 series loudspeaker systems are

two-way loudspeakers with 8-inch low-frequency cones
and high temperature voice-coil assemblies coaxially
mounted with wide-dispersion cone tweeters. The dual
magnet construction allows each speaker to be structurally,
magnetically, electrically and mechanically independent of
the other. The 409 series utilize a single section crossover
network, centered at 2500 Hz, providing 6 dB of attenuation
for each element outside the operating range.

The 409-8E is an 8 ohm, 32 watt speaker. The 409-ST (with
15700 transformer) and the 409-4T (with 15704 transformer)
both offer a selection of 0.5, 1, 2 and 4W. The 409-8T (with
15708 transformer) offers a selection of 1, 2, 4 and 8W. The
409-16T (with 15716 transformer) offers 2, 4, 8 and 16W
and the 409-32T (with 15732 transformer) offers a 4, 8, 16,
32W selection.

409 Series Loudspeakers. The loudspeaker shall have an
8-inch low-frequency cone and a high temperature voice
coil assembly coaxially mounted with a wide dispersion
cone tweeter. The loudspeaker shall meet the following
criteria. AES power rating shall be 32 watts of band limited
pink noise (85 Hz to 18 kHz, 6 dB crest factor). Frequency
response, uniform from 85 Hz to 18 kHz. Pressure
sensitivity, 97 dB SPL at 1 meter (95 dB at 4 feet) on axis
with one watt of band-limited pink noise from f

3

 kHz (ref.

20 uPa). Minimum impedance, 6.0 ohms. The
loudspeaker shall be 8.13 in (20.6 diameter and in (_cm)
deep and shall weigh lbs (_ kg). For dimensions see
next page.

The loudspeakers shall be EV (Electro-Voice®) models
409-8E, 409-ST (with 15700 transformer), 409-4T (with
15704 transformer), 409-8T (with 15708 transformer),
409-16T (with 15716 transformer) and the 409-32T (with
15732 transformer).

Power Rating: ........................... 32 watts, 85 Hz - 18kHz, AES method

Frequency Response: ........................................................ 85 - 18 kHz

Pressure Sensitivity: ........................................................... 97 dB SPL

Measured at one meter on axis with 1 watt input of pink noise, band-limited
from 500 - 3000 Hz (Ref.: 20 µPa)

Maximum SPL: .................................................. 112 dB for 32W @ 1M

Impedance:

Minimum ............................................................................. 6 ohms

Nominal .............................................................................. 8 ohms

8-inch, high-efficiency, low frequency driver with a coaxially mounted
2.5 inch cone tweeter.

Two-way at 2500 Hz with 6 dB per octave tweeter protection

Speaker: ................................... 0.212 in. push-on type connectors

Transformer: ........................................................................ Pigtails

Baffle Opening:

96.8 mm (3.812 in.) diameter (rear mounted)

104.8 mm (4.125 in.) diameter (front mounted)

Mounting Bolt Centers: ............................... 4  equally spaced slots

90° apart on 120.7 mm (4.75 in.) diameter circle

Dimensions: ........................................ Diameter: 206.5 mm (8.13 in.)

409-8E

83 mm (3.25 in.)

2.8 lbs (1.3 kg)

3.3 lbs (1.5 kg)

409-ST

98 mm (3.86 in.)

3.1 lbs (1.4 kg)

3.6 lbs (1.6 kg)

4094T

105 mm (4.13 in.)

3.3 lbs (1.5 kg)

3.8 lbs (1.7 kg)

409-8T

114 mm (4.50 in.)

4.0 lbs (1.8 kg)

4.5 lbs (2.0 kg)

409-16T

124 mm (4.86 in.)

4.5 lbs (2.0 kg)

5.0 lbs (2.3 kg)

409-32T

137 mm (5.38 in.)

5.0 lbs (2.3 kg)

5.5 lbs (2.5 kg)

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