409 Series
8-inch Premium
High Performance Ceiling
Loudspeakers
COMMERCIAL
General Product Description
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.
Architects’ and Engineers’ Specifications
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
Components:
8-inch, high-efficiency, low frequency driver with a coaxially mounted
2.5 inch cone tweeter.
Crossover Network:
Two-way at 2500 Hz with 6 dB per octave tweeter protection
Input Terminals:
Speaker:
................................... 0.212 in. push-on type connectors
Transformer:
........................................................................ Pigtails
Specifications:
Mounting Data:
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.)
Net
Shipping
Depth
Weight
Weight
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)
Finish:
Black
