Electro-Voice FM4.2 Data Sheet

Electro-Voice | EVID FM4.2

EVID FM4.2

▪ 4 inch two-way system with polypropylene

diaphragm for reliable long-term operation

▪ Extremely compact depth fits into tight spaces

including walls and tight ceiling spaces

▪ Titanium coated tweeter gives even uniform high

frequency coverage

▪ Front baffle wattage tap adjustment allows for easy

level matching after installation

▪ Integrated low loss matching transformer allows for

either 70v/100v or 8 ohm operation

The EVID FM4.2 flush-mounted loudspeaker system
from Electro-Voice is a complete two-way in-wall
loudspeaker package. The package consists of a bezel
assembly, grille, rear enclosure, 4 inch two-way
loudspeaker coupled with a 4 inch passive radiator
and an internal line-matching transformer. The
loudspeaker features 4 inch low-frequency cone and
high-temperature voice-coil assembly along with a 4
inch long excursion passive radiator and titanium
coated dome tweeter. The EVID FM4.2 loudspeaker
utilizes a crossover network, centered at 3,600 Hz,
that provides 16-dB-per-octave tweeter protection
outside of its operating range. In addition the EVID
FM4.2 features a comprehensive protection circuit to
shield the woofer and tweeter drivers from excessive
power levels.
The EVID FM4.2 utilizes a transformer that offers a
selection of 1.75, 3.75, 7.5, 15 or 30 watts delivered to
the loudspeaker system using either 70-V or 100-V
lines. The wattage is selected via a convenient switch
on the front baffle. The unit can also be operated as an
8-ohm speaker via the same front panel selector
switch.
The perforated grille is finished in semi-gloss white
powder-coated enamel. The baffle and bezel is
constructed from heat resistant ABS. The rear
enclosure is constructed from zinc-plated, steel. The
rear enclosure provides an optimum internal volume,
ensuring extended low-frequency performance. It is
constructed from heavy-gauge, rugged steel. The steel
rear enclosure was optimized using FEA to virtually
eliminate panel resonance. The entire enclosure is less

than 4 inch deep providing an easy installation into
nearly any tight wall or ceiling space. A rear cover,
with provisions for a junction box fitting, provides
access to a 4-pin terminal block that allows direct
connection to the speaker and provides pass through
to additional speakers. FM4.2 loudspeakers provide
wide dispersion, high-efficiency, high-maximum
output, ease of installation, and wide-range
reproduction of music or voice.

Technical specifications

Frequency Response (-3 dB): 70 Hz - 20 kHz

Frequency Range (-10 dB):

Sensitivity: 87 dB (SPL 1W/1m)

Maximum SPL:

Coverage: 150°

Impedance:

Crossover Frequency:

Rec. Highpass Frequency:

Power Handling: 50W Cont. Prog. / 200W Peak

HF Transducer:

LF Transducer:

52 Hz - 20 kHz

110 dB

1

8 ohms nominal (transformer
bypass)

3.6 kHz

70 Hz

2

1 in (25.4 mm)

4 in (101.6 mm)
Passive Radiator: 4 in. (101.6 mm)

5.39"

[137.0mm]

3.45"

[87.6mm]

7.42"

[188.3mm]

13.77"

[349.9mm]

3.80"

[96.5mm]

50 100 1000 10000 20000

3.

16

10

100

70

80

90

100

110

Impedance (Ohms)

Sensitivity (dB)

Frequency (Hz)

Frequency Response, Half Space
Impedance

2 | EVID FM4.2

Transformer Taps: 70V: 1.75, 3.75, 7.5, 15, or 30W

100V: 3.75, 7.5, 15, or 30W
Bypass: 8 ohms nominal

Connectors:

Enclosure Material:

4 pin phoenix style terminals

Baffle: UL 94V-O rated ABS
Backcan: Zinc plated steel

Color: White

Grille:

Perforated powdercoated steel with
safety tether

Mounting System:

Integrated toggle anchors

Support Hardware: Cutout template, Paint Shield

Dimensions: 349.9 mm x 188.3 mm x 96.5 mm

(13.77 in x 7.42 in x 3.80 in)

Net Weight (Each):

Shipping Weight (Pair):

1

Measured on an IEC Baffle. Symmetric coverage

2.9 kg (6.5 lb)

6.8 kg (15.0 lb)

angle.

2

Continuous Program Rating: 3 dB greater than
continuous pink noise rating (IEC-shaped pink noise
with 6 dB crest factor)

Block diagram:

Dimensions:

Notice!

All specifications based on Half-Space Envi-

ronment as flush-mounted.

Architectural and engineering specifications:

The EVID FM4.2 loudspeaker system shall be
comprised of a baffle/bezel assembly, front grille, rear
enclosure, transformer, 4 inch passive radiator, and 4
inch loudspeaker. The loudspeaker will feature a 4
inch low-frequency cone and a high-temperature voice­coil assembly, coupled with a 4-inch passive radiator.
A 1 inch wide dispersion titanium coated dome
tweeter extends the response to 20 kHz. Frequency
response, uniform from 85 Hz to 18 kHz. Pressure
sensitivity, 87 dB SPL at 1 meter (85 dB at 4 feet) on
axis with one watt of band-limited pink noise from 500
Hz to 3 kHz (ref. 20

μPa). Minimum impedance, 8.2
ohms. The loudspeaker shall be 349.9 mm (13.77 in)
by 188.3 mm (7.42 in) and 96.5 mm (3.80 in) deep.
Weight shall be 2.9 kg (6.5 lb) each. The flush­mounted loudspeaker package shall be the Electro­Voice model FM4.2.

Frequency response and impedance: