Atlas Sound FC104T, FC104-T70 specifications High-Compliance Loudspeaker with Transformer

FC104 Series

4" High-Compliance Loudspeaker with Transformer

Base Speaker Specifications

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FC104T

(Shown with Transformer. Bracket is not supplied unless transformer version is ordered.)

Applications

Utilize Atlas Sound 4" high-compliance loudspeaker Model FC104 for voice transmis­sion,­ music and signal repro­duc­tion­ in commercial, indus­tri­­ al and insti­tu­tion­al­ applications of all kinds, especially those where a high performance loudspeak­er­ is required and wide dispersion is demanded.

General Description

This compact, full-range, 4" (127 mm) loudspeaker is equipped with a damped, high-compliance cone which provides ­excellent low frequen­cy­ repro­duc­tion­ and smooth extended response. Model FC104 also offers a wide dispersion angle which reduces the number of loudspeakers neces­sary­ to achieve total cover­age­ in low-level distri­bu­tion­ systems. The 10 watt, 8Ω model (w/o transformer) offers a frequency response range of 150 Hz – 17 kHz, sensitivity of 94 dB (1 W / 1 M) and a disper- sion angle of 135° (-6 dB, 2 kHz octave band). The unit contains a 10 oz (283 g) ceram­ic­ magnet with a flux density of 10,500 gauss. Loudspeaker is available with three different factory installed line matching transform- ers to meet a variety of project requirements. A dual-purpose bracket securely mounts the transformer in a low profile position and enables torsion spring mounting found on many Atlas Sound baffles. (Bracket not included on base model FC104.) For additional information on Atlas Sound Transformer models, refer to #SL1-1369.

Features

•Industry Standard, 10 watt, 4" High-Compliance Loudspeaker

•Offers Proven Performance with Wide-Angle Sound Dispersion

•Efficient Wide-Range Frequency Response

•Versatile 8 watt, 70.7V (25V / 70.7V with model LT-87) Transformer with taps from .5 – 8 watts

•Ideal for Public Address and Background Music Installations

•Mounts In a Large Selection of Atlas Sound 4" Enclosures and Baffles

Speaker Size	4" (127 mm) (5" E.I.A. Standard)
Speaker Type	High Compliance
Power Rating	10 watts Program
Frequency Response	150 Hz – 17 kHz (± 5 dB)
Magnet, Ceramic	10 oz. (283 g)
Resonance	101 Hz
Voice Coil Impedance	8Ω
Voice Coil Diameter	1" (25 mm)
Flux Density	10,500 Gauss
Depth (w/o Transformer)	21⁄4" (57 mm)
Sensitivity (Peak)	94 dB (1W / 1M)
Dispersion	135° (-6 dB, 2 kHz Octave Band)

FC104-T70

Transformer Model	LT-70
Primary Voltage	70.7V
Transformer Freq. Resp.	100 Hz – 10 kHz (±1.5 dB)
Primary Taps	.5, 1, 2, & 5 watts
Secondary Impedance	8Ω
Insertion Loss (Max)	1.5 dB
Core Size	1⁄2" x 5⁄8" (13 mm x 16 mm)
Power Rating	5 watts

FC104T72

Transformer Model	LT-72
Primary Voltage	25V / 70.7V
Transformer Freq. Resp.	100 Hz – 10 kHz (±1.5 dB)
Primary Taps	.5, 1, 2, & 4 watts
Secondary Impedance	8Ω
Insertion Loss (Max)	1.5 dB
Core Size	1⁄2" x 5⁄8" (13 mm x 16 mm)
Power Rating	4 watts

FC104T

Transformer Model	LT-87*
Primary Voltage	70.7V
Transformer Freq. Resp.	50 Hz – 15kHz ±1.5dB
Primary Taps	.5, 1, 2, 4, & 8 watts
Secondary Impedance	4Ω & 8Ω
Insertion Loss (Max)	.6 dB
Core Size	1" x 3⁄4" (25 mm x 19 mm)
Power Rating	8 watts

*FC104T includes a special version of Model HT87 transformer that includes a .5 Watt tap.

1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A. TELEPHONE: (800) 876-3333

FAX (800) 765-3435

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