Altec Lansing CD308-8A Speaker User Manual

16 W 70 V/100 V transformer with 70 V taps @ 16W, 8W, 4W and 2.0W

ARCHITECTS & ENGINEERS SPECIFICATION

Please note that larger volume enclosures will result in altered low frequency performance.

The loudspeaker shall be an Altec Lansing Professional CD308 series Duplex with an 8 inch (200 mm) diameter moistureresistant woofer and broad dispersion tweeter with heat resistant voice-coils. The speaker shall have a power rating of 16 W EIA / 64 W peak, a double magnet assembly and corrosion-resistant frame. The frequency response shall be 78 to 20,000 Hz +/- 5 dB with a sensitivity of 97 dB @ 1 W 1 m.

All transformers shall have a low < 0.6 dB insertion loss. The model numbers shall be Altec Lansing Professional CD308-8A for 8 Ohms impedance, CD308-4T with a 4 Watt 70 V/100 V transformer, CD308-8T with an 8 Watt 70 V/100 V transformer, and a CD308-16T with a 16 Watt 70 V/100 V transformer.

SAFETY CONSIDERATION

1. Appropriate connectors with suitable ratings must be used to make all installation connections.

2. All unused taps must be insulated with suitable insulation.

3. Transformers and speaker combinations must be supplied by a suitable amplifier incorporating ungrounded outputs only and reinforced insulation (as per IEC60065) from output

ACCESSORIES

ENCLOSURES AND BAFFLES

The CD308-series ceiling speakers will fit on standard

8 inch (200 mm) baffles, enclosures and back boxes.

Altec Lansing recommends use of our 8 inch (200 mm) round and square metal enclosures, grilles and tile bridge. The CD308 Series will also fit on standard industry ceiling speaker hardware.

All measurements were made in a standard AES baffle for a 12 inch driver. The driver was housed in a 1.0 ft3

(0.028 m3) enclosure.

Frequency Response (1 W 1 m on-axis)

Q & Directivity Index

MOUNTING DIMENSIONS

8.07 in (205 mm)

3.11 in (79 mm)

8.07 in (205 mm)

3.68 in (94 mm)

8.07 in (205 mm)

3.68 in (94 mm)

8.07 in (205 mm)

4.11 in (105 mm)

One Octave Polar Response Charts

6 dB/Division

As we are continually striving to improve Altec Lansing products, specifications are subject to change without notice.

TRANSFORMER CHART

Premium 4 W

Transformer

Premium 8 W

Transformer

Premium 16 W

Transformer

Primary Tap

Color Code

Primary Tap

Color Code