Altec Lansing 601-8D User Manual

601-8D DUPLEX

SOUND PRODUCTS DIVISION

LOUDSPEAKER SYSTEM

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DESCRIPTION

The ALTEC 601-8D Duplex Loudspeaker System

is a two-way loudspeaker with high- and lowfrequency speakers coaxially mounted in a single frame. The dual magnet structures allow each speaker to be magnetically, electrically and mechanically independent. Coaxial driver arrangement also provides the effect of an inte

grated source of full-range sound. All frequen cies are propagated through a common

'window' to ensure good stereo imagery when

multiple 601-8D's are used. The high-frequency section has a voice coil of

edge-wound aluminum ribbon attached to an

aluminum diaphragm and loaded with a sturdy exponentially expanded multicellular horn. The low-frequency cone is driven by a voice coil of edge-wound aluminum ribbon, and is sup ported by a high-compliance cloth surround.

The 601-8D is a fine loudspeaker for general-

purpose sound reproduction applications. It is

designed to operate in enclosures as small as

2.5 cubic feet, and its relatively small physical size permits excellent wide-range performance

in environments which would otherwise utilize lower quality, single-driver speakers.

SPECIFICATIONS

Type:

Power Rating:

Frequency Response:

Pressure Sensitivity:

Impedance:

Nominal Free-Air LF

Cone Resonance:

Distribution Pattern:

Voice Coils —

LF:

HF:

Magnets-

LF:

HF:

Duplex coaxial loudspeaker

system with dividing network 40 watts of continuous pink

noise (20-20,000 Hz) 30 to 20,000 Hz in

appropriate enclosure 99 dB SPL at 4' measured on

axis with 1 watt input of pink

noise band-limited from 500

to 3000 Hz with speaker

mounted in 614D enclosure

8 ohms

39 Hz 40°Vx90°H

3" diameter, edge-wound

aluminum ribbon

diameter, edge-wound

aluminum ribbon

Alnico, 1.8 pounds, 10,400 gauss flux density

Alnico, 0.188 pound,

10,000 gauss flux density

Frame:

Dividing Network

(furnished):

Dimensions:

Finish:

Mounting Data —

Baffle Opening:

Mounting Bolt Centers:

Recommended

Enclosure:

Shipping Weight: Actual Weight:

Structurally reinforced die-cast aluminum

Dual full section with 3000

Hz crossover frequency, 12 dB/octave slope and continuously variable HF shelving control with 10 dB

range

12ys" (30.8 cm) diameter

(14.3 cm) deep

Gray enamel

11 >/8" (28.3 cm)

(front or rear mount)

8 or 4 bolts equally spaced on 11%" (29.4 cm) diameter circle

ALTEC 614D Speaker Cabinet

18 pounds (8.2 kg) 15 pounds (6.8 kg)

(includes dividing network)

ARCHITECT'S AND ENGINEER'S SPECIFICATIONS

The loudspeaker system shall be a two-way coaxial, with a separate magnet structure for each section and a dual full-section dividing network. The HF section shall have an aluminum diaphragm and shall be

loaded with an exponentially expanded multicellular horn. The loudspeaker system shall meet the follow ing criteria. Power rating, 40 watts of continuous

pink noise band-limited from 20-20,000 Hz. Fre quency response, 30-20,000 Hz. Pressure sensitivity, 99 dB SPL at 4' when measured on axis in enclosure with 1 watt input of pink noise band-limited from 500-3000 Hz. Impedance, 8 ohms. Nominal free-air

LITHO IN U.S.A. 875-5K

LF cone resonance, 39 Hz. Distribution pattern, 40°V X 90°H. Crossover frequency, 3000 Hz with 12 dB/octave slope. Voice coils; 3" diameter of edgewound aluminum ribbon (LF), 3/4" diameter of edgewound aluminum ribbon (HF). Magnets; Alnico, 1.8 pounds (LF), 0.188 pound (HF). Flux density, 10,400 gauss (LF), 10,000 gauss (HF). Dimensions, 12V8" diameter x 5%" deep. Weight, 15 pounds.

The loudspeaker system shall be the ALTEC Model 601-8D.

ALITEIC

SOUND PRODUCTS DIVISION

1515 SOUTH MANCHESTER AVENUE, ANAHEIM, CALIFORNIA 92803

AL-1412-12