Altec Lansing 1224A User Manual

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1224A Biamplirier

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1219B Biamplified

Speaker System

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The Altec 1219B—a new standard of performance in clean,
high-level sound reinforcement. The Altec 1224A—a
rugged new biamplifier designed to take road abuse. And
it’s dependable—for continuous hassle-free performance.

The 1219B features our time-proven Voice of the Theatre
type components—a 418 type high-power bass driver in a
bass reflex enclosure, and an 81 IB horn with an 807-8B
driver. The Voice of the Theatre components and systems
have reached a level of fame second only to the performers
who use them, and the 1219B continues this tradition. And
the tough, epoxy-finished cabinet has a removable cover
for portability and protection.

SPECIFICATIONS

1224A

POWER OUTPUT—

Bass Amplifier:
Treble Amplifier:

INPUT SENSITIVITY:
TOTAL HARMONIC DISTORTION:
INTERMODULATION DISTORTION:

CROSSOVER FREQUENCY:
FREQUENCY RESPONSE:
SIGNAL-TO-NOISE RATIO:

INPUT IMPEDANCE:

MINIMUM LOAD IMPEDANCE:
CONTROLS:

CONNECTORS—

Input:

Jumper:

Output:
POWER REQUIREMENTS:
DIMENSIONS—

Overall:

Panel Cutout:
WEIGHT;

ACCESSORIES;

100 watts continuous (4 ohms)
60 watts continuous (8 ohms)
50 watts continuous (4 ohms)
30 watts continuous (8 ohms)

0.5V rms direct (for rated output,
gain controls at full boost)

Less than 0.15% at rated output
into 8 ohms
Unmeasurable by normal IHF method

500, 800 or 1500 Hz with 12 dB/
octave rolloff
20 Hz to 20,000 Hz, ±1 dB
(composite output)
88 dB

15.000 ohms direct

15.000 ohms with 15335A

transformer
600 ohms with 15095A transformer
2 ohms

1 amplifier gain control,

continuously variable. +3 dB to

-15 dB

1 high frequency control,

continuously variable, -19 dB to

-20 dB

1 electronic crossover frequency

selector switch: 500. 800 or
1500 Hz

1 press-to-reset pushbutton

circuit breaker

1 Cannon XL 3-pin female
1 Cannon XL 3-pin male

(to connect to another amplifier)
4 slip-on-type lugs (high frequency.

+, —: low frequency, -h, —)
120V ac, 50/60 Hz, 160 watts
at full outpul

6V4" H X 9%" W X 9" D

16.5 cm H X 25.1 cm W x

22.9 cm D

5Vi"Hx9y2"W

14 cm H X 24.1 cm W
16 pounds—7.3 kg
Altec 15335A Line Bridging

Transformer, 15,000 ohms
balanced

Altec 15095A Line Matching

Transformer, 600 ohms balanced

Biamplifier

We've tied the components together with our new 1224A^
biamplifier. Super stable and rugged. Low distortion.
Reliability. The result is a high-level powered speaker sys
tem which is super clean, portable, and dependable. The
biamp concept results in an efficiency of power transfer not
possible in conventional systems. And the 1224A is avail
able separately for use with other systems you may wish to
convert to the biamp advantage.

New from Altec. The 1219B powered speaker system, and
the 1224A biamplifier.

1219B

POWER OUTPUT (1224A)—

Bass Amplifier;
Treble Amplifier:

POWER REQUiREMENTS:

iNPUT SENSiTiViTY:
ACOUSTiC OUTPUT AT

MAXIMUM GAIN SETTINGS:

INPUT IMPEDANCE;

FREQUENCY RESPONSE:
CROSSOVER FREQUENCY:
SYSTEM COMPONENTS:

ENCLOSURE:

DIMENSIONS:

WEIGHT:
INPUT CONNECTORS:

60 watts
30 watts

160 watts at full output

0.5V rms

120 dB SPL measured at 4' on axis
with 0.5V rms input of pink noise
from 100 Hz to 10 kHz

15.000 ohms
35 Hz to 20,000 Hz.

800 Hz with —12 dB/octave slope

1 418-8H type Low Frequency

Musical Instrument Loudspeaker

1 81 IB High Frequency Sectoral

Horn
1 807-8B High Frequency Driver
1 1224A Electronic Crossover

Biamplifier
Bass reflex type. %" plywood

construction with resilient epoxy
finish. Recessed handles and
removable front cover.

30'/4" Hx28" Wx 19%"D

76.8 cm H X 71.1 cm W X

50.2 cm D
123 pounds (55.8 kg)
1 Cannon XL 3-pin female wired in

parallel to 1 Cannon XL 3-pin male

SOUND PRODUC T5 DIVISION

1515 S. MANCHESTER AVE.. ANAHEIM. CALIFORNIA 92803

AL-1840