Mackie PA151 User Manual

Vision Series

Two-Way Speaker System

P A151

SPEAKER

■ The PA151 is an extremely versatile, wide-disper-

sion, two-way loudspeaker system offering substantial
power and value for a variety of professional applica­tions that include primary sound reinforcement and
supplementary fill for large speaker systems.

■ The low-frequency transducer is a 15" woofer with a

sturdy 3" voice coil that can provide excellent low-fre­quency response along with high power handling. The
high-frequency section combines a modified constant
directivity horn having a 1" exit and coupled to a com­pression driver with a 1.75" diaphragm assembly.

■ The system includes a high-level crossover network

that features markedly lower (than conventional)
induction values in series with the woofer. We call this
innovation LICC (Low Impedance Compensated
Crossover). The benefit is delay reduction, reduced
phase shift and superior transient response. Dynamic
high-frequency driver protection is accomplished with
a fast-response filament resistor, chosen to comple­ment the power curve of the driver. The PA151’s
crossover is easily bypassed for bi-amp or tri-amp
(with the PA180SW) operation via an installer-accessi­ble changeover block. Back panel indicators display
the current system setting.

■ The Mackie Industrial PA151 is a part of the VISION

family of loudspeaker products including full-range,
cost-effective, two-way loudspeakers and complemen­tary subwoofer cabinets. The two-way enclosures have
a trapezoidal footprint for easy array configuration. All
enclosures are constructed using 19mm void-free,
birch plywood and finished with a scratch resistant
black coating. Transducer components are protected
from the environment by a heavy gauge metal grille.
The VISION products are eminently suited for fixed
installation, ready for suspension, via built-in M10
inserts with metal reinforcement and forged shoulder
eyebolt hardware.

■ This Mackie Industrial product is covered by an

exclusive, one-time, NO FAULT repair policy in addition
to a five year limited warranty.

Features

■ 15" high-efficiency, 3" voice-coil LF transducer

■ 90° x70° modified constant-directivity horn with 1"

compression driver

■ Dual-function design: built-in passive crossover

or external bi-amp

■ Trapezoidal enclosure for array configurations

■ HF driver dynamic protection

■ 19mm birch plywood construction

■ Twelve suspension points (M10) and standard

suspension hardware

■ Integrated hand-carry locations

■ Exclusive Mackie Industrial — one-time, NO FAULT

repair policy

■ 5 Year Limited warranty

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PA151

APPLICATIONS

■ Cluster Configurations

■ Live Music Reinforcement

■ High-Level AV Playback

■ Large Speech Systems

Two-Way Speaker System

P A151

SPEAKER

PA151

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Specifications

System

Freq. Range (–10dB): 50Hz–20kHz
Freq. Response (–3dB): 80Hz–18kHz
Horz. Coverage Angle (–6dB): 90° averaged

2kHz to 10kHz

Vert. Coverage Angle (–6dB): 70° averaged

2kHz to 10kHz

Directivity Factor; Q (DI): 9.5 (9.8) averaged

2kHz to 10kHz
System Sensitivity1: 97dB, 1W @ 1m
Rated Maximum SPL: 130dB, @ 1m
System Nominal Impedance: 8Ω
System Input Power Rating2: 300W RMS; 1200W Peak
Recommended Amplifier3: 450W
HF Protection: Dynamic
Crossover: 1.7kHz, 12dB/octave

Transducers

Low-Frequency: 15" (380mm) woofer with

3" (76mm) coil
Nominal Impedance: 8Ω
Input Power Rating: 250W AES; 1000W Peak
Sensitivity1: 99dB, 1W @ 1m
Recommended Amplifier3: 400W
High-Frequency: 1" (25mm) throat, 1.75"

(44mm) coil diaphragm assembly
Nominal Impedance: 8Ω
Input Power Rating: 35W AES; 140W Peak
Sensitivity1: 107dB, 1W @ 1m
Recommended Amplifier3: 50W

Physical

Enclosure: Trapezoidal, 15° side angles,

19mm multilayered birch

Rigging Inserts: 12 points; accepts M10 threaded

hardware, 3 eyebolts provided
Color: Black, scratch resistant paint
Grille: Custom perforated steel grille

with open-cell poly fiber backing
Input Connectors: Speakon®NL4
Dimensions (HxWxD): 27.44" x 17.90" x 16.93"

(697mm x 455mm x 430mm)

Net Weight: 72.6lb. (33kg)

Options

PA-A1 Forged shoulder M10 eyebolt hardware

1

Measured on axis in the far field with 1 watt (2.83V RMS, 8Ω) input and referenced to 1 meter distance
using the inverse square law. Listed sound pressure represents an average from 300Hz to 3kHz.

2

RMS using 20Hz to 20kHz, PN Spectrum, Peak for 2 hours with +6dB crest factor.

3

Recommended Amplifier is a power capability value thatshould be taken as a guide.