Community ALC-1604D Specifications

Amplified Loudspeaker Controllers

2-Channel and 4-Channel Units with DSP and Dante®

FEATURES

• Output power optimized to match

• Drive low impedance, 70V or 100V

• Fast and easy access to complete

• 1024 Tap FIR Linear Phase DSP

DESCRIPTION

Community's line of Amplified Loudspeaker Controllers (ALC) oers factory-optimized
DSP processing, protective limiting and amplification, as well as signal routing, zone
switching, and remote monitoring for virtually any Community loudspeaker application.
Standard Ethernet communication protocols allow for fast system design, system
control, and remote system monitoring. Analog and Dante® inputs included in each model
are assignable per channel in static or failover/backup configuration, supporting quick
and easy integration into any new or existing system.

Carefully chosen to precisely match the needs of all Community loudspeakers, three
models of Amplified Loudspeaker Controllers are available: ALC-404D (4 channels
x 400W), the ALC-1604D (4 channels x 1600W), and the ALC-3202D (2 channels x 3200W).
Bridged channel pairs support driving loads down to 4 ohms at double the power of a
single channel, providing additional flexibility for real-world Community loudspeaker
system applications.

Community-authored loudspeaker presets include equalization, high pass filters, and
multi-stage limiters tailored to each model, ensuring consistent sound quality and full
loudspeaker protection in every application. Additionally, each Community loudspeaker
preset includes loudspeaker power and impedance information, allowing the system
configuration software to display the total power and impedance of multiple parallel­wired loudspeakers, further reducing the time and eort required to match complete
loudspea ker systems wi th the appropr iate ALC model s and output chan nel configurat ions.

ALCs reduce complexity and increase overall system value in every installation. Their
compact size, packing either 2 or 4 channels into 1 RU, reduces rack costs and minimizes
space requirements. The industry-leading integrated DSP reduces the need for external
outboard equipment, drastically reducing installation eort and expense. Extremely
high operational eciency greatly reduces power consumption, resulting in the lowest
thermal dissipation ratings in the industry, and minimizes the need for external cooling
devices. Additionally, each channel is capable of directly driving 70V/100V distributed
loudspeakers, low impedance loudspeakers from 2 ohms, or any mixed configuration of
low and high impedance output loads, making ALCs extremely flexible and capable in a
wide range of applications.

In-depth control and monitoring is accomplished via ArmoníaPlus® system manager
soft ware. Ass igning loudspeaker s to ALC output cha nnels is a simple, vis ual, drag and drop
process. Loudspeaker groups and zones can also be created quickly by simply clicking on
the images of the loudspeakers to be grouped together. Tailoring the sound and managing
the system can be done at a remote, decentralized location. All ALC models can also be
trusted in mission critical applications, such as fire alarm systems, thanks to the cleverly
engineered power supply that allows reliable operation even when connected to a UPS.
In addition, the per-channel, user-assignable fault-indicating GPIO connectors on the rear
panel may be integrated with 3rd party monitoring and emergency notification systems.

• Factory-optimized multi-stage

• Power Sharing technology allows

• Community's loudspeaker presets

• Easily configured system control for

• Third-party plug-ins for large venue

• Quickly create and manage loudspeaker

• IEC 60849 compliant monitoring and

• Proven Powersoft sound quality,

APPLICATIONS

• Main systems, Central or Distributed,

• Emergency Notification Systems

• Theatres, Restaurants, and Bars

• Houses of Worship

• Gyms and Fitness Centers

• Sports Fields

• Stadiums

• Lecture Halls

• Amusement Parks

• Shops and Stores

• Convention or Business Centers

• Cruise Ships

needs of Community loudspeakers

loudspeakers on any channel

Community loudspeaker library

loudspeaker processing

loudspeaker protection limiters

asymmetric output loading

allow software to automatically
calculate and display power needs and
headroom for each ALC output channel

small-to-medium venues

control

groups / zones and signal routing

reporting via software and hardware

reliability and eciency

Subwoofers, hi-Z/lo-Z Applications

Amplified Loudspeaker Controllers

2-Channel and 4-Channel Units with DSP and Dante®

CHANNELS

Output Channels

ALC-404D ALC-1604D AL C-32 02D

4 Hi-Z or Lo-Z

(bridgeable per ch. pair)

2 Hi-Z or Lo-Z

(bridgeable
per ch. pair)

Input Channels

AUDIO

Analog

Dante

4
4

ALC-404D ALC-1604D AL C-32 02D

4
4

2
2

Gain

Input Sens @8Ω 26 dB

Input Sens @8Ω 29 dB

Input Sens @8Ω 32 dB

Input Sens @8Ω 35 dB

Signal-to-Noise Ratio
20 Hz- 20 kHz @ 8Ω

Maximum Input Level

Frequency Response

Crosstalk (1 kHz)

Input Impedance

THD+N (from 0.1 W to Full Power)

IMD (from 0.1 W to Full Power)

Slew Rate

Damping Factor

2.48 V

1.76 V

1.24 V

0.88 V

>104 dB(A) >110 dB(A) >111 dB(A)

20 Hz - 20 kHz ±0.5 dB, 1 W @ 8Ω

> 50 V/µs @ 8Ω, input filter bypassed

4.91 V

rms

3.48 V

rms

2.46 V

rms

1.74 V

rms

20 dBu

-70 dB

20 kΩ balanced

< 0.1% (typical < 0.05%)

< 0.05%

> 500 @ 8Ω, 20 Hz - 100 Hz

5.03 V

rms

3.56 V

rms

2.52 V

rms

rms

1.79 V

rms

rms

rms

rms

DSP

AD Converters

DA Converters

Sample Rate Converter

Internal Precision

Latency

Memory/Presets

Delay

Equalizer

Crossover

Limiters

Damping Control

*The power figure is calculated by driving all channels loaded symmetrically; uneven loads allow

higher performance achievement

Community strives to improve its products on a continual basis. Specifications are therefore

subject to change without notice.

ArmoníaPlus® is a registered trademark of Powersoft S.p.A. Tandem™, TruePower™,

DampingControl™, and LiveImpedance™ are trademarked by Powersoft S.p.A.
Dante® is a registered trademark of Audinate Pty Ltd.

24-bit Tandem™ @ 48 kHz

125 dB(A) D ynamic Range - 0.005 %

THD+N

24-bit Tandem™ @ 48 kHz

117 dB(A) D ynamic Range - 0.003 %

THD+N

24-bit @ 44.1 kHz to 192 kHz

140 dB Dy namic Range - 0.0001 % THD+N

32-bit floating point

2.5 ms fixed latency architecture

128 MB (RA M) plus 512 MB fl ash

for presets

2 s (input) + 100 ms (output)

for signal alignment

Raised-cosine, custom FIR,

parametric IIR:

peaking, hi/lo-shelving, all-pass,

band-pass, band-stop, hi/lo-pass

Linear phase (FIR), Butterworth,

Linkwitz-Riley, Bessel:

6 dB/oct to 48 dB/oct (IIR)

TruePower™, RMS voltage,

RMS current, Peak limiter

Active DampingControl™ and

LiveImpedance™ measurement

OUTPUT STAGE*

Max output power per channel @ 8Ω

Max output power per channel @ 4Ω

Max output power per channel @ 2Ω

Max output power @ 4Ω (Bridged)

Max output power @ 8Ω (Bridged)

Max output power @ Hi-Z 100V
distributed line

Max output power @ Hi-Z 70V
distributed line

Max Shared Power (all channels)

Max Unclipped Output Voltage @ 8Ω

Maximum Output Current

POWER & THERMAL

Power (W)

Idle

@ 115 V

1/8
Power
@ 4Ω

Idle

@ 230 V

1/8
Power
@ 4Ω

Current Draw (A

Thermal Loss (BTU/h)

Power (W)

Current Draw (A

Thermal Loss (BTU/h)

Power (W)

Current Draw (A

Thermal Loss (BTU/h)

Power (W)

Current Draw (A

Thermal Loss (BTU/h) 344 818 528

) 0.45 0.47 0.31

rms

) 2.1 7.7 7.0

rms

) 0.25 0.27 0.30

rms

) 1.4 4.3 3.9

rms

Power Supply

Nominal Voltage (± 10%)

Operating Voltage

Ambient Operating Temperature

Ambient Relative Humidity

AC Mains Connector

NETWORKING

Standards Compliance

Suported Topologies

Remote Interface

PHYSICAL

Dimensions H x W x D

Weight

ALC-404D
AL C-160 4D
AL C-320 2D

ALC-404D ALC-1604D AL C-32 02D

400 W 1250 W 1250 W

400 W 1400 W 2400 W

400 W 1600 W 3200 W

800 W 3200 W 6400 W

800 W 2800 W 4800 W

400 W 1600 W 3200 W

400 W 1600 W 3200 W

1200 W 4800 W 6400 W

80 V

33 A

ALC-404D ALC-1604D AL C-32 02D

31.1 31.3 32.5

106 107 111

227 823 780

261 760 613

31.5 31.6 32.8

107 108 112

251 840 755

Univer sal regulated switch mode

(with reduced power below 90 V)

Region-specific power cord provided

ArmoníaPlus® System Manager

Unit Weight

16.2 lbs (7.3 kg)

17.3 lbs (7.8 kg)

17.2 lbs (7.8 kg)

142 V

peak

45 A

peak

with PFC, SRM

100-240 V @ 50-60Hz

60-264 V

0° - 45° C; 32° - 113° F

0-95% (non-condensing)

IEC C20 inlet (20 A max)

Auto-sensing Fast Ethernet

(IEEE 802.3u, 100 Mbit/s)

Star

1.75" x 19.0" x 14.7"

(44 x 483 x 373 mm)

142 V

peak

peak

80 A

Shipping Weight

25 lbs (11.3 kg )
26 lbs (11.8 kg)
25 lbs (11.3 kg )

peak

peak