dBTechnologies IA504R Professional Amplifier User Manual

: June 9, 2024
: dBTechnologies

dBTechnologies IA504R Professional Amplifier

dBTechnologies-IA504R-Professional-Amplifier-PRODUCT

Product Information

The IA504R is a digital amplifier designed for passive speakers with integrated RDNet connections for remote control and configuration using AURORA NET software. It features a powerful amplifier section capable of handling up to 500 W (RMS power) in 4 channels and controlled by a DSP that can perform a detailed customization of the output of the speakers. The mechanical design allows easy, accurate, and quick installation in half, 1U rack, or flat surface thanks to the optional brackets. The user can also load presets for dBTechnologies passive speakers using AURORA NET software to provide an excellent listening experience.

Product Specifications

4 channels digital amplifier – half rack
20 – 20000 Hz frequency response
31 dB gain
103 dB(A) dynamic range
+4 dBu maximum input level
100 dB input impedance
+18 dBu maximum input level
20 kOhm input impedance
Class-D Full-range SMPS power supply
Fan forced (front to back) cooling
100-240V~ (50-60Hz) operating range
Dual Active Peak, RMS, Thermal limiter controller
32 bit DSP controller
24 bit/48 kHz AD/DA converter
Dimensions: 222x44x256 mm (8.7×1.7×10.1 in)
Weight: 1.82 Kg (4.01 lbs.)

Package Contents

IA504R digital amplifier
RMK-1 rack and surface mount kit

Product Usage Instructions

The IA504R amplifier is controlled by a powerful DSP, and all the connections, except USB Data control, are in the rear amplifier control panel. To use the IA504R amplifier, follow the steps below:

Connect your passive speakers to the power outputs in the rear panel.
Connect your audio source to the analog audio inputs in the rear panel.
If you want to use the RDNet connections, connect the Data In/Data Out ports to your RDNet network.
If you want to use GPIO/Standby ports, connect them to your devices.
Connect the Full-range Mains Input to the power source.
Turn on the amplifier using the Power/Standby button in the front panel.
If you want to reset the amplifier, press the Reset button in the front panel.
If you want to control and configure the amplifier using AURORA NET software, connect your computer to the USB Data Control port in the front panel.
The Remote Active LED indicates when the amplifier is under remote control.
The Bridge Mode LED indicates when the amplifier is in bridge mode.
The Signal LED indicates when a signal is present.
The Peak Fault LED indicates when a peak fault occurs.

Note that the IA504R has different power supply specifications depending on the operating conditions. It is recommended to consider them the minimum sizing values for any type of configuration.

MAIN FEATURES

4 channels digital amplifier for passive speakers
Powerful DSP
Compact half rack size
Quick installation
AURORA Net control
Multiple configuration options

DESCRIPTION

IA504R is the new dBTechnologies professional amplifier for passive speakers with integrated RDNet connections for a remote in-depth control and configuration using AURORA NET software. The device is equipped with a powerful amplifier section, capable of handling up to 500 W (RMS power) in 4 channels and controlled by a DSP, which can perform a detailed customization of the output of the speakers. The mechanical design allows an easy, accurate and quick installation in half, 1U rack or flat surface thanks to the optional brackets. In addition, the user can load presets for dBTechnologies passive speakers using AURORA NET software to provide an excellent listening experience.

PACKAGE CONTENTS

The box contains:

n.1 IA504R amplifier
n.1 mains cable
n.3 Euroblock 3.81mm connectors
n.2 Euroblock 5.08mm connectors

ACCESSORIES

DIMENSIONS

dBTechnologies-IA504R-Professional-Amplifier-FIG
2

SPECIFICATIONS

Amplifier Type	4 channels digital amplifier – half rack
Frequency Response [±0.5dB]	20 – 20000 Hz
Amplifier Gain	31 dB
Signal to Noise Ratio	>103 dB(A)
Input Sensitivity	+4 dBu
Crosstalk	100 dB
Maximum Input Level	+18 dBu
Input Impedance	20 kOhm
Amplifier	Class-D
Power Supply	Full-range SMPS
Cooling	Fan forced (front to back)
Operating Range	100-240V~ (50-60Hz)
RMS Out Power single channel	280 W @ 4 Ω, 245 W @ 8 Ω

135 W @ 16 Ω, 280 W @ 8 Ω (bridge)

250 W @ 70V, 240 W @ 100V

Peak Power single channel| 425 W @ 4 Ω, 245 W @ 8 Ω,

135 W @ 16 Ω, 619 W @ 8 Ω (bridge)

RMS Out Power 4 channels| 70 W @ 4 Ω, 70 W @ 8 Ω,

70 W @ 16 Ω, 140 W @ 8 Ω (bridge),

140 W @ 70V, 140 W @ 100V

Peak Power 4 channels| 225 W @ 4 Ω, 180 W @ 8 Ω,

125 W @ 16 Ω, 440 W @ 8 Ω (bridge)

I/O AND CONTROL PANEL

The amplifier is controlled by a powerful DSP. All the connections, except USB Data control, are in the rear amplifier control panel.

Remote Active LED
Power/Standby LED
Reset button
Bridge Mode LED
Signal LED
USB Data Control
Peak Fault LED
Analog audio Inputs
GPIO/Standby ports
RDNet Data In/Data Out
Power Outputs
Full-range Mains Input

FRONT PANEL

REAR PANEL

POWER SUPPLY SPECIFICATIONS (POWER ABSORPTION)

*Draw at 1/8 of full power in average use conditions ():** 0.36 A (220-240V~) – 0.66 A (100-120V~)
Draw at 1/3 of full power in average use conditions ():** 0.7 A (220-240V~) – 1.4 A (100-120V~)
Power absorption with speaker turned on without signal (idle): 0,16 A (220-240V~) – 0.25 A (100-120V~)

INSTALLER NOTES: The values refer to 1/8 of full power, in average operating conditions (music program with infrequent or no clipping). It is recommended to consider them the minimum sizing values, for any type of configuration.
INSTALLER NOTES: The values refer to 1/3 of full power, in heavy operating conditions (music program with frequent clipping or activation of the limiter. We recommend sizing according to these values in case of professional installations and tours.

SETTINGS

INPUT SETTINGS

Balanced analog signal
Connect the positive and negative pole, and the ground of the input signal to the corresponding input on the amplifier.

Unbalanced analog signal
Connect the positive pole and the ground of the input signal to the corresponding input on the amplifier.

OUTPUT SETTINGS

Stereo setup
Connecting a pair of speakers in stereo mode. Recall the correct setup from the software AURORA NET in the Setup => Output section. The minimum impedance must be 4 Ohms

Bridge setup
Connecting a speaker in bridge mode. Recall the correct setup from the software AURORA NET in the Setup => Output section. The minimum impedance must be 8 Ohms.

70/100V setup
Connecting speakers in 70/100V mode. Recall the correct setup from the software AURORA NET in the Setup => Output section.

AURORA NET SETTINGS

For a quick setup connect a PC/Mac to the amplifier using a USB cable, download and open AURORA NET software* and click on Setup section (Fig.1) and then on Configure button. From the Output Settings page that will open up (Fig.2), the user can adjust the output mode between different choices. Click on the Load button to load presets for dBTechnologies passive speakers (Fig.3).

*please be sure to download the latest version of the software. Check it on www.dbtechnologies.com dBTechnologies-IA504R-Professional-Amplifier-FIG 10

INSTALLATION

IA504R can be installed in different configurations.
For a quick installation, on the front of the amplifier (A) the user can find mechanical fixing point for rack mounting. On each side (B) of the amplifier the user can find mechanical fixing point for wall/flat surface mounting . dBTechnologies-IA504R-Professional-Amplifier-FIG 11

RACK MOUNT

SURFACE MOUNT

IMPORTANT NOTES AND WARNINGS

EMI CLASSIFICATION
According to the standards EN 55032 and 55035 this is a class B equipment, designed and suitable to operate in residential environments.

WARNINGS!
Make sure that the device is securely installed in a stable position to avoid any injuries or damages to persons or properties.
Before installing the device check all the components for damages, deformations, missing or damaged parts that may compromise safety during installation. Follow the instructions contained in this quick start user manual and on the complete user manual to properly install the device. It’s suggested to keep enough distance from other devices to allow the right cooling.
The warnings in this manual must be observed in conjunction with the “USER MANUAL – Section 2”.
Features, specification and appearance of products are subject to change without notice. dBTechnologies reserves the right to make changes or improvements in design or manufacturing without assuming any obligation to change or improve products previously manufactured.
The external wiring connected to speaker output terminals requires installation by qualified personnel only. Once the equipment is installed, prevent access to the connectors to unqualified personnel. Only use the accessories and configurations described in this manual, and proceed in accordance with the instructions given in the manuals for the accessories.
Only use the power cable provided.
The USB SERVICE DATA connection is to be used exclusively for updating the product’s firmware; do not connect any other USB device to the unit to avoid the risk of damage and malfunction.
Check periodically the integrity and the functionality of the accessories and the technical equipments for a safe installation.
User should never apply a load that exceeds the working load limits of any rigging components or equipment here presented. Design, calculation, installation, testing and maintanance of suspension and stack systems for audio equipment must be performed only by qualified and authorized personnel. AEB Industriale s.r.l. denies any and all responsibility for improper installations, in the absence of safety requirements.

FCC

FCC CLASS B STATEMENT ACCORDING TO TITLE 47, PART 15, SUBPART B, §15.105
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

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A.E.B. Industriale Srl
Via Brodolini, 8
Località Crespellano
40053 VALSAMOGGIA
BOLOGNA (ITALIA)
Tel. +39 051 969870
Fax +39 051 969725
www.dbtechnologies.com
info@dbtechnologies-aeb.com