Product Description
AUDISON - LRx 4.1k
AUDISON LRx 4.1k and LRx 4.5 are four-channel amplifiers that can be configured to operate in four, three or two channel modes. They are designed as a complete single amplifier solution, or can be used in complex multiamplified, multichannel designs.LRx 4.1k was designed to power a front speaker + subwoofer system or an active 2-way component system with demanding loads.
Controlling the elements
AMP activates several functions wich monitor and protect the installation: power supply system, speakers, wiring and source. The audio signal dynamics and original quality are never affected,while the amplifier supplies as much power as possible
ART - Automatic Remote Turn On-Off
If you connect the cables of a factory speaker to SPK On socket, you will automatically turn on the amplifier and it will repeat the turn-on signal, wich will be supplied to other electronic devices in the system.
INTERNAL
AMP - Amplifier Management Processor
AMP is a microprocessor that constantly analyses voltage and current, signal and temperature, to supply the maximum and the best power in every condition and moment. Music best, possible reproduction: this is the goal to achieve.
Modular Soundproof Construction
The amplifier is designed in a modular way. Its motherboard has oversized paths, wich are routed not to interfere with the audio signal, and only houses power and service circuits.
Beyond thermal limits
A fan is in the heart of the circuit. Its rotation speed is electronically controlled by AMP, it takes air from the outside and pushes it where it is more needed. SAF - Smart Air Flow insures maximum thermal capacity and, thus, power.
Power supply stage is PWR stabilised
Thanks to its high ability of supplying current it is possible to easily drive even the most difficult loads, with valued tonal accuracy and first-grade acoustics.
Connection versatility
ECI permits to widen every factory system without limits. Besides being interchangeable, ECI modules are reversible and allow both the standard connection or the one with the contacts facing the amplifier inside.
The mystery of disappearing
ECI reversibility locates the signal connectors in an invisible place. Two special hollows in the bottom allow the signal cables routing; cables can be fixed through clips.
ART - Automatic Remote Turn On-Off
If you connect the cables of a factory speaker to SPK On socket, you will automatically turn on the amplifier and it will repeat the turn-on signal, wich will be supplied to other electronic devices in the system.
EXTERNAL
Controlling the elements
AMP activates several functions wich monitor and protect the installation: power supply system, speakers, wiring and source. The audio signal dynamics and original quality are never affected, while the amplifier supplies as much power as possible
Easy Set Up
Practical examples guide the creation of a system. Choose a system, you will be able to build it through the use of pre-drilled cards and the help of detailed owner's manuals. Everybody can configure the most difficult system without mistakes.
ECI - Easy Common Interface
Two modules to meet any demands of connection to any source. L(Low) or H(High) indicates if the main signal is a low or high level one. ECI-H automatically activates ART wich turns on and off the amplifier according to the source, without the need of a remote signal and can also generate a preamplified signal on the RCA outputs from the input high level one.
HCI - Hidden Cable Installation
The installation of an amplifier with protected, hidden cables is no longer a dream because LRx was designed for this, too. The amplifier fixing holes are inside its outline and covered when installation is over.
| Power Supply | |
| Power supply voltage | 11 ÷ 15 VDC |
| Idling current | 1.3 A |
| Idling current when off | 0.02 mA |
|
Consumption @ 14.4 VDC (MAx Musical Power): |
36 A |
| Amplifier stage | |
| Distorsion - THD (1 kHz @ 4Ω) | 0.04% |
| Bandwidth (-3 dB) | 4 ÷ 80k Hz |
| S/NRatio (A weighted@1V) | 100 dB |
| Dampingfactor (1kHz@4Ω)A,BCh | 120 |
| Input sensitivity | 0.3 ÷ 5 V |
| Input impedance | 15k Ω |
| Speaker-In sensitivity | 1.4 ÷ 24 V |
| Speaker-In impedance | 5 kΩ |
| Load impedance MIN | 2 Ω |
| NOMINAL OUTPUT POWER (RMS) | |
| NP @ 12VDC, THD 0.3% | 70W x 4 (4Ω) |
| OUTPUT POWER (RMS) @ 14.4 VDC, THD 1% | |
| • 4 Ch | 130W x 2 (4Ω) + 140W x 2 (4Ω) |
| • 4 Ch | 230W x 2 (2Ω) + 250W x 2 (2Ω) |
| • 4 Ch | 130W x 2 (4Ω) + 250W x 2 (2Ω) |
| • 4 Ch | 130W x 2 (4Ω) + 400W x 2 (1Ω) |
| • 4 Ch | 200W x 2 (2Ω) + 350W x 2 (1Ω) |
| • 3 Ch | 130W x 2 (4Ω) + 500W x 1 (4Ω) |
| • 3 Ch | 130W x 2 (4Ω) + 800W x 1 (2Ω) |
| • 3 Ch | 230W x 2 (2Ω) + 500W x 1 (4Ω) |
| • 3 Ch | 200W x 2 (2Ω) + 700W x 1 (2Ω) |
| CEA 2006-A RATINGS | |
| Output power @ 4 Ω, 1% THD+N,14.4 V | 130 W x 2 + 140W x 2 |
| S/N ratio (ref. 1W output) | 130 W Channels: 80 dBA |
| 140 W Channels: 80 dBA | |
| Inputs/Outputs | |
| In A ch | Pre/Speaker |
| In B ch | Pre/Speaker |
| Out Bypass | Pre/Speaker |
| Filters | |
| In A ch | Bypass / Hi-pass 50 ÷ 5k Hz @ 12 dB/Oct. |
| In B ch | Bypass / Hi-pass / Lo-pass 50 ÷ 5k Hz @ 12 / 24(mono) dB/Oct |
| Subsonic | OFF/20/30 Hz @ 24 dB/Oct. Active with B ch. @ 24 L+R |
| Other functions | |
| Remote In | 7 ÷15 VDC - 1 mA |
| Remote Out | 12 VDC - 50 mA |
| Speaker On | Amp ON with amplified signal |
| Fuse (AFS) | 100 A |
| REMOTE SUB VOLUME | Active with B ch /Lo-pass 24dB L+R |
| Adjustment | +5 ÷ -5dB |
| Size | |
| Max size (mm) | 198 x 538 x 56 |
| Weight kg/lb: | 5,400 / 11.9 lb |
