technical specifications QRP20/120
general•Point-source column with high-Q directivity forincreased projection control•

RBN401 pro-ribbon HF driver with exceptional
intelligibility and “throw”•

1:1 non-compressed linear sound reproduction,with up to 90% less distortion•

Fully symmetric and coherent horizontal andvertical pattern control•

Woofers with Active Coil™ technology for further
reduced LMF distortion•

SIS™ pre-wired for very high system damping
and further reduced distortion

description
The QRP20/120 is a 2-way column loudspeaker to be
used as vertical sound system, for both permanent andportable applications. Its slim design packs a perfectly
natural, dynamic sound reproduction with superb
intelligibility, coverage and throw.
It is specifically designed for applications whereultimate fidelity response needs to be projected withvery wide horizontal and narrow vertical coverage,
ideal in acoustically challenging environments, orapplications where intelligibility-over-distance isrequired.
Loaded with the RBN401 4” pro-ribbon driver on a
“Morpher” lens, the system offers an exceptional, SPLindependent throw-efficiency and projection control,
due to the pro-ribbon’s all-natural cylindrical(isophasic) wavefront.

The patented (120-degrees) horizontal dispersion
offers a very wide and consistent audience coverage
up to the highest frequencies.
Its fast impulse response, “compression-less” principle
and unusual high peak power handling (800W @200ms) cater for a perfect intelligibility from the lowest
to the highest SPL with a 1:15 dynamic range, while
offering a maximum “gain-before-feedback”.
The RBN401 driver is mounted in a D'Appolito speakerconfiguration with four woofers in a sealed cabinet.
The custom-design 5” woofers feature Active Coil™
technology for extremely low-distortion LF
reproduction, a perfect match with the MHF pro-ribbon
technology.

220822 • Due to Alcons Audio’s continuous R&D, all specifications are subject to change without prior notice.

evolutionary audio solutions™

The frequency response roll-off enables an excellent
partnering with an additional subwoofer.
The system brings the unsurpassed clear, dynamic andultra-low distortion Alcons signature sound in a very
slim and unobtrusive package; The M10 mounting
points on top and bottom and the M6 universal
mounting bracket pattern on the back, together with theoptional ACO™ color scheme provides for aninconspicuous, low-profile presence in any application.

The QRP20 is powered and controlled by the ALC
amplified loudspeaker controller; Through theintegrated VHIR™ processing, audiophile amplifier
stages and Signal Integrity Sensing™ feedback circuit,
the ALC offers QRP20-specific drive processing,delivering absolute maximum sound quality withincreased headroom and utmost operation reliability
and flexibility.
The QRP20 is available in two versions with 90-degree(QRP20/90) and 120-degree (QRP20/120) horizontal
dispersion.

technical specifications QRP20/120
dimensional drawing

technical specifications
Frequency response

72 Hz - 20.000 Hz(+/- 3 dB)

64 Hz -(+/- 10 dB)

Sensitivity nominal

97 dB (200 Hz - 10 kHz)

Nominal impedance

4 ohmsRecommended drive

Sentinel3 min.

Nominal SPL peak

126 dB (Sentinel3 200 Hz - 10 kHz)131 dB (Sentinel10 200 Hz - 10 kHz)Dispersion H x V

120° x 15° (@20kHz)

physical specifications
System

2-way, full-range

Filtering

passive

Drivers LF

4x AMB5NDAIC-16 5”, sealed

Drivers HF

1x RBN401 4” pro-ribbon driverConnectors

2x Speakon NL4 input/link

Physical dimensions

mminches

Height742

29.2

Width150

5.9

Depth150

5.9

Weight (approx.)kglb

1226.5Warranty

A:Alcons Audio
De Corantijn 101689 AP, ZWAAGThe Netherlands

E:
W:
T:

info@alconsaudio.com
www.alconsaudio.com+31 (0)229 28 30 90

220922 • Due to Alcons Audio’s continuous R&D, all specifications are subject to change without prior notice.

6 years limited

evolutionary audio solutions™