- RBN1801 pro-ribbon HF drivers with exceptional intelligibility and high SPL output
- All Neodymium drivers for excellent performance-to-weight ratio
- Modular scalable array system, with multiple units flown or stacked above each other
- SIS pre-wired for very high damping and further reduced distortion (with ALC)
- Extended headroom/SPL and protection in combination with SDP modules (with ALC)
- Passive filtering for easy operation and economical powering
Description
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The QR18 is a modular 2-way column loudspeaker to be used as vertical array, either in stacked or flown configuration, for both permanent and (limited) portable installations. It combines the ease-of-use handling of a conventional system, with the throw of a line-array system.
Featuring a single RBN1801 pro-ribbon driver (patents pending), the QR18 offers Real-90 horizontal dispersion with seamless coverage; Its transient response and high peak power handling enable an amazing intelligibility and throw. The 91% active frontal radiation, in combination with the ribbon’s all-natural cylindrical flat (Isophasic) wavefront, brings maximum “gain-before-feedback” up to directly in front of / under the cabinet. The Signal Integrity Sensing™ pre-wiring ensures complete cable/connector compensation between the QR18 and ALC. In this way, the ALC can be loaded down to 2 ohms, without any sacrifice on response quality (4 units QR18 parallel on one channel loads 3 ohms). The system includes dedicated filtering, but system equalizing is done remotely (electronically) fully utilizing the individual speaker components’ power capacity; In combination with the unusual high peak power handling (3000W/200mS), this results in a virtually infinite headroom SPL from 1kHz. up. Typical applications for the QR-systems include main system for theatre, PA system in “acoustically challenging rooms”, as well as high power side-fill stage monitoring. For full system performance, the QR18 needs to be driven by an ALC controller-amplifier. Driven by the ALC, the QR18 delivers maximum sound quality with inaudible (power and excursion) protection (SDP circuit). |
Technical Specifications
| Frequency Response | |
| +/- 3 dB | 74 Hz – 20.000 Hz |
| +/- 10 dB | 53 Hz – |
| Sensitivity (SPL 1W/M) | 97 dB |
| Nominal Impedance | 12 ohms |
| Maximum RMS power | 390 W |
| Maximum peak power | 3000 W – from 1 kHz up |
| SPL program/peak (nom.) | 123dB / 144dB |
| Dispersion H x V (array) | 90° x depending on array length |
Physical Specifications
| System | 2-way, full range |
| Filtering | passive |
| Drivers LF | 3 x AND65/4 neodymium 6.5″, vented |
| Driver HF | 1 x RBN1801 – 18″ pro ribbon driver |
| Cross-over frequency | 1000 Hz |
| Connectors | 2 x Speakon NL4 input / link |
| Physical dimensions | mm |
| Height | 506 |
| Width | 367 |
| Depth | 237 |
| Weight (approx.) | 20kg |
| Warranty | 6 years limited |