RL 933K

RL933K V1
RL933K1 V1
Abg-Verstaerker-Studio-901
Abg-Verstaerker-Highend-901
The RL933K has been designed for both the professional user at medium-size audio, video and film studios and for the discerning music enthusiast.

By the cardioid radiation characteristics within the frequency range from 35 through 250 Hz the reflections on the back walls of listening rooms can be minimised. In addition the transfer characteristic can be matched to the acoustical conditions of the reproduction room as well as to the set-up situation by an integrated room matching filter.

The total directivity index of the monitor was optimised for middle through larger listening distances between two and three metres. As the bass system a very linear 260 mm (10’’) long throw driver in a cardioid cabinet is employed, delivering excellent impulse fidelity. The 125 mm (5’’) cone is mounted together with the 25 mm (1’’) dome tweeter coaxially in front of the bass system allowing a precise steering of the focal perspective. As a result a realistic and steady spatial performance of the sound image around the listening position is achieved, with high homogeneity and smallest possible colouration. By the great membrane area the RL933K is in the highest degree level proof while at the same time it has the lowest distortions. Therefore the RL933K is a precision studio tool allowing fatigue free working for hours.

The three-channel MOSFET power amplifier with electronic crossover is integrated within the back wall of the cabinet and is hinged for service purposes. An intermittent LED lighting signals when the overload limit is reached. After crossing of the maximum level the output level will be reduced by 20 dB to avoid any overloading of the components.

The RL933K1 is a more compact cabinet variant of the RL933K, that is employed when not enough room is available. Be it a video wall or an outside broadcasting van. As an alternative to the standardly provided MOSFET amplifier in an upright standing enclosure the 19’’ compatible Class D amplifier RL-Amplifier is also available.

A variety of special stands and racks is available as accessories. According fixing elements have been integrated into the loudspeaker cabinet.
 General
Active 3-way coaxial loudspeaker for listening distances between 2 and 3 m (6.6 ft and 9.9 ft)
Maximum SPL
from 100 Hz ... 6 kHz

112 ... 121 dB / r = 1 m (3.3 ft)
Bandwidth
35 Hz ... 20 kHz ± 3 dB
Calibration:
Acoustic output level / PE = - 14 dBu

89 dB / r = 1 m (3.3 ft)
Directivity Index
from 100 Hz ... 10 kHz

Increasing from 3 to 10 dB
Inherent noise sound level
≤ 7 dB (A) / r = 1 m (3.3 ft)
Total harmonic distortion
measured at 96 dB / r = 1 m (3.3 ft)
from 100 Hz ... 10 kHz


≤ - 40 dB
Nominal input level
+ 6 dBu adjustable
Input impedance
≥ 10 kOhm RC balanced
Electronic crossover frequencies
700 Hz and 3.2 kHz
Nominal output power amplifier
    LF
    MF
    HF

180 W / 4 Ohm
100 W / 4 Ohm
100 W / 4 Ohm
Input connector
XLR 3F
Loudspeaker systems
    Woofer
    Mid-range unit
    Tweeter

260 mm (10") cone
125 mm (5") cone
25 mm (1") dome
Operation and clipping indicator
LED on front side
Power requirements
230 V ~ ± 10 %; 50 ... 60 Hz
115 V ~ ± 10 %; 50 ... 60 Hz (optional)
100 V ~ ± 10 %; 50 ... 60 Hz (optional)
Power consumption
Max. 300 VA at full load
Mains connection
IEC power connector
Temperature requirements
    for use
    for storage
    humidity

+ 15°C ... + 35°C
- 25°C ... + 45°C
45 ... 75 %
RL 933K (Amplifier in loudspeaker cabinet)
Dimensions (h x w x d)
477 x 350 x 310 (18.8 x 13.8 x 12.2 inch)
Weight
30 kg (66 lbs)
Design of the cabinet
MDF wood in ash black veneered; optional other veneers or colours
with holding device; optional without holding device
with handles; optional without handles
RL 933K1 (Amplifier in separate enlosure)
Connection cable
Loudspeaker - Amplifier enclosure
Speakon NL8
Standard length 3 m (9.9 ft); optional other lengths
Dimensions (h x w x d)
    Loudspeaker
    Standard amplifier enclosure
    Highend amplifier enclosure

350 x 350 x 305 (13.8 x 13.8 x 12 inch)
475 x 279 x 120 (18.7 x 11 x 4.7 inch) without base plate
495 x 320 x 260 (19.5 x 12.6 x 10.2 inch) with base plate
Weight
    Loudspeaker
    Standard amplifier enclosure
    Highend amplifier enclosure

17 kg (37 lbs)
11 kg (24 lbs)
12 kg (26 lbs)
Design of the cabinet
    Loudspeaker
    
 
    Standard amplifier enclosure
 
    Highend amplifier enclosure

MDF wood in ash black veneered; optional other veneers or colours
with holding device; optional without holding device
MDF wood with scratch proof structure coating black RAL9005; optional other colours
MDF wood in ash black veneered; optional other veneers or colours
RL 933K Free field frequency response
RL 933K Total harmonic distortions
RL 933K Directional characteristic
RL 933K Gabelständer
Floor bracket stand
 
Loudspeaker rotable mounted
Deliverable heights (Top edge loudspeaker): 1285 mm (50.6 in), 1400 mm (55.1 in), 1540 mm (60.6 in) and 1750 mm (68.9 in)
 
Base panel (W x D): 470 mm x 450 mm (18.5 in x 17.7 in)
 
Base panel and stabilisation panel veneered
 
Racks black powder-coated
RL 933K Standfuss
Pedestal
 
Integrated cable duct in the pedestal
 
Height (Top edge loudspeaker): approx. 1125 mm (44.3 in)
 
Base panel (W x D): 400 mm x 370 mm (15.7 in x 14.6 in)
 
Pedestal veneered
Brochure and Dokumentation
 
Brochure
Instructions for installation and use
Installation instructions for floor bracket stand models RL 901K - RL 903
Technical Drawings
 
Technical drawing to the loudspeaker
Technical drawing to the loudspeaker
Technical drawing to the stand-alone amplifier
Technical drawing to the floor bracket stand with details of the standard heights
Technical drawing to the pedestal