| The R4-IV is a full range, three-way loudspeaker system that remains one of Clair Brothers most popular cabinets. The R4-IV incorporates an innovative Directional Baffle Midrange System (DBM™) that creates high intelligibility. The R4-IV has been engineered for optimal individual performance or in horizontal or vertical arrays. This touring cabinet is also ideal as an installed system for clubs, proscenium theaters, auditoriums, and amphitheaters. A single 18” transducer produces solid low end reproduction. High frequency is provided by a 2” compression driver attached to a 90ºH x 40ºV (or 60ºH x 40ºV) constant-directivity horn, which may be rotated for several coverage options. An independently loaded midrange transducer is augmented through the DBM™ system. |
The DBM™ is not a conventional horn, but an extension of the conical shape of the twelveinch midrange transducer. The R4-IV is thus able to achieve high intelligibility (“Q”) withoutthe harshness inherent in traditional horn-loaded systems. With the introduction of this system, the R4-IV delivers improved overall response, requiring no additional low frequency reinforcement. The result is smooth, transparent reproduction of speech and music program material. Constructed of Baltic birch, the cabinet stands up to the requirements of any professional audio application. Notched extruded aluminum corners provide rigging and dolly caster support as well as added protection against corner abrasions. |
AUDIO SPECIFICATIONS
| Loudspeaker Type |
Three-Way Active |
|
| Frequency Response (+/- 2dB) |
Single Cabinet |
40Hz–18kHz |
| Recommended Power Amplifier |
1200–1800W @ 8 Ohms |
|
| Sensitivity(1Watt @ 1 Meter) |
LF |
99 dB SPL 103 dB SPL 113 dB SPL |
| Maximum Output | Cont. Peak |
131 dB SPL |
| Drivers |
LF MF |
(1) 18 in. (457.2mm) (1) 12 in. (304.8mm) (1) 2 in. (50.8mm) |
| Nominal Impedance |
LF MF HF |
8 Ohms |
|
Power Handling
|
LF MF HF |
800W 300W 150W |
|
Dispersion
|
Nominal -6dB |
90° H x 40° V (Rotatable) 60° H x 40° V (Rotatable) |
| Input Connection |
|
(1) EP-8 Connector |
MECHANICAL SPECIFICATIONS
| Enclosure |
Shell Finish |
18mm, 13-Ply Baltic Birch |
| Grille | Powder-Coated Steel, Foam Backed | |
| Dimensions | Height Width Depth |
47.57 in. (1208.3mm) 23.35 in. (593.0mm) 22.28 in. (565.9mm) |
| Weight | 247 lbs. (112.0kg) | |
| Shipping Weight | 259 lbs. (117.5kg) | |
| Rigging | – | – |
