M 51 TWO-WASPEAKERY PASSIVE DESCRIPTION M 51 is a multipurpose two-way full-range speaker system, suitable in a wide range of installations. The compactness, together with the elegant and neutral design with accurate finishing make M 51 suitable for almost any environment and architectural constraint. Its comfortable sound helps heavily in the near field applications. Available mounting accessories allow you to use the M 51 wall or ceiling mounted, with reference to the several possible applications. The SPL and the level of undistorted sound the M51 can reach are far above any expectation from such a compact solution. The M 51 features high sensitivity typical of the PRO audio cabinets thanks to the use of oversized magnets and an HI-FI sound quality with smooth and wide frequency response performed thanks to the wave-guided titanium dome tweeter. The LICC crossover design includes a protection on high frequency device. FEATURES High Quality 2-way passive loudspeaker 1 x 5.5" woofer, vented 1 x 1" in driver, on 9 x9 CD horn High Power Handling Low Impedance Compensated Crossover', with electronic protection for the driver 8W AES power handling Steel Front Grille with robust double mesh polyester clothing Rotatable RCF front logo Installation points are available on the rear panel, top and bottom All models have a 4-pin EUROBLOCK connector (audio input and parallel link output)
TECHNICAL SPECIFICATIONS Acoustical specifications Frequency Response (-1dB): 8 Hz 2 Hz Max SPL @ 1m: 114 db Horizontal coverage angle: 9 Vertical coverage angle: 9 Directivity index Q: 1 System Sensitivity: 89 db Power section Nominal Impedance (ohm): 8 ohm Power Handling: 8 W RMS Peak Power Handling: 32 W PEAK Recommended Amplifier: 16 W Protections: PTC Crossover Frequencies: 19 Hz Transducers Compression Driver: 1.'', 1.'' v.c Nominal Impedance (ohm): 8 ohm Input Power Rating: 1 W AES, 2 W PEAK Sensitivity: 9 db, 1W @ 1m Woofer: 5.5'', 1.2'' v.c Nominal Impedance (ohm): 8 ohm Input Power Rating: 8 W AES, 16 W PEAK Sensitivity: 87 db, 1W @ 1m Input/Output section Input connectors: Euroblock Output connectors: Euroblock Standard compliance CE marking: Yes Physical specifications Cabinet/Case Material: MDF Hardware: Grille: Color: 6 x M6, 2 M1 Steel with robust double mesh polyester clothing Black Size Height: 33 mm / 11.93 inches Width: 175 mm / 6.89 inches Depth: 185 mm / 7.28 inches Weight: 4.99 kg / 11 lbs Shipping informations Package Height: 394 mm / 15.51 inches Package Width: 257 mm / 1.12 inches Package Depth: 247 mm / 9.72 inches Package Weight: 5.7 kg / 12.57 lbs RCF products are continually improved. All specifications are therefore subject to change without notice.
PART NUMBER 134123 M 51 W White EAN 824531193 1342 M 51 Black EAN 824537522 RCF products are continually improved. All specifications are therefore subject to change without notice.
11 Response 1W/1m 316 Impedance db SPL 9 8 Ohms 1 7 6 2 1 36 Beamwidth vs. Frequency Directivity Index and Q 2 Coverage Angle (Deg.) 33 3 27 24 21 18 15 12 9 6 3 Horizontal Beamwidth (1/3 Octave) Vertical Beamwidth (1/3 Octave) Total Q 1 18 16 14 12 1 8 6 4 2 Directivity index Di, db 1 5 Normalized Horizontal off-axis Response 5 Normalized Vertical off-axis Response. Above the box -5-5 Attenuation in db -1-15 Attenuation in db -1-15 -2-25 Horizontal ±1 degrees Horizontal ±2 degrees Horizontal ±3 degrees Horizontal ±4 degrees Horizontal ±5 degrees Horizontal ±6 degrees -2-25 Vertical +1 degrees Vertical +2 degrees Vertical +3 degrees Vertical +4 degrees Vertical +5 degrees Vertical +6 degrees -3-3 5 Normalized Vertical off-axis Response. Below the box Attenuation in db -5-1 -15-2 -25 Vertical -1 degrees Vertical -2 degrees Vertical -3 degrees Vertical -4 degrees Vertical -5 degrees Vertical -6 degrees -3 M51
33 16 125 3 33 315 25 3 2 3 6 3 6 27 9 27 9-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6 24 12 24 12 21 15 21 15 18 18 33 63 5 3 4 33 125 3 8 3 6 3 6 27 9 27 9-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6 24 12 24 12 21 15 21 15 18 18 33 25 2 3 16 33 5 4 3 315 3 6 3 6 27 9 27 9-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6 24 12 24 12 21 15 21 15 18 18 33 8 3 63 33 Horizontal One Octave Polars 3 3 6 3 6 27 9 27 9-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6 24 12 24 12 21 18 15 21 18 15 M51
12 9 16 125 6 12 9 315 25 6 2 15 3 15 3 18 18-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6 21 33 21 33 24 3 24 3 27 27 12 9 63 5 6 4 12 9 125 6 8 15 3 15 3 18 18-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6 21 33 21 33 24 3 24 3 27 27 12 9 25 2 6 16 12 9 5 4 6 315 15 3 15 3 18 18-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6 21 33 21 33 24 3 24 3 27 27 12 9 8 6 63 12 9 Vertical One Octave Polars 6 15 3 15 3 18 18-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6-6 -12-18 -24-3 -36-36 -3-24 -18-12 -6 21 33 21 33 24 27 3 24 27 3 M51