MX3068
Cinema Screen Speaker
Passive three-way screen-channel loudspeaker with an 18-inch woofer and an integrated mid/high horn raising sensitivity, single-amplifier driven. Hall depth ≤ 16 m/23 m1
Behind-screen main channels · Medium to large commercial auditoriums
Features
- 18-inch woofer: 97 dB driver sensitivity, 75.5 mm voice coil, 22.5 mm winding.
- SOVOX ADM™ oil-coated, cloth-edged loose-pressed paper cone balances low moving mass, damping and durability.
- Dedicated 6.5-inch cone midrange supports focused reproduction through the critical dialogue band.
- 2-inch titanium-diaphragm compression driver provides efficient high-frequency reproduction.
- Integrated horn provides 100° × 60° nominal coverage across the principal seating area.
- 500 Hz / 2.8 kHz passive crossovers enable operation from a single amplifier channel at an 8-ohm nominal load.
- 388 mm enclosure depth packages an 18-inch three-way system for behind-screen installation.
Overview
The MX3068 is a passive three-way screen-channel loudspeaker for medium and large commercial cinema auditoria, intended for the L/C/R main channels behind acoustically transparent screens. A single 18-inch low-frequency driver, a dedicated 6.5-inch cone midrange and a 2-inch compression driver share one cabinet, covering 40 Hz–20 kHz (±3 dB, 2π) with usable extension to 28 Hz; an integrated mid/high horn raises sensitivity and provides 100° × 60° nominal coverage.
The 18-inch woofer uses a SOVOX ADM™ oil-coated, cloth-edged loose-pressed paper cone with a 75.5 mm voice coil and 22.5 mm winding. A dedicated 6.5-inch cone driver carries the dialogue band, and the 2-inch compression driver combines a 44.4 mm CCAW voice coil with a titanium diaphragm. Passive crossovers at 500 Hz and 2.8 kHz allow one amplifier channel to drive the complete three-way system at an 8-ohm nominal load, reducing amplifier channels and wiring. The one-piece bass-reflex enclosure (PVC-laminated MDF with integrated horn) measures 670 × 983 × 388 mm (W × H × D) and weighs 47 kg; its 388 mm depth suits the restricted space behind screens, with screen-frame mounting or guided suspension.
Specifications
| Product Type | Cinema Screen Speaker |
|---|---|
| System Type | 3-Way, Passive |
| Driver Configuration | 18" LF+ 6.5" MF + 2" HF |
| Nominal Impedance | 8Ω |
| Frequency Response (±3 dB @ 2π)2 | 40 Hz–20 kHz |
| Frequency Range (-10 dB @ 2π)2 | 28 Hz–20 kHz |
| AES 100-Hour Power Rating3 | 750W |
| AES 2-Hour Power Rating | 937.5W |
| Program Power4 | 1500W |
| Sensitivity (2π) @1W/1m | 101dB |
| Rated Maximum SPL /1m @ 2π | 129.8dB |
| Calculated Maximum SPL /1m @ 2π5 | 135.8dB |
| Crossover Frequency | 500 Hz 2.8 kHz passive |
| Recommended HPF | 25 Hz, LR24 |
| Coverage Angle (H×V) | 100° × 60° |
| Enclosure Type | Bass-reflex enclosure with built-in horn |
| Enclosure Material / Finish | MDF · PVC laminate |
| Input Connectors | Binding posts |
| Mounting Options | Screen-frame mounting or suspended installation under guidance |
| Dimensions W×H×D (mm) | W670 × H983.2 × D388 mm |
| Net Weight | 47 kg |
Frequency response
Dimensions
- 1Two length values are given: the first is the usable range on continuous power, the second on program power. Program power is a short-term maximum output and is not a level the system can sustain continuously. Target levels follow the SMPTE ST 202 / RP 200 cinema reference level: 85 dB for screen channels plus 20 dB peak headroom, measured at the reference listening position (RLP); hall depth = listening distance x 1.5. Listening distance is derived from free-field distance attenuation. The continuous-power range uses the rated maximum SPL in this table; the program-power range uses the rated value +3 dB (program power being twice the continuous power). The calculated maximum SPL (rated +6 dB, short-term peak) is not used for these figures. Screen loss, power compression, system limiting and room gain are not included - this is a theoretical estimate, not a measured guarantee; on-site verification is recommended. Operating beyond the recommended figure may result in, but is not limited to: dynamic compression, increased distortion, extraneous noise, and in severe cases equipment damage.
- 2Low-frequency response and sensitivity specifications are referenced to half-space (2π) conditions, representative of typical cinema baffle-wall installation. Frequency-response graphs are measured in an anechoic free-field (4π) environment unless otherwise noted. In the low-frequency region the same loudspeaker measures about 6 dB higher under 2π than under 4π (in practice 3–6 dB depending on frequency and baffle conditions); this is a difference of measurement convention, not of performance.
- 3Rating based on an IEC filtered random-noise test signal, band-limited 50 Hz–20 kHz, with a peak-to-average ratio of 6 dB
- 4Recommended amplifier output at the applicable impedance should not exceed the program power, giving an unclipped output waveform while avoiding loudspeaker damage; an amplifier capable of at least the RMS continuous power (AES 100 h) is recommended to realize full loudspeaker performance. The actual amplifier match should be determined by calculation for the listening distance (see note 1).
- 5Calculated maximum SPL is derived from the rated (continuous) power and half-space (2π) sensitivity and is a calculated, not measured, figure; at a 6 dB peak-to-average ratio it exceeds the rated value by 6 dB, representing short-term peak capability rather than a level the system can sustain.
- 6The frequency-response graphs on this page are measured on-axis at 1 W/1 m in an anechoic free-field (4π) environment with 1/6-octave smoothing; the frequency response and sensitivity in the specification table are stated under half-space (2π) conditions. Lower readings in the low-frequency region of the graph therefore reflect the difference in convention rather than a difference in performance. 2π-format curves are available on request.
- 7Passive, single-amplifier-channel enclosure; the hall depth above has been verified at drive-unit level, where the 6.5-inch cone midrange is the limiting unit and sets the recommended figure.
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