Peavey MF1-X User's Manual
Contents
1. 30 78 4 cm W x 16 41 3 cm H x 23 60 6 cm D Net Weight 63 Ibs 28 6 kg DESCRIPTION The MF1 X Mark III is a high frequency constant directivity horn loaded system covering a very wide frequency range with efficiency and authority Optimized as the high frequency section of the Project Two Series its applications include sound reinforcement musical playback and public address The cabinet is constructed of heavy duty 7 ply 4 plywood finished in black splatter paint and then reinforced with steel corners The system is comprised of a 22A compression driver coupled to a CH 1 constant directivity 90 H x 45 V horn with a premium passive crossover to properly interface the MF1 X into a multi way component speaker system The crossover includes a filtered output for the low end of a system and attenuation and equalization for the highs an unattenuated input to the driver is included to allow use with an active crossover system Two 14 female conneciors in parallel are provided for full range input with a full range signal in one female connector for lows out and one 1 4 female connector for biamp highs only FREQUENCY RESPONSE The frequency response of the MF1 X Mark III is measured in an anechoic environment at a distance of 1 meter while using a 2 82 volt logarithmically swept sine input This measurement is useful in determining the accuracy in which the enclosure re2. MF1 X Mark Ill Wide Range High Efficiency High Frequency Horn System SPECIFICATIONS Enclosure MF1 X Mark IIE Frequency Response 1 Meter on Axis Swept Sine Averaged Across Operating Bandwidth in Anechoic Environment 600 Hz 16 kHz Low Frequency Limit 3 dB point 600 Hz Power Handling 150 watts continuous 34 6 volts RMS 300 watts program Sound Pressure Level 1 Watt at 1 Meter Swept Sine Input in Anechoic Environment 112 dB Maximum Sound Pressure Level 131 dB Radiation Angle Measured at 6 dB Point of Polar Response Swept Sine Input Horizontal Plane Vertical Plane 500 10 000 Hz 500 10 000 Hz 110 5 80 40 10 000 16 000 Hz 10 000 16 000 Hz 115 5 45 5 Directivity Factor Q 500 Hz 16 000 Hz Median 8 3 1 9 4 6 Directivity Index Dj 500 16 000 Hz Median 9 2 dB 0 9 dB 4 1 dB Transducer Complement One 22A compression driver loaded onto a CH 1 constant directivity horn with 90 H x 45 V dispersion Crossover Frequency 600 Hz Crossover Type Passive Crossover Slope 12 dB octave high pass 6 dB octave low pass for biamp low out Impedance Nominal 8 ohms Impedance Minimum 5 6ohms Input Connections Two full range female connectors in parallel one low out and one biamp high only female connectors Enclosure Materials and Finish High density 7 ply plywood splatter painted black Dimensions
3. h an input of one watt The nominal impedance shall be 8 ohms The continuous power handling shall be 150 watts maximum program power of 300 watts with a minimum amplifier headroom of 3 dB The nominal radiation geometry shall be 90 degrees in the horizontal plane and 45 in the vertical plane The outside dimensions shall be 30 inches wide by 16 inches high by 23 inches deep The weight shall be 63 lbs The loudspeaker system shall be a Peavey model MF1 X Mark IIi ONE YEAR LIMITED WARRANTY Note For details refer to the warranty statement Copies of this statement may be obtained by contacting Peavey Electronics Corporation P O Box 2898 Meridian Mississippi 39302 2898 ENE Features and specifications subject to change without notice PEAVEY ELECTRONICS CORPORATION 711 A Street Meridian MS 39302 2898 U S A Telephone 601 483 5365 Telex 504115 Fax 484 4278 1989 80301017 2 89 Printed in U S A
4. liable and will have a direct correlation to real world situations 10 dB division 100Hz 200Hz 500 Hz 1 kHz 2kHz 5 kHz 10kHz 20kHz Figure 1 FREQUENCY RESPONSE 80 Q y 25 3 Q 8Q 100 Hz 200 Hz 500Hz 1kHz 2 kHz 5 kHz 10kHz 20kHz Figure 2 IMPEDANCE 320 160 80 40 100 Hz 1000 Hz 10000 Hz Figure 4 BEAMWIDTH VS FREQUENCY 16 100 ae 10 10Q Di 5 1 l il pili 100 Hz 1000 Hz 10000 Hz Figure 5 DIRECTIVITY 5 dB per Division HORIZONTAL KITIR q CEAT L TERZA TT scwwee SIIN S Ls Lt OG SE VERTICAL nae SATANO KRESS LSet T SESSA ren TTS EER Se Figure 3 POLAR PATTERNS MF 1 X MARK III SERIES A Product of Peavey Electronics Corp Meridian Mississippi U S A MAX POWER 300W RMS 150W R IMPEDANCE 8 OHMS CROSSOVER 600 Hz EQUIPPED WITH PEAVEY BLACK WIDOW LOUDSPEAKER i NDER U S PATENT N S 4 421 9 CAUTION THIS SPEAKER SYSTEM CAN PERMANENTLY DAMAGE HI NORMAL BI AMP FULL RANGE Hi REAR PANEL DETAIL ARCHITECTURAL amp ENGINEERING SPECIFICATIONS The loudspeaker system shall have an operating bandwidth of 600 Hz to 16 kHz The output level shall be 112 dB when measured at a distance of one meter wit
5. produces the input signal The combination of the 22A compression driver on the CH 1 horn and the premium crossover results in a flat desirable response as shown in Figure 1 DIRECTIVITY Beamwidth and directivity factors are derived from the 6 dB points from the polar plots see Figure 3 which are measured in a whole space anechoic environment These are specifications which provide a reference to the coverage characteristics of the enclosure These parameters provide insight for proper enclosure placement and installing the chosen environment The blending of the MF1 X Mark III components exhibit a desirable beamwidth and directivity factor Figures 4 and 5 suitable for all high level sound reinforcement applications POWER HANDLING There are many different approaches to power handling ratings the most common being EIA standard RS 426A The derived shape of this test spectrum was an attempt to simulate the spectral content of contemporary music Although it does resemble contemporary music EIA RS 426A does not contain the same levels of very low frequency material found in live music situations Very high levels of low frequency material produce distortion and ultimately device failure The presence of the low frequency material will therefore yield lower device ratings than produced by EIA standard RS 426A Although the Peavey ratings are lower than those produced by the EIA test spectrum they are far more re
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