Electro-Voice M-12G User's Manual
Contents
1. SPECIFICATIONS Frequency Response Measured At 10 Feet on Axis Swept 3 Octave Half space Anechoic Environment see Figure 7 Curve shown has been normalized for 1 Watt 1 Meter 80 6 000 Hz Usable Low Frequency Limit 10 dB down point 80 Hz Half Space Reference Efficiency 4 3 Long Term Average Power Handling Capacity per EIA Standard RS 426A see Power Handling Capacity Section 200 Watts 800 Watts short term Maximum Acoustic Output 8 6 Watts Sound Pressure Level at 1 Meter 1 Watt input Anechoic Environment Band Limited Pink Noise Signal 300 to 2 000 Hz 100 dB Distortion 0 1 Full Power Input Second Harmonic 100 Hz 5 0 1 000 Hz 2 0 10 000 Hz 4 0 Third Harmonic 100 Hz 4 5 1 000 Hz 1 5 10 000 Hz 3 0 Transducer Compliment EVM 12L Series I speaker impedance Nominal 8 ohms Minimum 6 4 ohms Input Connectors Two 1 4 inch phone jacks wired in parallel allows paralleling of multiple speakers Enclosure Materials and Colors Sealed one piece molded black textured polyethylene enclosure Dimensions 41 4 cm 16 3 in high 45 7 cm 18 0 in wide 39 1 cm 15 4 in deep Net Weight 14 3 kg 31 5 Ib Shipping Weight 16 4 kg 36 0 Ib DESCRIPTION The M 12G is a compact stage monitor for guitar The monitor features the EVM 12L Series speaker widely used by guitarists in live performance and studio settings The monitor s small size and floor wedge shape all2. peaks which are many times higher than the average just like actual program The long term average level stresses the speaker thermally heat The instantaneous peaks test mechanical reliability cone and dia phragm excursion Note that the sine wave test signals sometimes used have much less demanding peak value related to their average level In actual use long term average levels exist from several seconds on up but we apply the long term average for several hours adding another extra measure of reliability Specifically the M 12G is designed to withstand the power test described in the revised EIA Standard RS 426A The EIA test spectrum is applied for eight hours To obtain the spectrum the output of a white noise generator white noise is a particular type of random noise with equal energy per band width in Hz is fed to a shaping filter with 6 dB per octave slopes below 40 Hz and above 318 Hz When measured with the usual constant percentage bandwidth analyzer one third octave this shaping filter produces a spectrum whose 3 dB down points are at 100 Hz and 1 200 Hz with a 3 dB per octave slope above 1 200 Hz This shaped signal is sent to the power amplifier with a continuous power set at 200 watts into 7 4 ohms EIA equivalent impedance 38 5 volts true RMS Amplifier clipping sets peaks at 6 dB above the continuous power or 800 watts peak 77 0 volts peak This procedure provides a rigorous test of both thermal a
3. ich vary from state to state Electro Voice Speakers and Speaker Systems are guaranteed against malfunction due to defects in materials or workmanship for a period of five 5 years from the date of original purchase The Limited Warranty does not apply to burned voice coils or malfunc tions such as cone and or coil damage resulting from improperly designed enclo sures Electro Voice active electronics associated with the speaker system are guaranteed for three 3 years from the date of original purchase Additional details are included in the Uniform Limited Warranty statement Service and repair address for this product Electro Voice Inc 600 Cecil Street Buchanan MI 49107 Specifications subject to change without notice ELECTRO VOICE INC 600 Cecil Street Buchanan Michigan 49107 MANUFACTURING PLANTS AT W BUCHANAN MI I NEWPORT TN MM SEVIERVILLE TN E OKLAHOMA CITY OK E GANANOQUE ONT blectro Voice Inc 1991 E Litho in U S A Part Number 531825 150 MARK IV company
4. low or in the individual product data sheet or owner s manual c malfunction resulting from use or operation of the product other than specified in the product data sheet or owner s manual d malfunction resulting from misuse or abuse of the product or e malfunction occurring at any time after repairs have been made to the product by anyone other than Electro Voice or any of its authorized service representatives Obtaining Warranty Service To obtain warranty service a customer must deliver the product prepaid to Electro Voice or any of its authorized service representa tives together with proof of purchase of the product in the form of a bill of sale or receipted invoice A list of authorized service representatives is available from Electro Voice Inc 600 Cecil Street Buchanan MI 49107 616 695 6831 and or Electro Voice West 8234 Doe Avenue Visalia CA 93291 209 651 7777 Incidental and Consequen tial Damages Excluded Product repair or replacement and return to the customer are only remedies provided to the customer Electro Voice shall not be liable for any incidental or consequential damages including without limitation injury to persons or property or loss of use Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you Other Rights This warranty gives you specific legal rights and you may also have other rights wh
5. nch parallel jacks are provided at the rear of the enclosure two monitors may be paralleled on one amplifier channel for a 4 ohm load A pair of M 12G monitors on two amplifier channels provides the player a high level stereo image while using a minimum of floor space EVM 12L SERIES Il The EVM 12L Series Il is a very efficient speaker designed for reinforcement of electric guitar It has become a standard among touring and studio guitarists and is a premium option offered by several manufac turers of guitar amplifiers Power handling capacity is 200 watts long term and 800 watts peak The low mass edgewound voice coil is driven by a 16 pound magnetic structure The speaker features a heavy duty curvilinear cone and fatigue resistant suspension for accurate reproduction and long life The rugged frame is diecast aluminum POWER HANDLING CAPACITY To our Knowledge Electro Voice was the first U S manufacturer to develop and publish a power test closely related to real life conditions First we use a random noise input signal because it contains many frequencies simultaneously just like real voice or instrument program Second our signal contains more energy at extremely high and low frequencies than typical actual program adding an extra measure of reliability Third the test signal includes not only the overall long term average or continuous level which our ears interpret as loudness but also short duration
6. nd mechanical failure modes MICROPHONE MOUNTING The M 12G guitar monitor is equipped with a 5 a inch 27 thread microphone attachment mounted to the grille with a 8 x 2 inch screw This attachment permits the user to mount a goose neck or a mic clip on the speaker The monitor may then be easily miked eliminating the need for a mic stand and keeping the floor clear around the performer GRILLE REMOVAL AND ADJUSTMENT The grille assembly of the M 12G is fastened to the enclosure using three 8 x 1 2 inch and one 8 x 2 inch screws The grille assembly can be quickly and easily removed by using a phillips screw driver allowing access to the drivers or to rotate the grille so the orientation of the Electro Voice logo can be changed ELECTRO VOICE UNIFORM LIMITED WARRANTY STATEMENT Electro Voice products are guaranteed against malfunction due to defects in materials and workmanship for a specified period as noted in the individual product line statement s below or in the individual product data sheet or owner s manual beginning with the date of original purchase If such malfunction occurs during the specified period the product will be repaired or replaced at our option without charge The product will be returned to the customer prepaid Exclusions and Limitations The Limited Warranty does not apply to a exterior finish or appearance b certain specific items described in the individual product line statement s be
7. ows unobtrusive placement on stages and aims the sound of the guitar directly to the player s ears rather than along the floor The player hears exactly what is miked and the monitors do not have to be as loud for the player to hear the same level of output Stage levels are therefore controlled and interfer ence in the room is lessened between the sound from the stage and the sound from the main speaker systems Cleaner monitor and house mixes are possible The M 12G is sealed rather than vented The rolloff that this acoustic suspension design provides is gradual beginning just above the low E string of the guitar The low end is tight and clean without excess woofiness and the midrange and highs are well balanced ENCLOSURE The enclosure is molded of polyethylene providing durability and light weight Monitor Electro Voice a MARK IV company Hi a A FIGURE 1 Axisi Amplitude Response 1 watt 1 meter M 12G Guitar Monitor Speaker System ing angles of 35 45 or 50 are available depending on which side of the cabinet is placed on the floor An integrally molded handle provides precise comfortable balance when carrying the 31 5 pound monitor A steel grille screen protects the speaker CONNECTIONS The M 12G guitar monitors are designed to receive speaker level signals from the external speaker jack of a combo amp or amp head as well as from the power amplifier in a rack system Quarter i
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