Shure 507B User Guide
coupling the Model 507B to the input of a high impedance amplifier. A two-conductor shielded cable may be used for extending only the microphone circuit. If both the microphone circuit and the remote circuit are to be extended, a four-conductor cable should be used having two shielded conductors for the microphone circuit.
The microphone circuit of the Model 507B is normally open when the microphone switch button is in the normal position. The microphone switch may be rewired to have a normally shorted microphone circuit. To modify the Model 507B for a normally shorted microphone circuit, proceed as follows:
1.Remove the three No. 6 Phillips self-threading screws from the back of the microphone case.
2.Separate the case front and back, and remove the microphone switch button.
3.Unsolder or clip the WHITE cable lead from upper (from bottom of microphone) switch solder lug (see Figure 2).
4.Solder the WHITE cable lead to the lower switch solder lug (containing the YELLOW lead to the microphone cartridge).
5.Place the microphone switch button in the normal position on the case front. Place the case back on the case front and firmly press the two sections together. Fasten the case back to the case front with the screws previously removed.
OPERATION
The Model 5078 will operate very satisfactorily under all ordinary conditions of humidity, heat, and cold. Dropping the microphone or other severe mechanical shocks should be avoided.
SPECIFICATIONS
TYpe
Dynamic
Frequency Response
100 to 5,000 Hz (see Figure 3)
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-Z |
+I0 |
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o |
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cj -I0 |
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WL |
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I I l I l l l l l |
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l l l l l l l |
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lpO0 |
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lO.000 |
Pop00 |
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FREQUENCY IN HERTZ |
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TYPICAL FREQUENCY RESPONSE |
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FIGURE 3 |
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Output Level (at 1,000 Hz) |
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Open Circuit Voltage* . . . . . . . . . . . . . . . . .-39.0 |
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(11.2 mV) |
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Power Level** |
...................... . -58.0 dB |
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*O dB = 1 volt per 100 microbars **0 dB = 1 milliwatt per 10 microbars
Impedance
Microphone rating impedance is 150 ohms (200 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms
Switch
Double-pole, single-throw, leaf-type
Cable
Attached, recoils to 0.3m (1 ft), extends to 1.8m (6 ft)
Case
Two-tone gray and charcoal ARMO-DUR@
Dimensions
See Figure 4
-(II49/64 INJ r
44.mM
OVERALL DIMENSIONS
FIGURE 4
Net Weight
312 |
grams (11 oz) |
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Packaged Weight |
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510 |
grams (18 oz) |
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FURNISHED ACCESSORY |
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Mounting Bracket ......................... |
RK6MB |
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REPLACEMENT PARTS |
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Cartridge ................................... |
R50 |
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Switch |
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
90A3507 |
Cable |
................................... |
70A4110 |
GUARANTEE
This Shure product is guaranteed in normal use to be free from electrical and mechanical defects for a period of one year from date of purchase. Please retain proof of purchase date. This guarantee includes all parts and labor. This guarantee is in lieu of any and all other guarantees or warranties, express or implied, and there shall be no recovery for any consequential or incidental damages.
SHIPPING INSTRUCTIONS
Carefully repack the unit and return it prepaid to:
Shure Brothers Incorporated Attention: Service Department 1501 West Shure Drive Arlington Heights, Illinois 60004
If outside the United States, return the unit to your dealer or Authorized Shure Service Center for repair. The unit will be returned to you prepaid.
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