SHURE SM7dB Vocal Microphone with Active Preamp Instruction Manual

SHURE SM7dB Vocal Microphone with Active Preamp

Product Information

SAFETY PRECAUTIONS

Before using this product, please read and save the enclosed warnings and safety instructions.

• WARNING: Ignoring these warnings may cause severe injury or death as a result of incorrect operation.
• If water or other foreign objects enter the inside of the device, fire or electric shock may result.
• Do not attempt to modify this product. Doing so could result in personal injury and/or product failure.
• CAUTION: Ignoring these cautions may cause moderate injury or property damage as a result of incorrect operation.
• Never disassemble or modify the device, as failures may result.
• Do not subject to extreme force and do not pull on the cable or failures may result.
• Keep the microphone dry and avoid exposure to extreme temperatures and humidity.

General Description

The Shure SM7dB dynamic microphone has a smooth, flat, wide-range frequency response appropriate for content creation, speech, music, and beyond. A built­in active preamplifier provides up to +28 dB of low­noise, flat, transparent gain while pre­serving frequency response for a clean, classic sound. The SM7dB’s built-in preamp delivers the legendary sound of the SM7B, completely uncompromised and without the need for an in­line preamplifier. The SM7dB back panel switches allow cus­tomized frequency response and the ability to adjust or bypass the preamp.

Powering the SM7dB Preamplifier

Important: The SM7dB requires +48 V phantom power to operate with the preamplifier engaged. It will operate in bypass mode without phantom power.
To deliver audio directly to a computer, use an audio interface with an XLR input that provides +48 V phantom power, such as the Shure MVi or MVX2U, and turn phantom power on. When connecting to a mixer, use only balanced, microphone-level inputs with phantom power. Turn phantom power on for the channel your SM7dB is connected to. Depending on your interface or mixer, phantom power may be enabled through a switch, a button, or control software. Refer to the user guide for your interface or mixer to learn how to engage phantom power.

Preamplifier Best Practices
The SM7dB features a built­in active preamplifier which provides up to +28 dB of low­noise, flat, transparent gain that opti­mizes audio performance. Adjust the gain level on the SM7dB before adjusting levels on your interface or mixer. This approach maximizes the signal-to-noise ratio for a cleaner, clearer sound. In podcast or quiet vocal applications, you are more likely to need the +28 dB setting, while louder talkers or singers may only need the +18 dB setting. For instrumental applications, you may find that the +18 dB or the bypass settings reach the ideal in­put levels.

Using Variable Impedance Mic Preamplifiers
Select the highest available impedance setting on the external preamp when using the built-in preamp. If you are using a low impedance setting to change the tonality for creative purposes, bypass the SM7dB’s built-in preamp. Keeping the SM7dB preamp engaged with a low-impedance setting will not yield the same changes in tone.

Microphone Placement

Speak directly into the mic, 1 to 6 inches (2.54 to 15 cm) away to block off­axis noise. For a warmer bass response, move clos­er to the microphone. For less bass, move the microphone away from you.

Windscreen
Use the standard windscreen for general voice and instrumental applications. When you speak, you may hear vocal pops from some consonant sounds (known as plosives). To prevent more plosive sounds and wind noise, you can use the larger A7WS windscreen.

Adjust Back Panel Switches

1. Bass Rolloff Switch To reduce the bass, push the top-left switch down. This can help lower background hum from A/C, HVAC, or traffic.
2. Presence Boost For a brighter sound in mid-range frequencies, push the top-right switch up. This can help improve vocal clarity.
3. Bypass Switch Push the bottom-left switch to the left to bypass the preamp and achieve the classic SM7B sound.
4. Preamp Switch To adjust the gain on the built-in preamp, push the bottom-right switch to the left for +18 dB and to the right for +28 dB.

Switching Microphone Orientation

The SM7dB can be mounted on a boom arm or a stand. The default setup for the SM7dB is for a boom mount. To keep the rear panel facing upright when mounted on a stand, reconfigure the mounting assembly.
To set up the SM7dB for a microphone stand:

1. Remove tightening nuts on the sides.
2. Remove the fitted washers, the lock washers, the outer brass washers, and the brass sleeves.
3. Slide the bracket off the microphone. Be careful not to lose the washers still on the microphone.
4. Invert and rotate the bracket. Slide it back onto the bolts over the brass and plastic washers still on the microphone. The bracket should fit so the XLR connector faces the rear of the microphone and the Shure logo on the back of the mi­crophone is right-side up.
5. Replace the brass sleeves. Be sure they are seated properly within the inner washers.
6. Replace the outer brass washers, the lock washers, and the fitted washers.
7. Replace the tightening nuts and tighten the microphone at the desired angle.

Note: If the tightening nuts do not hold the microphone in place, you may need to re-position the brass sleeves and the washers.

Mounting Assembly – Exploded View

1. Tightening nut
2. Fitted washer
3. Lock washer
4. Brass washers
5. Brass sleeve
6. Mounting bracket
7. Plastic washer
8. Response switches
9. Switch cover
10. Windscreen

Install or Remove the Stand Adapter
To mount the microphone on a 3/8 in. stand, insert the included brass stand adapter and tighten it with a coin or screwdriver.

Important: Make sure that the slots on the adapter face outward.

Specifications

• Type Dynamic (moving coil)
• Frequency Response 50 to 20,000 Hz
• Polar Pattern Cardioid
• Output Impedance
• Recommended Load
• Sensitivity
• Hum Pickup (typical, at 60 Hz, equivalent SPL/mOe) 11 dB
• Preamplifier Equivalent Input Noise (A-weighted, typical) -130 dBV
• Polarity Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
• Power Requirements (with preamp engaged) 48 V DC [2] phantom power (IEC-61938) 4.5 mA, maximum
• Weight 0.837 kg (1.875 lbs)
• Housing Black enamel aluminum and steel case with black foam windscreen

1. 1 Pa=94 dB SPL
2. All specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity.

Accessories

Furnished Accessories

Replacement Parts

Certifications

CE Notice
Hereby, Shure Incorporated declares that this product with CE Marking has been determined to be in compliance with Euro­pean Union requirements. The full text of the EU declaration of conformity is available at the following site: https://www.shure.com/en­EU/support/declara­tions-of-conformity.

UKCA Notice
Hereby, Shure Incorporated declares that this product with UKCA Marking has been determined to be in compliance with UK­CA requirements. The full text of the UK declaration of conformity is available at the following site:
https://www.shure.com/en­GB/support/declara­tions-of- conformity.

Waste Electrical and Electronic Equipment (WEEE) Directive
In the European Union and the United Kingdom, this label indicates that this product should not be disposed of with household waste. It should be deposited at an appropriate facility to enable recovery and recycling. Please consider the environment, electric products and packaging are part of regional recycling schemes and do not belong to regular household waste.

Registration, Evaluation, Authorization of Chemicals (REACH) Directive
REACH (Registration, Evaluation, Authorization of Chemicals) is the European Union (EU) and the United Kingdom (UK) chemical substances regulatory framework. Information on substances of very high concern contained in Shure products in a concentration above 0.1% weight over weight (w/w) is available upon request.

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