1. Introduction
The CAD Audio D27 is a supercardioid dynamic handheld microphone designed for vocal performance and general sound reinforcement. It features a QuietTouch on/off switch and a neodymium capsule, providing superior gain before feedback and a clear, articulate signal. This manual provides essential information for the proper setup, operation, and maintenance of your D27 microphone.
2. Product Features
- QuietTouch On/Off Switch: Enables silent activation and deactivation of the microphone signal, preventing unwanted noise.
- Neodymium Capsule: Engineered for a hot signal output, ensuring powerful and articulate sound.
- Durable All-Metal Construction: Provides robust reliability for demanding use.
- Supercardioid Polar Pattern: Offers excellent off-axis rejection, reducing feedback and isolating the desired sound source.
- Wide Frequency Response: Captures a broad range of audio from 60Hz to 17kHz.
3. Package Contents
Verify that all items are present in your package:
- CAD Audio D27 SuperCardioid Dynamic Microphone
- Microphone Clip
- Protective Pouch
Image: The CAD Audio D27 microphone, its included mic clip, and a protective pouch, laid out on a surface.
4. Setup
4.1 Connecting the Microphone
- Locate the XLR connector at the base of the D27 microphone.
- Connect a standard 3-pin XLR cable (not included) to the microphone's XLR output. Ensure a secure connection.
- Connect the other end of the XLR cable to an input on your mixer, audio interface, or amplifier.
4.2 Mounting the Microphone
- Attach the included microphone clip to a standard microphone stand.
- Gently insert the D27 microphone into the microphone clip until it is securely held.
- Adjust the microphone stand and clip to the desired height and angle for optimal performance.
Image: The CAD Audio D27 microphone shown mounted on a stand, with a clear view of its XLR connector at the base and the on/off switch on the body.
5. Operating Instructions
5.1 Using the QuietTouch On/Off Switch
The D27 features a QuietTouch on/off switch located on the microphone body. To activate the microphone, slide the switch to the 'ON' position. To mute or deactivate the microphone, slide the switch to the 'OFF' position. This switch is designed to operate silently, preventing audible clicks or pops in your audio signal.
Image: A close-up view of the CAD Audio D27 microphone, highlighting the QuietTouch on/off switch for silent operation.
5.2 Microphone Placement
For optimal sound quality and to minimize feedback, position the microphone directly in front of the sound source (e.g., vocalist's mouth) within a few inches. Due to its supercardioid polar pattern, the D27 is most sensitive to sounds directly in front of it and rejects sounds from the sides and rear. Experiment with distance and angle to achieve the desired sound.
Image: A direct front view of the CAD Audio D27 microphone head, mounted on a stand, illustrating its primary pickup direction.
5.3 Gain Staging
Adjust the input gain on your mixer or audio interface to an appropriate level. Start with the gain low and gradually increase it until the signal is strong without clipping or distortion. The D27's neodymium capsule provides a hot signal, so less gain may be required compared to other dynamic microphones.
6. Maintenance
6.1 Cleaning
To clean the microphone, gently wipe the body with a soft, dry cloth. For the grille, use a soft brush to remove any debris. Do not use liquid cleaners directly on the microphone, as this can damage the internal components.
6.2 Storage
When not in use, store the D27 microphone in its protective pouch to shield it from dust, moisture, and physical damage. Avoid storing the microphone in extreme temperatures or high humidity.
7. Troubleshooting
7.1 No Sound Output
- Ensure the microphone's on/off switch is in the 'ON' position.
- Check all XLR cable connections for security and proper insertion.
- Verify that the input gain on your mixer/interface is turned up.
- Test with a different XLR cable and/or a different input channel on your mixer/interface to rule out faulty equipment.
7.2 Distorted Sound
- Reduce the input gain on your mixer/interface. The signal may be too hot, causing clipping.
- Ensure the microphone is not positioned too close to the sound source, which can cause overload.
- Check for any damaged cables or connectors.
7.3 Feedback (Howling Sound)
- Reposition the microphone further away from loudspeakers or monitors.
- Ensure the microphone is pointed away from speakers, utilizing its supercardioid rejection.
- Reduce the overall volume or specific frequency bands on your mixer that are causing the feedback.
8. Specifications
| Specification | Value |
|---|---|
| Model Number | D27 |
| Polar Pattern | Supercardioid |
| Frequency Response | 60Hz – 17kHz |
| Sensitivity | -51 dBV (2.8mV @ 1Pa) |
| Impedance | 520 ohm |
| Connector Type | XLR |
| Construction Material | Metal |
| Product Dimensions | 10.16 x 6.35 x 22.86 cm |
| Item Weight | 0.38 kg |
9. Warranty and Support
9.1 Warranty Information
The CAD Audio D27 microphone comes with a 2-year manufacturer's warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
9.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact CAD Audio customer support. Refer to the official CAD Audio website for the most current contact information and support resources.