Audio-Technica ES925C Series Modular Gooseneck Microphone
User Manual
Introduction
Thank you for purchasing this product. Before using the product, read through the user manual to ensure that you will use the product correctly. Please keep this manual for future reference.
Features
- Modular microphone system comprised of an ES Series capsule, gooseneck assembly, and power module.
- RGB LED built into the gooseneck assembly can be linked seamlessly with ATUC Series products and the desk stand (AT8699R).
- Insert the power module into a standard XLRF-type connector, or use the included quick mount stand adapter (AT8474) to attach it to a microphone stand.
- Cover a wide sound acquisition range from 90° to 360° by replacing the capsule.
Safety Precautions
Although this product was designed to be used safely, failing to use it correctly may result in an accident. To ensure safety, observe all warnings and cautions while using the product.
Cautions for the product
- Do not subject the product to strong impact to avoid malfunction.
- Do not disassemble, modify or attempt to repair the product.
- Do not handle the product with wet hands to avoid electric shock or injury.
- Do not store the product under direct sunlight, near heating devices or in a hot, humid or dusty place.
Notes on use
- Do not swing or pull the product. Doing so may cause disconnection or damage.
- The circuitry in the microphone takes about 30 seconds to stabilize after power is supplied. You may hear some audio disturbance during startup.
- Check that the carry case ground is grounded with the mic cable latch firmly engaged before use.
- Do not excessively bend the gooseneck assembly, rotate the ends of the capsule, or pull on them. Doing so may cause disconnection or malfunction.
- The product is a modular system comprised of a microphone element, gooseneck assembly and power module. Make sure the parts are firmly attached before use.
- Do not remove the rubber O-ring on the power module connecting part at the lower section of the gooseneck assembly and the lower part of the XLR power module.
- When attaching parts, remove the black cap on the capsule connecting part of the gooseneck assembly. Do not remove the silicone part at the end of the capsule connecting part. [Note: A silicone part is present at the end of the capsule connecting part and should not be removed.]
Assembly
The assembly process involves connecting the gooseneck assembly to the XLR power module, attaching the capsule and windscreen, and securing the connection.
Step 1: Connecting Gooseneck and Capsule
- Insert the gooseneck assembly (c) into the XLR power module (d) while rotating it.
- Tighten until it does not rotate, and use the hex wrench (f) to tighten the set screw (e) to secure the gooseneck assembly in place.
- Connect the capsule (b) to the gooseneck assembly, and attach the windscreen (a).
- Ensure all parts are sufficiently tightened together to prevent issues like the LED not lighting up correctly or no sound output.
Step 2: Mounting with Optional AT8474 Adapter
If using the AT8474 optional adapter:
- Make mounting reference holes with a diameter of 1.5 mm (X) on the circumference of a circle with a diameter of 40 mm (1.6 inches) in the mounting surface.
- Make a hole with a diameter of 25.4 mm (1 inch) in the center (Y) of the mounting surface for the XLR power module.
- The outer diameter of the mounting surface is 52.4 mm (2.1 inches) (Z).
LED Color and Wiring
The LED color can be controlled, typically with compatible ATUC Series products or the AT8699R desk stand.
LED Color Chart
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| RED | GREEN | YELLOW | BLUE | MAGENTA | CYAN | WHITE |
Wiring Diagram
The XLR connector pinout is as follows:
- PIN 1: LED control
- PIN 2: Hot (audio signal)
- PIN 3: Cold (audio signal)
- CASE: Ground
[Note: LED control is only available with ATUC series products and AT8699R desk stand.]
Specifications
| Attribute | Specification |
|---|---|
| Model Series | ES925Cx/XLR (x = 6/12/15/18/21/24) |
| Element | Fixed-charge back plate, permanently polarized condenser |
| Polar pattern | Cardioid |
| Frequency response | 30 - 20,000 Hz |
| Open circuit sensitivity | -40 dB (10.0 mV) (0dB=1V/Pa, 1kHz) |
| Impedance | 130 ohms |
| Maximum input sound level | 140 dB SPL (1kHz at 1% THD) |
| Dynamic range | 112 dB (1kHz at Max SPL) |
| Signal-to-noise ratio | 66 dB (1kHz at 1Pa, A-weighted) |
| Phantom power requirements | 11 - 52 V DC, 6.7 mA |
| Weight | ES925C6/XLR: 102 g (3.6 oz) ES925C12/XLR: 126 g (4.4 oz) ES925C15/XLR: 131 g (4.6 oz) ES925C18/XLR: 136 g (4.8 oz) ES925C21/XLR: 141 g (5.0 oz) ES925C24/XLR: 146 g (5.2 oz) |
| Dimensions (HxWxD) | ES925C6/XLR: 197.4 mm (7.8") x 20.2 mm (0.8") x 20.2 mm (0.8") ES925C12/XLR: 304.8 mm (12") x 20.2 mm (0.8") x 20.2 mm (0.8") ES925C15/XLR: 381 mm (15") x 20.2 mm (0.8") x 20.2 mm (0.8") ES925C18/XLR: 457.2 mm (18") x 20.2 mm (0.8") x 20.2 mm (0.8") ES925C21/XLR: 533.4 mm (21") x 20.2 mm (0.8") x 20.2 mm (0.8") ES925C24/XLR: 609.6 mm (24") x 20.2 mm (0.8") x 20.2 mm (0.8") |
| Output connector | 3-Pin XLRM-type |
| Optional interchangeable elements | ESE-Ha (100°), ESE-Oa (360°), ESE-MLa (90°) |
| Included accessories | Windscreen AT8109a, Set screw (M2x2 mm (0.08")) 2 pcs., Hex wrench (0.89 mm (0.04")) |
Diagrams and Visuals
Polar Pattern
The polar pattern diagram illustrates the cardioid pickup pattern, showing maximum sensitivity at 0° and decreasing sensitivity as the angle increases, with the lowest sensitivity at 180°.
Frequency Response
The frequency response graph displays the microphone's sensitivity in decibels (dB) across a range of frequencies in Hertz. The response is generally flat from 30 Hz to 20 kHz, with a slight upward trend in the higher frequencies.
Dimensions
Detailed diagrams show the physical dimensions of the different ES925C microphone models, highlighting their varying lengths (from 197.4 mm for the ES925C6/XLR up to 609.6 mm for the ES925C24/XLR) while maintaining a consistent diameter of 20.2 mm. The XLR power module (ES8544) is also depicted with its dimensions.
