rolls pro mix iv manual
The Rolls ProMix IV MX124 is a compact, lightweight, four-channel stereo microphone mixer designed for mixing four microphones into stereo outputs with phantom power and low-cut filters.
It is ideal for live sound, broadcasting, and installations, offering versatile signal processing and reliable performance for professional audio applications.
Overview of the Rolls ProMix IV MX124 Mixer
The Rolls ProMix IV MX124 is a four-channel stereo microphone mixer designed for professional audio applications. It features four XLR inputs with individually switchable phantom power and low-cut filters, providing flexibility for various miking setups. The mixer offers balanced XLR, 1/4″, and 1/8″ stereo outputs, making it ideal for live sound, broadcasting, and installations. Its compact design and lightweight construction allow for easy portability and integration into mobile or fixed setups.
Key Features and Applications
The Rolls ProMix IV MX124 offers four XLR inputs with switchable phantom power and low-cut filters, ideal for professional audio applications. Its compact design supports live sound, broadcasting, and installations. Transformer-balanced XLR outputs ensure high-quality audio transmission. Portable and lightweight, it is suitable for mobile setups and fixed installations, providing reliable performance for mixing microphones in various environments.
Specifications and Features
The Rolls ProMix IV MX124 features four XLR inputs with phantom power, low-cut filters, and transformer-balanced XLR outputs. It has a frequency response of 25 Hz to 16 kHz, input impedance of 600 Ohms, and THD + noise of 0.02%. The signal-to-noise ratio is 84 dB, ensuring high-quality audio processing and reliable performance.
Technical Specifications of the ProMix IV MX124
- Input Impedance: 600 Ohms
- Output Impedance: XLR 600 Ohms, 1/4 and 1/8 inputs 10 Ohms
- THD + Noise: 0.02%
- Signal-to-Noise Ratio: 84 dB
- Frequency Response: 25 Hz ― 16 kHz (0 / -3 dB)
- Max Output Level: +14 dB
- Max Input Level: -14 dB
- Max Gain: 55 dB
- Low-Cut Filter: -3 dB at 100 Hz
Input/Output Impedance and Signal Processing Capabilities
- Input Impedance: 600 Ohms
- Output Impedance: XLR 600 Ohms, 1/4 and 1/8 inputs 10 Ohms
- THD + Noise: 0.02%
- Signal-to-Noise Ratio: 84 dB
- Frequency Response: 25 Hz ― 16 kHz (0 / -3 dB)
- Max Output Level: +14 dB
- Max Input Level: -14 dB
- Max Gain: 55 dB
- Low-Cut Filter: -3 dB at 100 Hz
Quick Start Guide
Unpack and install batteries or connect DC power. Plug in microphones and output devices. Adjust gain and output levels for optimal sound quality. Begin mixing audio signals seamlessly.
Unpacking and Initial Setup
Carefully unpack the ProMix IV MX124 and inspect for damage. Insert two 9V alkaline batteries or connect the included DC power supply (PS27). Ensure the mixer is placed on a stable surface. Connect microphones to the XLR inputs and link output devices to the XLR, 1/4″, or 1/8″ outputs. Power on the mixer and adjust settings as needed for optimal performance.
Basic Operation and Connection Steps
Connect microphones to the four XLR inputs, ensuring each is securely plugged in. Enable phantom power if using condenser microphones. Attach output devices to the XLR, 1/4″, or 1/8″ jacks. Set the output level controls to match your equipment. Adjust the gain for each channel to optimize audio levels. Use the low-cut filter to reduce low-frequency noise if needed. Power the mixer via batteries or the included DC power supply for reliable operation.
Installation and Setup
Place the mixer on a stable surface, connect power via batteries or DC input, and install any necessary accessories. Ensure all inputs and outputs are securely connected for optimal performance.
Powering the Mixer: Battery and DC Power Options
The Rolls ProMix IV MX124 can be powered using two 9V alkaline batteries or via a DC power jack with a 5.5mm tip-negative connector. The included Rolls PS27 power supply ensures reliable operation. For optimal performance, use high-quality batteries and keep the DC cable securely connected to avoid power loss during use.
Connecting Microphones and Output Devices
Connect microphones to the four XLR inputs, each with switchable phantom power for condenser mics. For output, use the transformer-balanced XLR outputs or the convenient front-panel 1/4″ and 1/8″ stereo jacks. Ensure all cables are securely connected to avoid signal loss or interference. Properly match input and output levels to maintain optimal audio quality during operation.
Operating the Mixer
The ProMix IV MX124 offers intuitive controls for adjusting gain, output levels, and phantom power. Each channel features a low-cut filter and independent volume control for precise audio shaping.
Adjusting Gain and Output Levels
Adjusting gain and output levels on the ProMix IV MX124 ensures optimal audio performance. Each channel features an independent gain control, allowing precise adjustment of input levels. The master output controls enable balancing of the final mix. Use the LED indicators to monitor signal levels and avoid distortion. Proper gain staging is crucial for achieving clear, professional-quality audio outputs.
Using Phantom Power and Low-Cut Filters
The ProMix IV MX124 offers individually switchable phantom power for each XLR input, ensuring compatibility with condenser microphones. Engage the low-cut filters to reduce low-frequency noise and hum, ideal for minimizing ambient interference. These features provide precise control over your audio signals, enhancing clarity and professionalism in your mixes.
Troubleshooting Common Issues
Common issues include audio distortion, hum, or no output. Check connections, ensure proper power supply, and verify phantom power usage with condenser microphones for optimal performance.
Resolving Audio Distortion and Hum
Audio distortion and hum can occur due to improper gain staging or faulty connections. Adjust input levels to avoid clipping, ensure proper phantom power usage, and check for ground loops. Clean connections and verify cable integrity. If hum persists, isolate the source by testing inputs one at a time and ensure the mixer is properly grounded.
Addressing Phantom Power and Connectivity Problems
If phantom power issues arise, ensure it’s enabled only for microphones requiring it. Toggle phantom power switches to reset and verify proper connection of XLR cables. For connectivity problems, check all cable connections for security and damage. Ensure input devices are correctly matched to their respective channels. If issues persist, test with alternate cables or devices to isolate the problem source effectively.
Warranty and Support
The Rolls ProMix IV MX124 includes a limited 1-year warranty. Register your product on Rolls’ website for benefits and contact Rolls Corporation, Salt Lake City, UT, for support.
Manufacturer Warranty Details
The Rolls ProMix IV MX124 is backed by a limited 1-year manufacturer warranty. This warranty covers defects in materials and workmanship for a period of one year from the date of purchase. To activate the warranty, users must register their product on Rolls Corporation’s official website. The warranty does not cover damage caused by misuse, neglect, or normal wear and tear. For full details, visit www.rolls.com.
Contacting Rolls Corporation for Assistance
For any inquiries or support regarding the ProMix IV MX124, visit Rolls Corporation’s official website at www.rolls.com. You can also contact their customer support team via phone or email for assistance with troubleshooting, warranty claims, or technical questions. Additionally, the website provides access to user manuals, FAQs, and a support center to help resolve any issues promptly and efficiently.
Accessories and Compatible Products
The ProMix IV MX124 supports various accessories for enhanced functionality. Compatible power supplies include Rolls PS27 and PS12. It also works with XLR, 1/4-inch, and 1/8-inch cables. Additionally, adapters and mounting hardware are available for easy integration.
Recommended Accessories for the ProMix IV MX124
Enhance your ProMix IV MX124 experience with compatible accessories. The Rolls PS27 and PS12 power supplies ensure reliable operation. High-quality XLR, 1/4-inch, and 1/8-inch cables are ideal for secure connections. Additionally, adapters and mounting hardware are available for versatile installation options, ensuring optimal performance in various audio setups and applications.
Compatible Power Supplies and Cables
The ProMix IV MX124 is compatible with the Rolls PS27 and PS12 power supplies, ensuring reliable power delivery. Use high-quality XLR, 1/4-inch, and 1/8-inch cables for secure audio connections. The mixer features a DC power jack (5.5mm x 2.1mm tip-negative) for external power. Genuine Rolls accessories are recommended to maintain optimal performance and prevent potential damage to the mixer.
Comparing with Other Models
The ProMix IV MX124 stands out for its four-channel design and phantom power features. It differs from the Mini-Mix IV in channel count and output options, while the ProMix Plus offers expanded capabilities.
Differences Between ProMix IV and Mini-Mix IV
The ProMix IV MX124 offers four channels with phantom power and low-cut filters, while the Mini-Mix IV MX44S provides a more compact design with fewer features. The ProMix IV supports XLR, 1/4, and 1/8-inch outputs, making it more versatile for professional applications. Its transformer-balanced outputs ensure high-quality audio, whereas the Mini-Mix IV is better suited for smaller setups with basic mixing needs.
ProMix IV vs. ProMix Plus: Key Differences
The ProMix IV MX124 offers four channels with phantom power and low-cut filters, while the ProMix Plus MX54s is a three-channel stereo mic mixer. The ProMix IV features transformer-balanced XLR outputs and a compact design, making it ideal for professional applications. In contrast, the ProMix Plus includes LED meters for signal monitoring and is designed for simpler setups, catering to different user needs and preferences.
The Rolls ProMix IV MX124 is a reliable, versatile mixer ideal for professional and simple audio setups, offering phantom power, low-cut filters, and durable construction for high-quality sound.
Final Thoughts on the Rolls ProMix IV MX124
The Rolls ProMix IV MX124 stands out as a versatile and reliable mixer, perfect for professionals and newcomers alike. Its compact design, phantom power, and low-cut filters ensure high-quality audio processing; With detailed manuals and robust support, it remains a top choice for live sound, broadcasting, and installations, offering exceptional performance and ease of use across various applications.
Where to Find Additional Resources and Support
For additional resources, visit the official Rolls Corporation website at www.rolls.com. The site offers detailed manuals, troubleshooting guides, and warranty registration. Users can also access forums and contact support directly for assistance. Manuals are available in PDF format, allowing easy download and printing of specific pages for convenience.