Cart
0
RDL ST-UMX3 Audio Mixer 3 Mic or Line x 1 Mic or Line, Balanced Unbalanced Configuration
Couldn't load pickup availability
Brand: Radio Design Labs
Sku: WBMUSB01M3YUNI8
Shipping information
At Emusicmart, we are committed to delivering your music gear and electronics quickly and safely. Every order is carefully packed and shipped with insurance for added protection.
Processing & Delivery Time
- Order Processing: Orders are processed within 1–3 business days (Monday–Friday, excluding holidays).
- Delivery Time (U.S. only): Standard delivery typically takes 3–5 business days after dispatch.
- Please note: Delivery times are estimates only and may vary depending on your location, weather conditions, carrier delays, or other factors beyond our control.
Shipping Destinations
- We currently ship only within the United States.
Shipping Costs
- We are pleased to offer free standard shipping on all U.S. orders.
- Expedited shipping options may be available at checkout (additional charges apply).
Packaging
- All orders are shipped in plain, secure packaging for privacy and protection.
- No product details will appear on the outside of the package.
Signature Requirements
- For your protection, all orders valued at $250 or more may require a signature upon delivery.
Order Tracking
- Once your order ships, you will receive an email with tracking details so you can follow your shipment.
Lost, Delayed, or Damaged Shipments
- If your package is lost, delayed, or arrives damaged, please contact us immediately at support@emusicmart.com.
- We will work with the carrier to resolve the issue as quickly as possible.
Security Verification
- For your protection, we may occasionally contact you to verify payment or order details before shipping.
Questions?
For details on returns and refunds, please see our Return & Refund Policy.
If you have any questions about shipping or delivery, please contact our customer service team:
📧 support@emusicmart.com
⚠️ California Proposition 65 Warning :
Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
Secure payment
Guarantee safe checkout
RDL ST-UMX3 Audio Mixer 3 Mic or Line x 1 Mic or Line, Balanced Unbalanced Configuration
$240.10
Frequently Asked Questions
- Q: What types of inputs does the RDL ST-UMX3 audio mixer support? A: The RDL ST-UMX3 audio mixer supports three inputs, which can be either mic-level or line-level signals.
- Q: What is the maximum input signal for mic and line levels? A: The maximum input signal for the mic is -18 dBu, while for the line it is +25 dBu.
- Q: Is the mic input on the ST-UMX3 protected against phantom voltage? A: No, the mic inputs on the ST-UMX3 are not protected against phantom voltage. It is recommended to use the ST-MPA2 mic phantom adapter for such scenarios.
- Q: What is the gain range for the inputs on the RDL ST-UMX3? A: The gain for the mic input is adjustable from OFF to 60 dB, and for the line input, it is adjustable from OFF to 21 dB.
- Q: What is the frequency response range for the mic and line inputs? A: The frequency response for the mic input is 50 Hz to 100 kHz (+/- 1 dB), and for the line input, it is 10 Hz to 100 kHz (+/- 0.05 dB).
- Q: What is the total harmonic distortion plus noise (THD+N) for the RDL ST-UMX3? A: The total harmonic distortion plus noise (THD+N) is less than 0.006% for the line input and less than 0.04% for the mic input at 50 dB gain.
- Q: What is the operating temperature range for the RDL ST-UMX3 mixer? A: The ambient operating environment for the RDL ST-UMX3 is from 0°C to 55°C.
- Q: What type of power supply is required for the ST-UMX3? A: The RDL ST-UMX3 requires a ground-referenced power supply of 24 to 33 Vdc at 55 mA.
- Q: What is the output configuration of the RDL ST-UMX3? A: The output configuration of the RDL ST-UMX3 is 150 Ω balanced and 75 Ω unbalanced.
- Q: What features does the RDL ST-UMX3 offer for audio mixing? A: The RDL ST-UMX3 offers features such as combining mic-level or line-level signals, adjustable gain settings, and low distortion levels for high-quality audio mixing.