RDL EZ-MX4L 4x1 Stereo Line-Level Audio Mixer

MSRP: $275.85
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The EZ-MX4L is a stereo audio mixer with four line inputs. All line inputs connect through RCA jacks; one also includes a MINI-jack input. Left and right channel LED VU metering facilitates easy level adjustment. The line output is available on stereo RCA jacks or on a MINI-jack. The EZ-MX4L is used in houses of worship, restaurants, clubs, meeting rooms, studios, home component systems and commercial sound systems.


  • Four Channel Line-Level Audio Mixer
  • Three Unbalanced Line Inputs on RCA Jacks
  • One Line Input on MINI or RCA Jacks
  • Unbalanced Output on MINI or RCA Jacks
  • Dual-LED VU Meter for Each Channel


  • Headroom Accomodates High Input Level
  • Exceptional Headroom for an Unbalanced Mixer
  • Gold Plated RCA Input and Output Jacks
  • Audio VU Metering Facilitates Adjustment



Inputs (5):
> 10 kΩ, -10 dBV nominal on RCA jacks (4) or Mini Jack (1), +20 dBV max.

Level controls (4):
Off to 12 dB gain

Outputs (2):
-10 dBV nominal on RCA jacks (1) or Mini jack (1, stereo), +16 dBV max.

Frequency Response:
10 Hz to 20 kHz (±0.01 dB, line)

< 0.05%

< -72 dB (1 kHz)

Dual-LED VU Meter for Left and Right, calibrated to -10 dBV output

< -85 dB (below -10 dBV output)

24 Vdc power supply current:
30 mA (idle), 60 mA (max.)

Case dimensions:
5.75” (14.6 cm)W x 3” (7.6 cm)D

Mounting size:
1/3 rack width

Package Type:
Cardboard Box

Package Dimensions:
9.5 x 7 x 2.25 in.

Shipping Weight:
0.985 lbs.

WEEE weight:
0.59 lbs.

Tariff code:


RDL Three-Year Limited Warranty Installation of these products by the Purchaser shall constitute Purchaser’s acknowledgement and acceptance of the terms and conditions for sale and of this warranty, and shall constitute the Purchaser’s determination of the suitability of this product for the Purchaser’s intended application. Radio Design Labs, Inc., also referred to as RDL®, warrants to the Purchaser that products manufactured by RDL are free from defects in material and workmanship. This warranty applies to the period of three years from the date of shipment, except for component parts or products purchased from other sources and supplied by RDL. Such component parts or products bear only the warranty of the manufacturer thereof in effect at the time of shipment to the Purchaser. RDL will, without charge, and after written notice has been received and acknowledged by RDL, repair an RDL product if proved to be defective according to the usage of the trade, when such equipment is received by RDL at the location it designates with shipment costs prepaid by the Purchaser. RDL shall not be liable for any expense whether for repairs, replacements, material, service, or otherwise, incurred by the Purchaser or modifications made by the Purchaser to the product. No equipment shall be deemed defective if it shall fail to operate in a normal or proper manner due to exposure to excessive moisture in the atmosphere, excessive temperature extremes, improper environmental cleanliness, or any other environment not consistent with the principles of good engineering practice. In no event shall RDL have any liability for consequential damage or expense directly or indirectly arising from the use of the products, or any inability to use it either separately or in combination with other equipment or materials, or from any other cause, whether used in accordance with instructions or not. This warranty is void if equipment is altered in any way by other than RDL. RDL products are NOT intended for use in life support appliances, devices, or systems. Use of RDL products in such applications is done solely at the liability of the reseller/installer and/or end user. RDL reserves the right to change design parameters and specifications at any time without notice. The performance measurements reflect the products at the time of printing. This warranty is in lieu of all others, either expressed or implied. No representative is authorized to assume for RDL any other liability in connection with RDL products.