Markertek - The Future of Broadcast Supply

Call 800-522-2025
M-F 8:30am - 7pm EST

Free Shipping Promo Box

FREE SHIPPING No Minimum Order!

SHOP MARKERTEK EVERYDAY for all of your needs. Free shipping on almost every order placed on our website.
Special order & oversized freight intensive items ship at an additional cost. Continental US orders only.
Ask about our new Economy International Shipping Options.

Secure LoginClose X

Returning Markertek Customers

New Markertek Customers

Why Create an Account?

Creating a Markertek account now will save you time on future orders. You'll have full access to your order history and a personalized shopping experience.

Sonifex RB-SM1 Single Stereo to Mono Converter
    Questions? Ask a Markertek Expert:
    800-522-2025 Email

    Sonifex RB-SM1 Single Stereo to Mono Converter

    Manufacturer: Sonifex Ltd.

    Item #: SON-RB-SM1   •   MFG #: RB-SM1


    Our Price:$410.00

    free ship
    Availability: Usually ships in 3-10 business days
    This item is currently out of stock and will ship the minute we receive it – normally 3-10 business days. Need it sooner? Call 800-522-2025 and we'll make it happen,or email Customer Service for expedited delivery options. Certain Non-Stock Items Valued over $50.00 may Ship FREE UPS GROUND in the Continental US. Multiple quantities of the same non-Stock Item Valued below $50.00 may be ordered to meet the $50 minimum order requirement to qualify for Free UPS Ground Freight. This offer does not apply to certain freight-intensive or hazardous items. Certain restrictions may apply.



      The RB-SM1 converts a stereo input to a fully buffered and balanced mono line output, e.g. to supply cue in broadcast environments or to feed a mono PA system.

      The connections, which are on the rear panel, are of an XLR-3 type. The input is electronically balanced with an impedance of 20kO bridging. This can be wired unbalanced to accept an output from domestic equipment.

      The output is electronically balanced with an output impedance of <50O. The output can be wired unbalanced by grounding the non-phase signal, allowing you to feed both balanced and unbalanced equipment.

      Output gain adjustment using a pre-set potentiometer for the converter allows a normalised mono output from domestic stereo equipment. This potentiometer is accessible through the rear panel.


      Add Accessories for your RB-SM1:



      Continue Shopping View Cart