This Russound expansion block lets you easily add four more impedance matching volume controls and pairs of speakers to one stereo amplifier or receiver, when used in conjunction with the Russound EZB-1SC. You can have up to a total of eight impedance matching volume controls and speaker pairs by using these components together. The EZB-1SC is not designed to be used as a stand-alone module.

The "EZ-BLOCKS" are designed for surface mount applications. Position them in an area close to the amplifier and volume control wiring. Secure each block to the mounting surface with four #8 x 1/2" screws (not included).

Custom-tailored advice — before and after you buy
Installing EZ-BLOCKS requires you to use impedance matching controls and to run speaker cable in your walls, unless your home is already pre-wired. Our Audio/Video Designers can help you map out the details. Plus, our tech support specialists can help you through your installation step-by-step.

  • expansion block only — requires EZB-1SC
  • power handling: 150 watts RMS per channel
  • for use with impedance-matching volume controls
  • accepts up to 14 gauge wire
  • inner-tab holes allow for vertical and horizontal mounting
  • 6-7/8"W x 3"H x 1-1/4"D
  • warranty: 10 years
  • Our 60-day money-back guarantee
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Hands-on research

What's in the box?

Download owner's manual

  • Speaker connecting expansion block
  • Instruction Manual

Product Research


Overview: The Russound EZB-2SC "EZ-Block" is an modular speaker connecting expansion block which, when used with the EZB-1SC, allows you to connect 4 additional pairs of speakers to a single amplifier. The EZB-2SC has removable, color-coded, snap-in connectors for easier wiring, and plugs directly into EZB-1SC. This unit has 4-conductor output connections for up to 4 pairs of speakers. In addition to an EZB-1SC, you can daisy chain three additional EZB-2SC expansion blocks for a total of 16 speakers. The EZB-2SC is designed for use with impedance-matching volume controls (such as 543ALTX2D) on the individual speaker pairs.

Snap Connectors: Each pair of speakers is connected to the EZ-Block via the color-coded snap-in connectors. Each connector will accept up to 14-gauge wire. These screwless connectors have wire locking levers which snap the speaker wire into place.

Mounting: The EZB-2SC is designed for surface mount applications.

Power Rating: The EZ-Block has a power rating of 150 watts RMS, 300 watts peak.

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