Seas XM003 SL26R 10" Passive Radiator (Mate to L26ROY)

Seas XM003 SL26R 10" Passive Radiator (Mate to L26ROY)

Designed by Seas SL26R 10" Passive Radiator for subwoofers.

• Large-roll rubber surround
• Cast frame
• M4 threaded hole on back so more mass can be added
• Same frame size as discontinued Peerless 830481 passive

Application note on using this passive with the L26ROY active woofer* using older version of this passive radiator

In many applications, the traditional bass reflex port may produce high-speed air noise or even have a poor effect due to a small port area or a large port length. In such cases, a passive radiator may bring about an improvement. 

The chart below will show you the mass which has to be added to the cone of the passive radiator in order to obtain the desired Helmholtz resonance frequency in a given cabinet volume.

The SL26R is already matched to our L26ROY and a 40 liter cabinet. but it’s also equipped with an M4 screw to which you can easily attach more added mass for other appications.  In this box you are 3dB down at 38Hz with the actual roll off at 25Hz (5.5dB down).  

For optimum performance, the passive radiator should be mounted vertically (with horizontal cone axis) This is especially important when a significant additional mass is used.