Driving 4 ohm speakers


I have been given a pair of ADS L200 and a pair of ADS L300 speakers. I am planning to take them to my office, which is about 12x16. I have an old Arcam Alpha 9 amp that I will use there.

Forgive this sophomoric question. The Arcam is rated to drive one set of 4 ohm speakers, or two sets of 8 ohm. The ADS are 4 ohm. My question is, can I drive both with this amp at low volumes? In this small space, I can't see cranking up the volume very high. Obviously, I don't want to burn out either my amp or my speakers.

Thanks for your advice.
lynnc
The Arcam, (wonderful gear), probably has enough current so it wouldn't be a problem, so you can most likely do it. However, to be safe, I might put a multi speaker switching device in line. One that comes to mind, is the Adcom. Don't know if they still make it or not. The way it works, as I recall, is that it places a 4 ohm resister in line, so the amp, sees a non reactive 4 ohm load.
This, if still available is an easy fix, and would give you piece of mind.
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If worried,wire them in series>> Out to L200 "+",out the "-" to the L300 "+","-" back to the Arcam.This should present the Arcam with a 6-8 ohm load.