Film-Tech Forum ARCHIVE: QSC DCA 4 Channel Amps at 4 Ohms Bridged

This is topic QSC DCA 4 Channel Amps at 4 Ohms Bridged in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.

To visit this topic, use this URL:
https://ft-forum.com/ft/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=1;t=010506

Posted by Demetris Thoupis (Member # 833) on 06-19-2010, 12:20 PM:

Can the DCA 4 Channel Amp work at 4 Ohms impedance in Bridge mode? For the 1644 it says that it is not rated at 4 Ohms Bridged.
Demetris

Posted by Steve Guttag (Member # 268) on 06-19-2010, 01:04 PM:

The 1644 can not do a 4-ohm bridged (or a 2-ohm non bridged). The 1844 will do 4-Ohm bridged or 2-Ohm non-bridged.

That is the chief difference between the amps. One used the transistors for current handling, the other used it for more voltage.

Steve

Posted by Demetris Thoupis (Member # 833) on 06-19-2010, 01:45 PM:

Ok I use the ISA range then [Big Grin]

Posted by Steve Guttag (Member # 268) on 06-19-2010, 04:29 PM:

Got many ISA 4-channels? All of the DCA 2-channels will do 2-Ohm. the DCA-1222 will do 1.6-Ohm!