What makes the sub-sat systems from the JBL Control Contractor range stand out - besides their quality - is their versatility. There are three sub-sat systems in the Control Contractor range. These have been designed in such a way that they have similar sound character, frequency response, sensitivity, directivity, and impedance, meaning they can be used in combination with each other even within the same system – for instance combine Control 52 wall-mounted satellite speakers with a Control 40S/T subwoofer, or even two Control 42C and two Control 62P with a Control 50S/T.
The one condition is that each sub-sat system must contain at least two or four satellites but never one or three. This is because the crossover network built into the subwoofers contains two high-pass filters, each set to work properly with the impedance and sensitivity of two satellite speakers (16 ohms per speaker, divided by two gives 8 ohms).
Again the Control 50 Series sub/sat system, consisting of the Control 50 Subwoofer and Control 52 satellite speakers, has proved to be very popular. This system provides a very nice wide-bandwidth sound for places where you need excellent fidelity but may not need super-high SPL capability. It’s available as a “Pack,” or the individual speakers are available separately. And, of course, like the other subwoofer-satellite systems, the subwoofer or satellite can be intermixed with the corresponding in-ceiling or pendant models, depending on the needs of the architecture of the space.
All three of the systems can be run in low-impedance setting or on a 70V/100V line and this is easily changeable by using the tap setting switch on the sub. When running the system in low-Z the impedance is as follows:, the subwoofer by itself or with two satellites is 8 ohms, the subwoofer with four satellites is 4 ohms. When running a 70V/100V line to power the system the transformer in the sub can be set to 80W, 40W, 20W, plus 10W at 70V only. This relates to the power draw for just the sub or the sub with two satellites. For four satellites the power draw for the system increases by 30% (80W tap setting draws 104 Watts; the 40W tap setting draws 52 Watts; the 20W tap setting draws 26 Watts; and the 10W tap setting draws 13 Watts). If you have a larger space that requires more then one sub-sat system you can use two or more systems on same 70V/100V system given you have the correct power to drive multiple systems. You can also combine these systems with other systems on the same full-range 70V/100V line.