Samsung SV-661B - Manual (Page 46)

Input impedance 10K ohm nominal, ac coupled
Maximum input voltage (LIN + RIN)PEAK < 4.5 V for THD ≤ 0.3%
LIN or RIN < 2.0 Vrms for THD ≤ 0.3%
Sensitivity 100 mV at 1 kHz for 88 dB SPL at 1 meter
Connector type 3.5 mm (.125 inch) stereo phone mini
Accessories
There are many accessories available for your projector and new ones being
added frequently. Please refer to http://www.infocus.com/ and select from
the many accessories listed there for purchase.
36 iL2120 IBM Value Data/Video Projector, iL2220 Conference Room Data/Video Projector: User’s Guide