XLi3500

The Crown XLi3500 is a two-channel power amplifier rated at 1350 W per channel into 4 ohms, 1000 W per channel into 8 ohms, and 2700 W bridged into 8 ohms. It is built for working sound: larger PA systems, houses of worship, event production, and clubs, where the amplifier gets loaded in and out week after week.

Input options cover both consumer and pro sources. Electronically balanced RCA and XLR inputs accept a mixer, a laptop interface, or a DJ controller, and selectable input sensitivity of 0.775V or 1.4V matches the amplifier to whatever feeds it so the full rated output stays available. Outputs use Speakon connectors and binding posts, so existing speaker cables work without adapters.

Three operating modes cover most rigs: stereo for a left and right pair, parallel for feeding two speakers from one source, and bridge-mono for a single subwoofer that needs the full 2700 W.

The front panel carries two level controls, a power switch, a power LED, and six LEDs that report signal presence, clip, and fault for each channel, so a problem is visible from across a stage. Forced-air cooling moves heat out during long sets, and protection circuits cover shorts, no-load conditions, on/off thumps, and radio-frequency interference.

Frequency response runs 20 Hz to 20 kHz, THD stays under 0.5%, signal-to-noise is above 100 dB A-weighted, and voltage gain is 36 dB. The chassis measures 19" x 3.5" x 14.4" and weighs 43 lb, with a 15A IEC power connector.