The 300W Crown Audio CDi 4|300 4-Channel DriveCore Series Power Amplifier utilizes technology derived from the flagship Crown DriveCore Install series amplifiers, providing an impressive mix of high-performance, rich feature set, and competitive cost. The CDi DriveCore 4|300 offers streamlined functionality for most small- to medium-sized installation such as restaurants, retail stores, and more. The DriveCore integrated circuit eliminates hundreds of components within the amplifier, reducing the variability of component values and increasing reliability, resulting in remarkable audio fidelity from an efficient design. The 4-channel amplifier is simple to use and includes a network control & monitoring, an advanced DSP circuit, and an easy-to-use, front-panel interface. The amplifier is capable of driving up to 100Vrms speaker loads without requiring a transformer and comes pre-loaded with JBL speaker tunings to help make installations quicker and easier. The CDi 4|300 features an Ethernet port for using HARMAN's HiQnet Audio Architect software for configuration and outputs. Features DriveCore Technology Remarkable Performance & Reliability Supports HiQnet Audio Architect Software Monitor & Control over Standard TCP/IP Color LCD Panel for Control & Monitoring Advanced DSP on Inputs & Outputs Works with 70V & 100V Speakers Universal Power Supply 2 Terminal Blocks Included Included Power Cord Specifications Amplifier Number of Channels 4 Amplifier Power Rating 300 W per Channel1200 W Bridged Load Impedance / Voltage Stereo:2 / 4 / 8 / 16 Ohms per Channel70 / 100 V per ChannelBridged:4 / 8 / 16 Ohms140 / 200 V Performance Protections DC Fault, Low Impedance, Open Circuit, Overcurrent, Overvoltage, Ultrasonic, Undervoltage Frequency Response 20 Hz to 20 kHz ±0.5 dB (8 Ohms) Damping Factor > 1000 Input Sensitivity Line:0.7 Vrms to 2.5 Vrms / -.8 dBu to 10.2 dBu (at 8 Ohms)1 Vrms to 3.5 Vrms / 2.2 dBu to 13.2 dBu (at 70 V)1.4 Vrms to 5 Vrms / 5.2 dBu to 16.2 dBu (at 100 V) Input Impedance 20 Kilohms (Balanced)10 Kilohms (Unbalanced) Max Gain 34 dB (at 4 Ohms, at 8 Ohms, at 70 V, at 100 V) Max Input Level +20 dBu SNR > 104 dB THD 0.35% (at Rated Power) Intermodulation Distortion ≤ 0.35% Crosstalk > 80 dB (Below Rated Power) Common Mode Rejection Ratio (CMRR) > 70 dB Signal Processing DSP 32-Bit Floating Point DSP at 96 kHz Audio Delay Adjustable Up to 1000 ms per Channel Crossover High-Pass:16 to 20 kHz, 12/24/48 dB/Octave BesselHigh-Pass:16 to 20 kHz, 6/12/24/48 dB/Octave ButterworthHigh-Pass:16 to 20 kHz, 12/24/48 dB/Octave Linkwitz-RileyLow-Pass:16 to 20 kHz, 12/24/48 dB/Octave BesselLow-Pass:16 to 20 kHz, 6/12/24/48 dB/Octave ButterworthLow-Pass:16 to 20 kHz, 12/24/48 dB/Octave Linkwitz-Riley EQ 8-Band Parametric EQ per Channel Limiting Yes Connectivity Analog Audio I/O 2x Block 6-Pin Balanced Line Input2x Barrier Strip 4-Pin Speaker Output Digital I/O 1x RJ45 Ethernet Input/Output (Control) USB I/O No Power AC Input Power Universal:100 to 240 VAC, 50 / 60 Hz AC Power Connector 1x IEC 15 A / NEMA 5-15 Current Consumption 120 VAC:1.8 to 2.6 A (1/8 Power)3.5 to 5 A (1/3 Power)230 VAC:1 to 1.4 A (1/8 Power)1.8 to 2.8 A (1/3 Power) Power Consumption 120 VAC:127 to 160 W (1/8 Power)166 to 239 (1/3 Power)230 VAC:141 to 173 W (1/8 Power)180 to 239 (1/3 Power) Physical Display & Indicators Front Panel:1x Multi-Color Graphic LCD Rackmount Size 2 U Cooling Fan (Variable Speed) Thermal Dissipation 814 BTU/hr (Maximum) Dimensions 19.0 x 3.5 x 12.2" / 48.3 x 8.9 x 31.1 cm Weight 16.1 lb / 7.3 kg Packaging Info Package Weight 20.05 lb Box Dimensions (LxWxH) 22 x 18.9 x 7.8"