The 8K4 is a flexible and reliable 8-channel power amplifiers with up to a total of 8,000 W at 4Ω, ideal for multi-zone applications in medium to large-scale installs: Ottocanali 8K4 supports any combination of lo-Z loudspeakers, mono-bridgeable channel pairs and 70V/100V Hi-Z distributed lines with no need for output step-up transformers. The Ottocanali 4K4 features switchable main/aux signal inputs and offers a wide range of system control, alarms, GPI/O and monitoring functions as well as sound shaping options.
The 8K4 implements redundant universal switch mode power supplies with PFC and patented SRM (Smart Rails Management) technology maximizing reliability, efficiency and reducing power consumption.
legendary efficiency saves valuable energy, keeping both operational cost and ‘carbon footprint’ at a minimum: the 8K4 shines with outstandingly low power consumption and heat dissipation; This dramatically reduces costs from the AC mains supply and air conditioning/cooling systems – not to mention the benefits to the environment for a greener planet
Power supply
Redundant universal switch mode power supply up to 400VAC tolerant with Power Factor Correction
Patented output filter with ripple cancellation network
Low Inrush Limiting reduces AC inrush current, removing the need for expensive power sequencers
Detachable AC mains cable with IEC C19/22.2 (16A for EU, 20 A for USA) socketProtections
Fully protected circuit design with:
Ac protection: shut down power supply when AC mains voltage is outside operating range
Clip limiter: prevents severely clipped waveforms from reaching loudspeakers, while still maintaining full peak power output
DC protection: protects against infrasonic signal at the outputs
VHF protections: protects the loudspeakers against non audible, strong, non musical high frequency signals
Short circuit protection: protects the amplifier from short circuit or other stressful events for the output circuits with automatic protection reset
Long term limiter: protects the loudspeaker against steady long term rms (non audio) signals reducing maximum output
Thermal protection: output stages operating temperature up to 80 °C (176 °F)
Temperature controlled continous variable speed fan, front to back airflowGeneral
Fixed frequency switchmode output stage for high grade sound accuracy
All models 2 RU for reduced rack cost and space
Light weight - for easier racking and shipping: 14 kg / 30.8 lbs
Standard Phoenix connectors: analog and digital input, audio outputs, aux supply, alarms and GPIO
Remotely switchable double input (main and aux) per channelLoudspeaker system configuration
Direct drive either low impedance loads or 70V / 100V Hi-Z distributed lines
Switchable 35Hz / 70Hz high pass filter per channel
Mixed configuratio with Lo-Z/Hi-Z systems possible
Bridged mode low impedance per channel pairAlarms and GPIO
General Purpose Input/Output alarm interfaces:
dangerous DC in the output power signal
thermal stress
Configurable alarm contact NC/NO per channel
Remote AUX input / MAIN input switch
Remote ON/OFF switch
PWS OUT connector providing up to 24VDCDigital Signal Processing*
Top-grade DSP with high dynamic range and extensive feature set
Input/output independent equalizers per channel providing PEQ, raised cosine, shelving IIR filters as well as custom output FIR filters
Delay for time alignment
Active DampingControl™ for cable compensation
Power limiter (TruePower™, RMS voltage, RMS current) + Peak LimiterRemote management*
Control and monitoring through Armonía Pro Audio Suite™
