Powersoft K6 2-Channel High Performance Power Amplifier

The K6 fills an important space in modern tour sound amplification, yet it does not use up much room in its single rack space chassis. Absolutely stable with 2 Ohm loads, it fits subs in smaller systems as well as lows and mids in larger setups. More power is available if needed: Per Step-up card a K6 can be upgraded to become a K8, making it a safe investment - more power without replacing the entire amplifier.

In use worldwide by leading touring and event sound companies, K Series is preferred among the top ranking system designers, sound engineers, and system techs on the road for making their lives easier, giving them reliable premier-grade power and headroom in the smallest possible package size.

Fully digitally controlled and with a serial PC communication port as standard, the K6 is also available with KDSP board and KAESOP Ethernet/AES3 interface: the K6 DSP+AESOP amounts to a fully integrated, highly sophisticated yet easy to use power source including state-of-the-art sound shaping and system management capabilities, remotely controllable via Powersoft's ArmoniaPlus (Interface available for MediaMatrix, Crestron, AMX, Q-SYS control and monitoring systems).

Like all K Series models, the K6 is designed for, and absolutely stable with, 2 Ohm loads. Hence, with multiple speakers/drivers in parallel, a single K6 is well capable of powering e.g. a major section of a medium-sized line array, or a number of full-range speakers, effectively reducing the number of amps needed for powering a specific system.

The K6 can be software upgraded to become a K8, and even a K10, making it a safe investment that grows with loudspeaker systems without the need for replacing the amp hardware. This fact reveals the otherwise hidden power density deriving from unique Powersoft technologies despite running off a single mains phase, while fitting into a single 19" rack unit and weighing only 12 kg/26.5 lb, all a result of efficiency exceeding 85%.

Better still, the K6 can be equipped, at the factory or anytime later, with an optional state-of-the-art DSP board for extensive sound management functionality. IIR/FIR filters, safety features like TruePower limiting and LiveImpedance, as well as the convenient Active DampingControl are intuitively manageable with the free PC software Armonia Pro Audio Suite via the standard RS485 communication port.

Features

Power supply
• Advanced switch-mode worldwide operating power supply technology for high performance and compact size
• Power Factor Correction PFC for extremely low mains consumption and extremely wide mains operating range
• Low Inrush Limiting reduces AC inrush current, removing the need for expensive power sequencers

Protections
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 Degree C (176 Degree F)
• Temperature controlled continuous variable speed fan, front to back airflow
• Temperature forecast with LCD traced historical behaviour

General
• Fixed frequency switchmode output stage for high grade sound accuracy
• Compact size - all models only 1 RU for reduced rack cost and space
• Light weight - for easier racking and shipping: 12 kg (26.5 lbs) according to configuration
• Combo XLR/6.3mm jack Neutrik input connectors with link capability

Settings
• LCD matrix interactive display
• Comprehensive-user friendly front panel display menu
• Built-in defeatable clip limiters for each channel
• Digital gain-attenuator control
• Defeatable gate selection for each channel
• User selectable gain/sensitivity
• User selectable maximum output power for each channel
• User selectable maximum mains current draw
• Lockable set-up by user selectable access key code
• Built in remote control via the RS-485 interface provides full diagnostic, operational setting and system monitoring

Monitoring
• Hardware monitor available for fast local diagnostic
• Load impedance measurement / display for each channel
• Output power measurements / display for each channel
• Mains voltage and current measurements / display
• Downloadable log file of functional fault events with time related trace
• Smart Card settings, parameters and upgrades functionality

Legendary Powersoft efficiency
• Unequaled Class D design with fixed switching frequency
• Universal switch mode power supply with PFC (Power Factor Correction)
• Space and weight saving: only one rack space (1 RU) and 12 kg/26.5 lb
• Green Audio Power: more amplifier output power from the AC mains power distribution due to >85% efficiency

Outstanding performance and operational safety
• Excellent sonic quality by design, including amp clip limiters and patented ripple cancellation network
• Numerous amp/system/venue parameters can be configured, locked, and monitored; i.e. AC mains voltage/current draw to protect from breaker tripping

Communication
• Fully digitally controlled amplifier providing feedback of status information
• RS485 serial communication port standard on board, for amplifier control and monitoring via Armonia Pro Audio Suite software
• Proven reliability, yet downloadable log file of all functional fault events with time-related trace

Safe investment
Step-up program allows smooth upgrade to K10

Practically versatile
• Mono-bridgeable amplifier channels; switch for linking analog signal inputs
• AC inrush current limiting; channel output voltage limiting
• Digital gain attenuator for gain/sensitivity selection

Front panel interactive LCD display for local access and configuration

SmartCard reader/writer for firmware updates, preset storage, and Step-up

Front-to-rear airflow cooling with variable-speed fan, temperature controlled

Full protection circuitry: over/under AC voltage; troublesome signals (clipping, VHF, long-term RMS); DC; thermal; short circuit; mute at power on/off