K2

2-Channel High Performance Power Amplifier

OverviewModelsFeaturesSpecificationsDownloadsRelatedRelated case studies

Overview

With up to 4,800 W the K2 is the "smallest" amplifier in K Series. Built on the same technologies and features as present in the bigger models, it makes a full-fledged member of the amplifier line that changed the face and direction of the professional audio amplification market. Only 8kg/17.6lbs light, the K2 is the ideal companion for where space, weight, and uncompromised sound quality matter. Per Step-up card a K2 can be upgraded to become a K3 - more power without replacing the entire amplifier. Click here to go to the K Series Step-Up page. 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.

Models

K Series - all models

Model	Total power	Per channel	Channels	Form factor	AoIP
K20 DSP	-	9000 W @ 2 Ω 5200 W @ 4 Ω 2700 W @ 8 Ω	2	1 RU	-
K20	-	9000 W @ 2 Ω 5200 W @ 4 Ω 2700 W @ 8 Ω	2	1 RU	-
K10 DSP	-	6000 W @ 2 Ω 4000 W @ 4 Ω 2000 W @ 8 Ω	2	1 RU	-
K10	-	6000 W @ 2 Ω 4000 W @ 4 Ω 2000 W @ 8 Ω	2	1 RU	-
K6 DSP	-	3600 W @ 2 Ω 2500 W @ 4 Ω 1300 W @ 8 Ω	2	1 RU	-
K6	-	3600 W @ 2 Ω 2500 W @ 4 Ω 1300 W @ 8 Ω	2	1 RU	-
K3 DSP	-	2800 W @ 2 Ω 2600 W @ 4 Ω 1400 W @ 8 Ω	2	1 RU	-
K3	-	2800 W @ 2 Ω 2600 W @ 4 Ω 1400 W @ 8 Ω	2	1 RU	-
K2 DSP	-	2400 W @ 2 Ω 1950 W @ 4 Ω 1000 W @ 8 Ω	2	1 RU	-
K2	-	2400 W @ 2 Ω 1950 W @ 4 Ω 1000 W @ 8 Ω	2	1 RU	-

Features

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
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 airflow
Temperature forecast with LCD traced historical behaviour
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
AES3 digital input *
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
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

Specifications

Output power per channel
Output power per channel	2400 W @ 2 Ω	1950 W @ 4 Ω	1000 W @ 8 Ω
Bridge mode	4800 W @ 4 Ω	3900 W @ 8 Ω
Max output voltage / current
Single channel mode	140 Vpeak / 102 Apeak
Bridge mode	280 Vpeak
AC main power
Power supply	Universal, regulated switch mode with PFC (Power Factor Correction)
Nominal power requirement	100-240 V ±10%, 50-60 Hz
Operating voltage	90 V - 264 V
Power consumption / current draw
Idle	115 V: 69 W - 1.2 A	230 V: 88 W - 1.35 A
1/8 of max output power @ 4 Ω	115 V: 609 W - 6.3 A A	230 V: 609 W - 3.1 A
1/4 of max output power @ 4 Ω	115 V: 1219 W - 11.4 A	230 V: 1219 W - 5.7 A
THERMAL
Operating temperature range	0° - 45° C - 32° - 113° F
Thermal dissipation*
Idle	115 V: 382 BTU/h - 96.3 kcal/h	230 V: 382 BTU/h - 96.3 kcal/h
1/8 of max output power @ 4 Ω	115 V: 722 BTU/h - 181.9 kcal/h	230 V: 722 BTU/h - 181.9 kcal/h
1/4 of max output power @ 4 Ω	115 V: 1062 BTU/h - 267.6 kcal/h	230 V: 1062 BTU/h - 267.6 kcal/h