The SIGNATURE KS3.0 is a very compact bi-amplified active nearfield monitor system with performances comparable to much larger systems. The SIGNATURE KS3.0 is a high precision device with excellent efficiency and low distortion providing a very precise stereo imaging.

SIGNATURE KS3.0 contains a twoo 6.5” neodymium long excursion and low distortion bass cone driver (LF) and a 1” fabric dome tweeter (HF) loaded by an advanced waveguide. The KS3.0 built-in electronics package features a new lightweight, two channel class D audio power amplifier designed specifically for Self-Powered products.The amplifier module is a sophisticated switch mode power supply, class-D amplifier design capable of delivering more than 650W RMS (500W@4 ohm Low, 150W@8 ohm Hi) and adding only 2kg to the weight of the cabinet..

It incorporates a complete networked 96KHz digital signal processing (DSP) providing loudspeaker specific filtering, EQ, delays and protection functions. Sophisticated amplifier protection systems continuously monitor all aspects of performance to ensure that the amplifier and associated drivers are always working within their safe operating areas.

Key features 
  • High efficiency
  • Low distortion
  • Precise stereo imaging
  • FIR filtering

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Frequency response (1):  40-21'000HZ +-3dB

Phase response: 350Hz - 18KHz +-10°

Maximum peak SPL (2):   123dB

Coverage :  H 120° x  V 80°


Low frequency:   2x 6.5 inch, Neodymium long excursion, low distortion cone driver

High frequency:   1x 1 inch dome tweeter, fabric diaphragm loaded with Audio Performance waveguide


Output power (low) (5):   500W RMS

Output power (high) (5):  150W RMS

THD, DIM, SMPTE:   <0,05%

Audio Input 

Type:   Analog Differential balanced input circuit / AES

Connectors:    Female XLR; Male XLR loop (Analogue)

Nominal impedance:   10K Ohm

AC Power 

Connectors:   PowerCON TRUE1

Input voltage:  115V - 230V nominal +/- 10%

Input voltage selection:  Automatic


Sampling rate:   96 KHz

Basic delay:   0.76 ms

Dynamic range:   115dB


Cabinet Size (WxHxD):   207 x 500 x 340mm, 5° tapered

Cabinet finish:   15mm plywood, rounded edges and corners, hard-wearing painted in white

Weight:   15Kg

Elements & Accessories 
  • HCSUB115-amp
  • HCSUB112-amp

(1) Frequency response: +/- 3dB, measured at 3 meters, on axis, half-space conditions -  MLSSA 1/3 octave

(2) Max peak SPL: Measured with music referred to 1 meter

(3) Crossover: Acoustical crossover frequency - at these frequency, transducers produce equal sound pressure level

(4) AES: Power handling is measured under AES standard conditions

(5) Power AMPS: Amplifier RMS output power per channel into 2 ohms, both channel driven