
REFLEX HOLES
HANDLE FIXING EXTERNAL
(OPTIONAL) HANDLE
FASTENING THE
THREADED INSERT
BRACKET (M8)
30° PLANE
AMPLIFIER
WOOFER 6,5” DOME 1”
FASTENING THE
THREADED INSERT
BRACKET (M8)
COMMANDS AND FUNCTIONS
1) “VOLUME” CONTROL
The knob regulates the diffuser's volume.
This control does not affect the output “LINK” levels.
2) “LIMITER” INDICATOR LIGHT
The “LIMITER” indicator light comes on red during start (for a few seconds) and
when the internal audio limiter engages. This avoids the amplifier's distortion and
protects the loudspeakers against overloads.
3) SENSITIVITY SWITCH
Position the switch in LINE to use a line level source (0 dB) or MIC to use a
microphone.
4) “READY” INDICATOR LIGHT
The “READY” indicator light comes on green to indicate that the amplifier is switched
on and it is working properly.
5) “BALANCED INPUTS LINK” CONNECTORS
These balanced inputs can be used to connect balanced or unbalanced
microphones or audio sources at line level (0dB) (eg. preamplifier, mixer, recorder,
CD player, musical instrument, ...).
The balanced connector is connected in parallel and can be used to send the audio
signal to other amplified speakers, recorders or supplementary amplifiers.
7) POWER SWITCH “POWER”
This switch can be used to switch the diffuser on and off.
8) FUSE CARRIER “FUSE”
Mains fuse housing.
9) POWER CABLE SOCKET “MAINS”
Used for connecting the power cable supplied.
6) “STEREO CD-AUX” INPUT CONNECTORS
Through the RCAphono connectors, this input permits easy connection of CD, DAT,
cassette players, etc.... .
TECHNICAL SPECIFICATION
EnglishEnglishEnglish
4
3
EnglishEnglishEnglish
user manualuser manual
DESCRIPTION
The K300 speaker uses a digital amplifier of DIGIPRO ® series of next generation with
cutting edge power to 120W.
These highly efficient amplifiers provide high power with limited weight and dimension.
Thanks to the low power dissipated, the cooling of the amplifier module does not require a
fan.
The digital preamplifier with DSP (Digital Signal Processing) controls the audio crossover
of the acoustic components, the frequency response, the limiter, and the phase alignment.
The correct switch on of the amplifier is ensured by an initialization procedure; during this
test stage the LEDs ( LIMITER ), located on the amplifier module, remain
off for approx. 2 sec.
At the end of the switch on procedure, on the amplifier module, the READY green LED
blinks slowly, in the absence of the signal.
During normal operation the "READY” green LED blinks according to the song / sound
reproduction in use.
“ ” and “READY”
“”
PUSH
MAX
0
dd
BB
TECHNOLOGIES
VOLUME
LIMITER
READY
MIC-40dB
LINE-3dB
BALANCED
INPUTS
LINK
1
2
3
1= GND
3= COLD
2= HOT
FUSE MAINS
LEFT RIGHT
STEREO CD - AUX
INPUTS
POWER
ON
LINE
MIC
2
1
3
SERIALNUMBER
100-120V~ 50-60Hz
220-240V~ 50-60Hz
(FUSET1A 250V~)
(FUSET500mA 250V~)
MODULEPOWER
CONSUMPTION
160WMAX
“CAUTION”
TOPREVENT ELECTRICAL SHOCK
DONOT REMOVE COVER
“AVIS”
RISQUEDE CHOCH ELECTRIQUE
NEPASOUVRI R
Internalvoltage setup
SERIESSERIES
300300
DIGITALBIAMP ACTIVE SPEAKER
REVISION
OO
II
TECHNICAL FEATURES K300
System Active Bi-ampli
Amplifier type class D
RMS power 80W (BF) + 40W (HF)
Frequency response 70 -19000Hz
Crossover 1650 Hz 24dB/oct.
Sound pressure (SPL) 113 dB max
2x6,5” woofer - 1,5” voice coil Neodimio
1x1”driver - 1” voice coil Neodimio
Input sensitivity LINE/MIC -40dBu / 0dBu (switch)
Impedance LINE/MIC LINE/MIC
Balanced 30KW/1K2W
Unbalanced 15KW/600W
KW
Power supply
Weight 5,5Kg
Components
Input sensitivity RCA -10dBu
Impedance RCA 22
110-120Vac 50-60Hz
220-240Vac 50-60Hz
Dimension (LxHxP) 210x350x270mm
Contact dB Technologies for accessories to be used with speakers.
Will not accept any responsibilty when inappropriate accessories or not suitable additional
devices are used.
SAFETY INSTRUCTIONS FOR ACCESSORIES
EMI CLASSIFICATION
According to the standards EN 55103 this equipment is designed and suitable to operate in
E3 (or lower E2, E1) Electromagnetic environments.