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Standard Features
Forced Convection Cooling
All Xtant “X” Series amplifiers employ forced convection cooling for thermal
management* An on+board thermal sensing circuit regulates fan speed to maintain
optimum operating temperature*
Fully Regulated PWM Power Supply
All Xtant “X” Series amplifiers feature a Fully Regulated, Pulse Width Modulated
power supply* This supply technology provides high efficiency and consistent output
performance even when battery voltage is less than optimum*
Crossover
A $!/!"dB filter network with selectable Bypass (Full Range), High Pass, Low Pass
or Bandpass modes of operation* Frequency selection is via a $! pin Frequency SIP*
The amplifier is shipped with a &( Hz SIP installed, $' other frequencies are available
from your Xtant Dealer*
Noise Gate
Provides deep muting when no musical signal is present* Features include adjustable
threshold and bypass switch*
Balanced / Floating Input
When enabled, this circuitry helps to eliminate “system noise” associated with
“ground loops”* When combined with the input sensitivity adjustment, it allows the
X%(" to accept up to $#V of input signal* Balanced must be used for BTL inputs using
the HLA*
Modular Expansion Port
All X series amplifiers are supplied with a modular port(s) used for docking any of
Xtant’s signal processing modules*
Protection Circuitry
Both Thermal, Overcurrent and Low Voltage protection are incorporated into the
X%("* In the event of a problem, the amplifier will reduce its power to maintain
operation* In the case of Low Voltage, the amplifier will shut off when the battery
voltage falls to $$ Volts or less*
Passive Output
The RM- Resistor Module is designed to activate the “passive speaker terminals*” It
provides -dB of attenuation for speakers connected to these terminals* RM", RM$! and
RM$% also available*
NOTE:
Passive outputs are connected in parallel with front channels*
Service Jumper
Removing the jumper will turn+off amplifier when remote turn+on, ground, and .$! volt
cables are connected to amp* Use to service the amplifier or to make any adjustments*
Status LEDs
Four LEDs, visible through the cover, indicate operational status of all Xtant amplifiers* The
red LED illuminates when the amplifier is “ON”, the yellow LED indicates that overcurrent
protection is engaged, the orange LED indicates that the thermal protection circuit is
engaged, and the green LED indicates when the noise gate is engaged and operational*
English
Xtant X604 Specifications
Frequency Response: !( Hz to !( kHz ./– $ dB
Number of Channels: "
Watts per Channel @ "Ω: " x #)
Watts per Channel @ !Ω: " x $)(
Bridged Mono @ "Ω: ! x '((
Recommended Load: 1!Ω Stereo / 1"Ω Bridged
Distortion (THD): 2 *!3
Measured: !( Hz to !( kHz at rated power, all channels driven "Ω
Signal to Noise Ratio: 1 $(( dB
Measured: A+weighted in !( kHz noise bandwidth @ $ volt sensitivity
Damping Factor: 1 !(( @ $(( Hz with "Ω load
Input Sensitivity: $(( mV to -*) V RMS Unbalanced Source
$(( mV to $# V RMS Balanced Source
Input to Line Output Gain: ( dB ./– !( dB, Selectable in $( dB steps
On+Board Crossover: $!/!" dB/Octave Selectable (!)
Module Port(s): " – Accessory
Balanced Line: ! – On Board
Passive Outputs: ! Channels; RM- provided
Power Supply: Fully Regulated, PWM
Operational Voltage: $$ to $) Volts
Fusing Requirement: $!( Amp
Size (L xW x H): !')/-” x $( &/'!” x !)/'!”
%((mm x !%$mm x )"*)mm
Warranty: Limited " Year Parts and Labor
English
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