Астомобильный усилитель мощности MTX TH904. Инструкция на русском языке

TH904
4 Channel Class-AB Power Amplifier
600W RMS
Designed by MTX in Phoenix, USA
www.mtx.eu.com
www.mtx.com

www.mtx.com - www.mtx.eu.com
Introduction
Owner’s Manual - TH904  Thank you for purchasing an MTX Audio Hi-Performance amplifier. Proper installation matched with MTX speak-
ers and subwoofers provide superior sound and performance for endless hours of waking the neighbors, slam-
min' your friends or flat out stomping wanna-be players. Congrats and enjoy the ultimate audio experience with
MTX !
Specifications :
• 4-Channel Class-AB amplifier
• CEA2006 certified Power Output :
- 150 watts RMS x 4-channels at 2 ohm and THD+N ?1%
- 90 watts RMS x 4-channels at 4 ohm and THD+N ?1%
- 300 watts RMS x 2-channels at 4 ohm and THD+N ?1%
• Crossover :
- High pass 12dB/oct variable from 40Hz to 8000Hz
- Low pass 12dB/oct variable from 40Hz to 8000Hz
- Band pass 12dB/oct variable from 40Hz to 8000Hz
• Signal-to-Noise Ratio (1 watt) : > 81dB
• THD+Noise (Distortion) (1 watt) : ? 0,25%
• Frequency Response (±1dB) : 20Hz-20000Hz
• Maximum Input Signal : 6V
• Maximum Sensitivity : 100mV
• Dimensions : 383mm x 213mm x 52,5mm
• High level inputs with Smart Engage Technology
Features :
• XTC - (Xtant Technology Cooling) - A regulated thermal intercooler, injecting cool air through internal heat
sinks. Fan speed is load dependent and continuously variable, sampling the temperature of the heat sink and
transformers for maximum reliability. Intercooler exhaust is strategically placed to chill transformers and main-
tain exceptional performance at any volume level. (Cool eh ? An Amp with an Intercooler ! )
• Pure N-Channel Design - Patent N°: US05631608 and N°: US05783970 - MTX amplifiers incorporate N-
Channel MOSFETs on both the positive and negative circuits of the output stage (PURE N-Channel Design). No
additional circuits are needed to compensate for inefficient designs like P-Channel MOSFETs. Both the positive
and negative circuits have equal usable power ratings. Genuine Genius...Yea we know...
• EAF Technology (Efficient Auto Former) - Patent N°: US05598325 - Our Transformers are "Auto Formers"
which allows us to use smaller magnetics (-30% to -50%) yielding increased efficiency. Turn ratios are improved
due to series connections between the primary and secondary taps meaning MORE Power !
• Smart Engage™ Technology - Patent N°: US06556683 - The amp switches on and off automatically when
connected with high level inputs. No need for a remote turn on wire from under the dashboard. No need to
remove the head unit. Thanks MTX !
• Bi-Level Inputs - High level inputs (Speaker cables) and line level inputs (RCA) utilize the same RCA type input
connections on the amp.

Control Panel (Top)
Connectors Panel (Side)
Control Panel :
Gain Control - The gain control matches the input sensitivity of the amplifier to the source unit being used. The
operating range varies from 100mv to 6V.
Adjusting the gain
1. Turn the gain control on the amplifier all the way down (counter clockwise).
2. Turn up the volume control on the source unit to approximately 3?4 of maximum.
3. Adjust the gain control on the amplifier until audible distortion occurs.
4. Adjust the gain control down until audible distortion disappears.
5. The amplifier is now calibrated to the output of the source unit.
Low Pass X-Over Switch - Turns the active low pass (LP) x-over on and off. When engaged (in) the x-over is “ON”,
when disengaged (out) the x-over is “OFF”
Low Pass X-Over Frequency Control - Used to select the desired low-pass (LP) x-over frequency. The frequency is
adjustable from 40Hz to 8000Hz.
High Pass X-Over Switch - Used to turn on the active high-pass (HP) x-over on and off. When engaged (in) the
x-over is “ON”, when disengaged (out) the x-over is “OFF”.
High Pass X-Over Frequency Control - Used to select the desired high-pass (HP) x-over frequency. The frequency
is adjustable from 40Hz to 8000Hz..
Band Pass X-Over : To use, turn “ON” the HP and LP x-overs at the same time, creating a band-pass x-over for kick
woofers or midranges. You can tune the filter with frequency controls (3) and (5).
Important Notice: When both x-overs are turned “OFF”, the pre-amp section is in “Direct” mode providing the
best possible sound quality.
Power On LED -  The LED illuminates red when the amp is switched on. For Short or Thermal protection, see
points 9 and 10