MTX Thunder TH1200.1D User manual

TH1200.1D
Mono Block Class D Power Amplifier
Designed by MTX in the USA
www.mtx.com

mtx.com
English
Introduction
Thank you for purchasing an MTX Audio Hi-Performance amplifier. Proper installation matched with MTX speakers
and subwoofers provide superior sound and performance for endless hours of enjoyment whether you are waking
the neighbors or just out enjoying your tunes. Congratulations and enjoy the ultimate audio experience with MTX!
Specications
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Control Panel
Owner’s Manual - TH1200.1D

Control Panel
Gain Control (GAIN) : The gain control matches the input sensitivity of the amplifier to the source unit being used.
The operating range varies from 250mv to 5V.
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 clip light illuminates and then reduce until light turns off.
4. Adjust the gain control down until audible distortion disappears.
5. The amplifier is now calibrated to the output of the source unit.
Bass Boost Control (BASS BOOST) :
Allows user to adjust the bass boost between 0dB - 12dB at 40Hz.
Subsonic Filter Control (SUB SONIC) :
Used to select the desired subsonic filter frequency. The frequency is adjustable from 20Hz to 50Hz.
Low Pass X-Over Frequency Control (LPF) :
Used to select the desired low-pass (LP) x-over frequency. The frequency is adjustable from 40Hz to 200Hz..
RCA Inputs (INPUT) : These RCA inputs are used with source units that have either RCA/Line level or speaker level
outputs. (Source units need a minimum level of 250mV output for proper operation of the amplifier).
MTX recommends only high quality twisted pair cables (such as StreetWires) to decrease the possibility of radiated
noise entering the system.
EBC Port (External Bass Control) : The EBC plugs directly into this port, and the EBC should be plugged in and set
to Max if used while setting gain. While the EBC itself can be placed anywhere in the vehicle for on demand bass
adjustments. EBC is included.
LED Indicators : Your TH amplifier is equipped with 3 LED indicators, Power, Protect, and Clip.
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thermal incident (see Troubleshooting).
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has reached its RMS power output based on the attached speaker load (impedance). If this LED is illuminated
the amplifier is running outside of its recommended configuration and requires adjustment. For optimal
performance, the gain should be reduced until this LED light turns off.
Speaker Terminals (SPEAKER) : Connect speakers to these terminals. Observe speaker polarity throughout the
system. Improper phase can result in loss of bass response and/or poor overall sound quality.
Ground Terminal (GND) : A proper ground is required for your amplifier to operate at peak performance. A short
ground cable the same diameter as the power cable should be used to attach the ground terminal directly to the
chassis of the vehicle. Always remove paint, dirt or debris to expose bare metal where the ground will be attached.
Power Terminal (#"55 : This is the main power input for the amplifier and must be connected directly to the
positive terminal of the vehicles battery for proper operation. Use caution when installing (+12) power cable in the
vehicle. Avoid running this cable parallel with RCA cables, antennas, or other sensitive equipment due to massive
currents that can induce noise into the audio system. It is also very important to have a tight, secure connection for
maximum performance. MTX recommends using 1/0 AWG power wire with the MTX TH1200.1D amplifier.
Remote Terminal (REM) : The amplifier is turned on by applying 12 volts to this terminal. Typically this voltage is
supplied by a wire from the source unit marked “remote” or “power antenna”.
Fuses (FUSE) : If the fuse blows, replace with the same value. Never use a higher rated fuse!

mtx.com
English
Owner’s Manual - TH1200.1D
Installation & Mounting
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Troubleshooting
Problem Cause Solution
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MTX is proud to be an American Audio Company.
© 2011 Mitek. All rights reserved
MTX, COUSTIC, XTANT, STREETWIRES and THUNDER
are registered trademarks of Mitek
Due to continual product development, all
specications are subject to change without notice.
MTX004237 12/11
NDM645
Mitek - MTX
4545 East Baseline Rd. Phoenix, AZ 85042, USA
MTX is a proud member of Mitek Corp high
quality consumer audio product lines.

Mitek Mobile Limited Warranty
Our Guarantee
Mitek Mobile products (including MTX, Streetwires, Coustic and Magnum) purchased in the USA after
1/1/2013 from an authorized Mitek retailer are guaranteed to be free from material defects in products
and workmanship for five (5) years to the original end user purchaser, subject to the terms and conditions
below.
Length of Limited Warranty and Remedy
The warranty period begins the day the product is purchased by the end user, and is limited to the original
retail purchaser of the product.
Free Replacement Period (2 Years)
Products found to be defective in materials or workmanship during the first 2 years will be, at Mitek's
option, repaired or replaced by Mitek at no charge. When a product is replaced during first 2 years, the
warranty does not renew, it continues on from the original date of purchase.
Proration Period (Years 3-5)
The prorated purchase price of any product which becomes defective after the first two years and prior to
the end of the warranty period may be credited toward the purchase of a new Mitek product. The amount
of the proration shall be determined by dividing the purchase price by the number of months of the
warranty period (60), and then multiplying the result by the number of months remaining in the warranty
period. Any partial months will be rounded to the nearest whole month. For example, a product purchased
37 months ago for $100 would be calculated by dividing $100 by 60 months = $1.66/month, multiplied by
23 (the months remaining in the warranty period) for a prorated warranty amount of $38.33.
You are responsible for all costs for removal, reinstallation and proper packaging, shipping, insurance or
other freight charges incurred in the shipment of the product or part to Mitek. Mitek will ship the repaired
or replaced Mitek product or replacement parts to you at no charge. Mitek reserves the right to utilize
reconditioned, refurbished, repaired or remanufactured products or parts in the warranty repair or
replacement process. Such products and parts will be comparable in function and performance to an
original product or part and warranted for the remainder of the original warranty period.
What Is Not Covered
This warranty does not cover the product if it has been subject to neglect, abuse, misuse, incorrect
connection, or if it has been subject to unauthorized repair or alterations of any nature, or if the serial
number has been altered or removed, and the warranty does not extend to cosmetics or finish. This
warranty only applies to products installed and used in the USA.
What You Must Do to Obtain Warranty Service
You must contact Mitek Warranty via our website at MTX.com, or via email at
[e-mail], or by calling 800-556-2888. If you did not purchase the product directly from
Mitek, a proof of purchase must be provided in order to receive warranty consideration. You will be issued
a Return Authorization (RA) number which must be written on the outside of the package before returning
the product to Mitek.

No Other Warranties
THE LIMITED WARRANTIES DESCRIBED ABOVE ARE EXCLUSIVE AND IN LIEU OF ANY OTHER
WARRANTIES, EXPRESS OR IMPLIED. MITEK DISCLAIMS AND EXCLUDES ALL OTHER EXPRESS
WARRANTIES, AND DISCLAIMS AND EXCLUDES ALL WARRANTIES IMPLIED BY LAW, INCLUDING
WITHOUT LIMITATION THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. TO THE EXTENT THAT APPLICABLE LAW PROHIBITS THE EXCLUSION OF IMPLIED
WARRANTIES, THE DURATION OF ANY APPLICABLE IMPLIED WARRANTY IS LIMITED TO THE
PERIOD SPECIFIED FOR THE EXPRESS WARRANTY. Some states do not allow limitations on how
long an implied warranty lasts, so the above limitation may not apply to you. Any oral or written
description of any Mitek product is for the sole purpose of identifying it and shall not be construed as an
express warranty.
Limitation of Liability
MITEK'S OBLIGATION TO PROVIDE A CREDIT, OR REPAIR OR REPLACE AT MITEK'S OPTION,
SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY UNDER THIS LIMITED WARRANTY AND
MITEK'S SOLE AND EXCLUSIVE OBLIGATION. MITEK SHALL NOT BE LIABLE FOR INCIDENTAL,
INDIRECT, CONSEQUENTIAL OR SPECIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH
THE MITEK PRODUCT, ITS USE OR PERFORMANCE. Incidental damages include, but are not limited
to, such damages as loss of time and loss of use. Consequential damages include, but are not limited to,
the cost of repairing or replacing other property which was damaged if the Mitek product does not work
properly.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may
also have other rights, which vary from state to state. This limited warranty supersedes all prior warranties
and is not transferable from the original consumer purchaser.
Any assistance Mitek provides to or procures for you outside the terms, limitations or exclusions of this
limited warranty will not constitute a waiver of such terms, limitations or exclusions, nor will such
assistance extend or revive the warranty. Mitek will not reimburse you for any expenses incurred by you
in repairing or replacing any defective product, except for those incurred with Mitek's prior written
permission.