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Mono Amplifier: The MTX TD500.1D is designed with
specific features to power your subwoofer or subwoofers with a frequency range
between 20 to 220 Hz. This amplifier is not designed to power a full-range
THD: The Total Harmonic Distortion isn't given at the rated
power output, therefore it isn't listed in the specifications table. The manual
does list THD as <0.3% at 30% of rated power (90 watts) into a 4-ohm load.
Protection Circuits: The TD500.1D provides protection against
over heating, output short-circuit, and over/under power supply voltage.
Gain: The rotary gain control is continuously variable from
200 mV to 5 V.
Bass Boost: A three position switch adjusts the amplifier's
bass boost; set to 0, +6 dB, or +12 dB. The boost is centered at 50 Hz.
Low Pass Crossover: The TD500.1D features a 12 dB/octave low
pass crossover, continuously variable from 40 to 220 Hz. The crossover is always
engaged (it cannot be bypassed).
Sub-Sonic Filter: The amp features a 12dB/octave sub-sonic
filter, adjustable from 10 to 50 Hz. Ultra-low frequencies that cannot be reproduced
by the subwoofer do not become sound but unnecessary oscillations, which affect sound
by causing distortion. These frequencies also waste amplifier power and can cause
damage to the speakers. The sub-sonic filter removes the frequencies below the
frequency setting to improve the performance of the speakers by eliminating harmful
Power/Ground/Turn-On: The TD500.1D features screw terminals
for power, ground and remote turn-on. The power and ground terminals will accommodate
spade connectors up to 0.5" wide, while the Remote turn-on terminal will
accept a spade connector up to 0.335" wide.
Warranty Note: MTX will add a year
to the standard one year warranty (for a total of two years) when an
appropriate StreetWires amplifier wiring kit is used with this amp (4 gauge
minimum). In this case, the StreetWires kits include a 150 amp fuse, which
should be replaced with a 60 amp fuse (item number
211FAFS60, sold separately) to match the requirements for this amp.
Both the amp and wiring kit should be purchased on the same order and the
usual warranty limitations apply (covers manufacturing defects, must be
purchased from an authorized MTX dealer, etc.).
Line Level Input: The signal is input using the stereo RCA
Speaker Connections: The amplifier is equipped with two pair
of speaker terminals, internally shorted together, making it easy to
connect two subwoofers. They are screw terminals and will accommodate spade
connectors up to 0.335" wide.
EBC: There is a 3.5mm EBC (External Bass Control) jack on the
amp, but as of 4/22/12 a compatible wired remote has not been released.
5 Year Warranty Terms: This product carries a 5-Year
Prorated Warranty with the following terms:
- Years 1-2: Products found to be defective in materials
or workmanship during the first two years will be, at Mitek's option,
repaired or replaced by Mitek at no charge. The warranty period does not
renew, but continues on from the original date of purchase.
- Years 3-5: The purchase price of an item which becomes
defective after the first two years and prior to the end of the warranty
period will be prorated and credited toward the purchase of a new MTX
product. The amount of proration is determined by dividing the original
purchase price by the number of months in the warranty period (60), then
multiplying the result by the number of months remaining in the warranty