Question about Car Amplifiers

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Subs and amp problem

  • These are the details on the amp:
  • 525 watts x 2 at 2 ohms
  • 1050 watts X 1 in Bridged mode
  • variable 50-250 Hz high-pass/low-pass crossover, 24 dB/ octave
  • Punch Bass boosts bass up to 18 dB (wired remote control included for fingertip control)
  • Preamp outputs

    And these are the details on the subs:

  • Speaker Type Passive
  • Speaker Diameter 12"
  • Nominal (RMS) Output Power 400 Watt
  • Max (RMS) Output Power 800 Watt
  • Response Bandwidth 25 - 500 Hz
  • Input Impedance 1/4 Ohm
  • Sensitivity 86.7 dB
  • Connectivity Technology Wired
  • Additional Features Dual voice coil
    By the way the subs are: kickers cvr 12
    And the amp is Rockford Fosgate Power 1050 S
  • Posted by on

    • ragonamuffin May 11, 2010

      What exactly is your problem? you seemed to skip right over the problem. how many subs do you have?

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    2 subs and 1 amp

    Posted on Nov 19, 2008


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    DUB2502 550w 2-channel a/b mosfet amplifier 1000 watts maual


    not 550 watt,,250 x 2 ,,
    • 2-Channel Class-A/B Amplifier
    • RMS Power (4 ohms): 250 watts x 2 chan.
    • RMS Power (2 ohms): 375 watts x 2 chan.
    • Bridged RMS Power: 500 watts x 1 chan.
    • Min. Impedance Unbridged: 2 ohms
    • Min. Impedance Bridged: 4 ohms
    • Brushed Aluminum Chassis
    • Top Mount Controls with Blue Illumination
    • Cooling Fan
    • Chrome DUB Fan Grille
    • Glass Epoxy Circuit Board
    • PWM MOSFET Power Supply
    • THD: 0.02%
    • S/N Ratio: 95 dB
    • Input Sensitivity: 200mV - 4V
    • Frequency Response: 10 Hz - 40 kHz
    • Variable 18 dB/Oct. Hi-Pass / Low-Pass Crossover: 50 - 250 Hz
    • Bass Boost: On/Off 12 dB
    • 4-Way Protecion: Thermal, Short Circuit, Overload, and DC Offset
    • Dimensions: 8-1/4" W x 2-1/8" H x 10-3/4" L
    • Authorized Internet Dealer

    Audiobahn DUB2502 2 Channel 250W 2 Class Amplifier at Onlinecarstereo com

    http://www.audiobahn.com/index.php/help/tech-support/manuals/category/1-amplifiers

    Feb 26, 2014 | AudioBahn DUB Mag Audio DUB2502 Car Audio...

    2 Answers

    Whats the specs


    • Bridged Max Power: 520 Watts
    • RMS Mono: 170
    • Variable Low Pass 40Hz-120Hz
    • Variable Hi Pass 150Hz-1.5Khz
    • THD: 0.02%
    • Die-Cast Aluminum Heat Sinks

    Sep 20, 2010 | Power Acoustik XL2-520 SPL Car Audio...

    1 Answer

    Is it bridgeable


    yes you can bridge this amp to one channel
    here are the specs for the amp
  • stereo or bridged mono output
  • Tri-way capable (Tri-Way crossover required)
  • 100 watts x 2 at 2 ohms
  • 200 watts x 1 in bridged mode
  • requires 10-gauge power and ground leads — wiring and hardware not included with amplifier
  • PWM MOSFET switching power supply
  • Intelligent Surface Mount Technology for cleaner sound and greater reliability
  • selectable 85 Hz high-pass/low-pass crossovers, 18 dB/octave
  • preamp outputs
  • speaker-level inputs with SmartEngage (turns the amp on when it detects signal from the receiver, eliminating the need for a separate turn-on lead from your receiver)
  • 9-3/4"W x 2-1/8"H x 9-3/4"D
  • Feb 06, 2010 | MTX Thunder 4202 Car Audio Amplifier

    1 Answer

    No manual for my amp.


    • Class-D Monoblock Amplifier
    • Bass Boost Level and Frequency Remote Included
    • Variable Low-Pass Filter: 50 - 200 Hz (24 dB/Oct.)
    • Variable Input Sensitivity: 200mV - 5V
    • Phase Shift: 0° / 180°
    • Variable Infrasonic (Subsonic) Filter: 0/15Hz/25Hz (18 dB/Oct.)
    • High- and Low-Level Inputs
    • 1 Ohm Stable
    • RMS Power Output:
      • 500 watts x 1 chan. @ 4 ohms
      • 900 watts x 1 chan. @ 2 ohm
    • Preamp Outputs: 1 Pair
    • Bass Boost: 0 - 18 dB @ 40 - 100 Hz (Variable)
    • Dimensions: 15" L x 11-5/16" W x 2-3/8" H

    Oct 05, 2009 | Kenwood KAC-9152D Car Audio Amplifier

    1 Answer

    The subs aren't pushing out bass.


    Hello crobins2,

    The Kenwood KAC-6202 2-channel is only rated for 60 watts RMS per channel into a 4 ohm load. That just isn't much power for a pair of 12" subs. Even the bridged output is only 200 watts into 4 ohms, still at the low end for a sub, much less to share between a pair of subs.

    Assuming that your subs are 4 ohm, you could probably get more sound by driving just one of them on the bridged terminals. But to get the best power with what you have, connect one sub to each channel, set the filter switch to the far right (LPF), set the operation switch to stereo (both channels driven), set the filter frequency (Hz) to 100 or lower, and adjust the input sensitivity as far clockwise as possible without causing distortion.

    But, to do the subs justice, you really need at least 300-400 watts to share between them.

    Hope this helps.

    Sep 27, 2009 | Kenwood KAC-6202 Car Audio Amplifier

    1 Answer

    Power acoustik gothic OV2 800 manual


    Could not get a manual for you but did get the follwing specs. Hope they help.

    Power Acoustik Ov2-800 2-Channel Class A/B Gothic Series Amplifier (800-Watt)
    POWER ACOUSTIK OV2-800 2-CHANNEL CLASS A/B GOTHIC SERIES AMPLIFIER

    800-WATT 2-CHANNEL
    4 ohm RMS: 150W X 2
    2 ohm RMS: 180W X 2
    Bridged mode MONO RMS: 360W
    BRIDGED MAX: 800W
    FULL MOSFET POWER SUPPLY
    PWM CIRCUITRY
    FULL SELECTABLE CROSSOVER
    3-WAY PROTECTION CIRCUIT
    TRI-MODE CAPABLE
    VARIABLE LOW PASS 40 HZ - 120 HZ
    VARIABLE HIGH PASS 150 HZ - 1.5 KHZ
    VARIABLE 18 DB BASS BOOST @ 40 HZ
    FREQ RESP: 10 HZ TO 30 KHZ
    S/N RATIO: 98 DB
    THD: 0.02%
    2 ohm STABLE STEREO
    SYSTEM DISTRESS INDICATOR
    HIGH/LOW LEVEL INPUTS WITH FLOATING GROUND
    4-GAUGE POWER/GROUND CONNECTION
    PLATINUM RCA CONNECTORS
    LINE OUTPUT WITH FLOATING GROUND

    BLUE LED
    CHROME TOP PLATE PANEL 2-CHANNEL CLASS A/B GOTHIC SERIES AMPLIFIER (800-WATT)

    Aug 18, 2009 | Power Acoustik GOTHIC OV2-800 Car Audio...

    1 Answer

    Not a problem just a question


  • 100 watts RMS x 2 at 4 ohms
  • 200 watts RMS x 2 at 2 ohms
  • 400 watts RMS x 1 at 4 ohms in bridged mode
  • stereo or bridged mono output
  • 4-ohm stable in bridged mode
  • Tri-Way capable
  • requires 8-gauge power and ground leads — wiring and hardware not included with amplifier
  • 50-250 Hz high-pass/low-pass (12 dB/octave) crossovers
  • wired remote included for fingertip control of Punch Bass (0-18 dB boost at 45 Hz)
  • MOSFET power supply and output devices
  • MEHSA mounting technology increases the heat transfer from the MOSFET output devices to the heat sink, for higher power output, lower operating temperatures, and greater reliability
  • TOPAZ — noise-killing differential inputs that eliminate 80% of ground loop noise
  • Trans•ana circuitry keeps preamp voltages low and signal paths simple for outstanding audio quality
  • NOMAD — advanced protection circuitry for "intelligent" shutdown protection
  • speaker- and preamp-level inputs
  • 11-1/8"W x 2-3/8"H x 9-7/8"D


  • Wire your sub in bridged mode (4 ohm mono)
    + to + on amplifier
    - to - on amplifier
    (using bridging terminals)

    Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

    Apr 25, 2009 | Rockford Fosgate Punch 401S Car Audio...

    1 Answer

    How do i bridge 3 subs to a 4 channel amp


    My information shows the XM-1652Z as being a 2-channel amp. It will not be stable below 4-ohms in bridged mode. For best power, your subs will need to be 2-ohms with all 3 wired in series. This will present a 6-ohm load to the amp. After wiring the subs in series, connect the positive speaker wire to one channel (+) and the negative speaker wire to the other channel (-). For the 1652Z no other wiring is necessary. For subs you will also want to set the LPF (80Hz) switch to the "ON" position (to the right).

    Keep in mind that the rated output is only 400 watts RMS at 4-ohms in bridged mode. That's kinda wimpy for 3 subs. You would probably obtain better results from two 2-ohm subs, each connected to a separate channel. That way each sub would be getting 200 watts RMS, still low but there's lots of good subs that will sound pretty loud with 150-200 watts

    Mar 25, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

    1 Answer

    Do you have instructions for wiring install on volfenhag GX8200??


    Amplifier Class AB
    Number of Channels 2
    RMS Power (4 ohms) 120 watts x 2 channels
    RMS Power (2 ohms) 200 watts x 2 channels
    RMS Power (1 ohm) Not Stable
    Bridged RMS Power 400 watts x 1 channel
    Total RMS Power Output 400 watts
    Peak Power Output 1000 watts watts x 1 channel
    Minimum Impedance Unbridged 2 ohms
    Minimum Impedance Bridged 4 ohms
    THD at Rated RMS Power 0.1%
    Speaker Level Inputs No
    Preamp Outputs 1 pair
    Built-in Crossover High-pass (HP), Low-pass (LP), Full (AP)
    High-Pass Crossover Frequency 40 - 250 Hz
    Low-Pass Crossover Frequency 40 - 250 Hz
    Subsonic Filter N/A
    Signal-to-Noise Ratio N/A
    Channel Separation N/A
    Bass Boost 0 - 18 dB
    Bass/Gain Remote Yes
    Fan Cooled Yes
    Fuse Rating 20A x 2

    Dec 24, 2008 | Volfenhag ZX-8200 Car Audio Amplifier

    1 Answer

    How should I wire up this amp and sub


    The amp's not actually a very good match for the sub, since the sub can be wired for 2 ohms or 8 ohms, and the amplifier is most efficient at 4 ohms in bridged mode. My advice would be to wire the amp in bridged mode, and wire the sub for an 8 ohm load. To do this, the amp's (+) wire should go to the (+) terminal on one of the sub's voice coils. Then run a wire from the (-) terminal on the OTHER voice coil to the (-) terminal on the amp. The remaining (+) and (-) terminals (on opposite voice coils) should be connected to each other with a wire. Your original wiring setup had the amplifier connected to only one voice coil, while the other voice coil was shorted.

    Jun 10, 2007 | Kole audio Q2-480 Car Audio Amplifier

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