Question about Aragon 28K MKII 2-Channel Amplifier

1 Answer

Dual mono? Is the 28 MKII designed and built in a dual mono configuration (with a separate power suply per channel)? Or is it simple stereo?

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  • Fernando Gonzalez
    Fernando Gonzalez May 06, 2007

    power suPPly, that is... :-)

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  • Master
  • 3,130 Answers

If it had dual power supplies, the unit would still have sound on one channel

Posted on Jun 16, 2007

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How to wire 2/1 channel XPE2700 in stereo/bridged mode?


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Wiring a crossfire vr602 at 4ohm


OK what you are saying now is that your speakers are dual voice coil; models? 4 Ohms per Coil? I have always used single 4 Ohm Voice ciol speakers since amps are mostly based on 4 Ohm outputs. but you can get 8 Ohm dual voice coil subs also. With 8 Ohms per coil you can get 4 Ohms if you parallel the wires. What is best for you and will get you the most stable power and still will be in the specs of that amp is to run the amp in BRIDGED MODE running each subs voice coils in series with each other then run those 2 subs in parallel to the amplifier giving it a 4 Ohm load. So, your will have two sets of wires from your amp 1 for each speaker. Then you will take a short piece of wire that will connect the + to the - of each voice coil then hook up the wires from your amp to each sub What it will be is 4 Ohms + 4 Ohms = 8 Ohms per speaker the 8 Ohms in parallel each speaker to the Bridged amp output using just the + from one channel and the - from the other will give you a total of 4 ohms and power out put of 600 Watts so that ends up being 150 watts per voice coil or 300 watts each speaker
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1 Answer

I have a QSC RMX 2450 in which both channels are driven even though the amp is in stereo mode and I am only sending a signal into input channel one. It acts as if the amp is in parallel mode but I have...


My thoughts are that the amp has a poor channel separation but usually you can only hear a very quiet trace of the sound through the undriven channel. I agree with Taurus and make sure that the switch is making contact and moving all the pins to the proper points. This is a Home stereo amp, it comes with an extended 6 year warranty if you register it, I would check into getting a warranty repair before doing anything to it! Looks like a nice quality piece, those dip switches are a little bit confusing but the way it's built it is necessary to have them. It has a Dual Mono amp section so there is no way that any sound can be crossing over unless the swithches are directing it. The only way that can happen is in Parallel or in Mono. You could be in Stereo / Mono which would input both channels and output 3 settings a 1, 2 in Stereo & a Mono, Try hooking a speaker up to the Mono/ Bridge outputs and see if it's louder than just hooked up to 1 or 2. Parallel inputs will give you Mono 1 & 2 with Bridge off, and might give you Mono 1 & 2 with a bridged Mono if the bridge is on, like 3 channels all mono with one getting twice as much power as the 1 & 2 will put out. Although they have it labeled to not use it in those settings it's possible to do. I can see why you would be checking the switches.
It may actually be labeled incorrectly , as strange as it seems, many Chinese products have been made with labeling errors. Plus and minus have been wrong on Asian Made car amps so it's not that inconceivable that this may have some incorrect settings shown?

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1 Answer

Stereo channels do not collapse to mono.


Unfortunately, behringer is not helpful in most cases.

I suggest selling the unit and buying a better product, like mackie.

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1 Answer

Can i hook this amp to a 2 channle out put stereo?


Sure. Specs are listed below. I think it's designed for regular 2-channel input, isn't it?

jturcotte_41.jpg

Front Channels: 100 W RMS x 2 @ 1.5 ohm-4 ohm (11V-14.5V)
  • Rear Channels: 25 W RMS x 2 @ 1.5 ohm-4 ohm(11V-14.5V)
  • Subwoofer Channel: 250 W RMS @ 1.5 ohm-4 ohm (11V-14.5V)
  • THD at Rated Power: <0.03% @ 4 ohm (F&R), <0.05% @ 4 ohm (Sub)
  • S/N Ratio (F&R): >108.5 dB below rated power S/N Ratio (Sub): >95 dB below rated power
  • Frequency Response (front and rear): 5 Hz-30 KHz (+0, -1dB)
  • Frequency Response (sub channel): 5 Hz-500 Hz (+0, -1dB)
  • Damping Factor (front and rear): >200 @ 4 ohm/50 Hz
  • Damping Factor (sub channel): >500 @ 4 ohm/50 Hz
  • Input Range: switchable from 200mV-2V RMS to 800mV-8V RMS
  • Differential-Balanced Input Topology: (3 pairs of inputs)
  • Front Crossover: fully-variable (50 Hz-5 KHz), selectable- slope BP or HP (12 or 24 dB per octave)
  • Rear Crossover: fully-variable (50 Hz-5 KHz), selectable- slope HP (12 or 24 dB per octave)
  • Sub Crossover: fully-variable (40-200 Hz), selectable-slope LP (12 or 24 dB per octave)
  • Preamp Output: 2-channel (full-range or LP)
  • Bass EQ: Variable boost up to 15db
  • Infrasonic Filter: defeatable 24dB/octave at 30 Hz
  • Left minus Right Ambience Circuit: ambient effect for rear channels
  • Front and rear speaker output connections: accept up to 8ga. wire
  • Dual mono subwoofer output connections: accept up to 8ga. wire
  • +12V and Ground connections: accept up to 4ga. Wire
  • Dimensions: 19.7"L x 9.25"W x 2.36"H
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    How much the memory on compaq v3000z can be increased and what type ddr, ddr2 or ddr3? currently it has 256.


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    Crown amp xs900 will not reset



    naz, get a hold of crown, tell them whats up. check all fuses and connections first. the unit is worth $900.00. they should be a little understanding.

    Features
     

    • 2-ohm dual (per channel) : 1200W
    • 4-ohm dual (per channel) : 900W
    • 8-ohm dual (per channel) : 600W
    • 4-ohm Bridge : 2500W
    • 8-ohm Bridge 2100W

    • Indicators for : Signal, Clip, Power, AC Mains, Fault, Bridge, Temp.
    • Housed in a rugged, all-steel 2U chassis
    • Microprocessor-controlled protection system.
    • Flow-through ventilation from front to back.
    • Internal heat sinks with forced-air cooling for rapid, uniform heat dissipation.
    • EIA Standard 19-inch rack mount width
    • Safe with all types of loads.(2 to 8 ohms in Stereo, 4 to 8 ohms in Bridge Mono.)

    Inputs 

    • XLR-¼" combo connectors: One per channel
    • 3-pin female XLR connector and TRS ¼" phone jack accept balanced or unbalanced signals.
    • 3-pin Phoenix-style connectors (2-channel models only),One per channel, accepts balanced or unbalanced signals.

    Output 

    • Balanced XLR connectors (2-channel models only)
    • One per channel, 3-pin male XLR connector in parallel with XLR-¼" combo and Phoenix-style input connectors for daisy-chain operation.
    • 5-Way binding post output connectors: One pair per channel; accept banana plugs, spade lugs or bare wire.
    • 4-Pole Speakon output connector (2-channel models only)
    • Accepts a 4-pole Speakon connector.

    Dec 31, 2008 | Crown XS900 2-Channel Amplifier

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    Help!


  • CPU: Intel CeleronD 2.66GHz CPU
  • Motherboard: ECS 661FX-M
  • Chipset: SiS 661FX
  • Devices
    • 40 GB HDD
    • Combo DVD-ROM/CDRW Drive
    • Floppy drive
  • Memory: 128MB DDR333
  • Operation System: Windows XP Home Edition SP2
  • Accessories Box
    • Keyboard
    • Mouse w/scroll wheel
    • Stereo Speakers
  • Features
    • Integrated SiS Real256E Graphics. SMA up to 64M.
    • Open AGP 8x slot, 3 x PCI slots (1 used)
    • 6 x USB ports (4 back, 2 front)
    • Build in AC97 audio codec.
    • 10/100 build in onboard LAN port and 56K Modem
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