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?

Dual XPE1700 User Manual ' Page 7 / 12

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Dual XPE1700 User Manual • Amplifier connections, Xpe series installation • Dual Car amplifier. ... load for the XPE2700 and XPE4700 ... Subwoofer (mono).

Dual Car Amplifier XPE2700 User Manual - Etronics

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Find product support and user manuals for your Dual Car Amplifier XPE2700, and save it to your ... Connect speaker wires observing ... Subwoofer (mono).

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  Dual Car Amplifier XPE2700 User Manual

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  your particular installation. Subwoofer (mono). Typical Bridged Wiring. (4 ohms minimum). 2 Speakers (stereo). Typical Stereo Wiring.

Car Amplifier User Manual - Dual XPE2700

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XPE SERIES INSTALLATION Connection Descriptions NOTE Be sure to follow specific instructions included with your amplifier installation kit (not included ...

Tv Speaker; Stereo/dual Reception; Nicam Reception ...

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LG 141K TX) Manual Online: Tv Speaker, Stereo/dual Reception, Nicam ... Stereo. Dual. Mono Sound Selection. In stereo reception if the stereo signal is weak, ...

Video Mode; Audio Mode; Still; Stereo/mono - ManualsLib

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for stereo wiring, you get the most power with dual 2 ohm loads, in mono, you want a single 4 ohm load, or 2x2 ohm loads

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

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?

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



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

if your runnig mono depending on the setup you could be canceling out your signal strengh running mono i would try stero and run dual cords to it

Compaq Presario V V3000 Specification Memory Type: DDR2 SODIMM 200pin DDR SODIMM:
DDR, double data rate is a type of SDRAM in which data is sent on both the rising and falling edges of clock cycles in a data burst. It is usually referred to as DDR as opposed to DDR SDRAM.
SODIMM, small outline dual inline memory module. Smaller and thinner than standard DIMMs, SODIMMs are typically used in laptop computers. Memory Speed: PC2-4200, PC2-5300 Chipset: Intel 945GM Chipset :
A group of chips that together make up a complete computer processing unit, usually on one circuit board (the motherboard). It may include the main central processor, graphics processors, secondary cache memory, and input-output controllers. Memory is one component controlled by the chipset. Standard Memory: 512MB Removable Memory Slot(s): 2 Max. Memory Per System: 2048MB (2GB) Max. Memory Per Slot: 2048MB (2GB) Dual Channel Memory Support: Supported Dual Channel :
A development in motherboard and chipset design that allows for increased bandwidth transfer when using two or more memory modules in separate transfer channels. These separate channels allow each module access to the memory controller, increasing throughput bandwidth. It is a good idea to use matched pairs of modules to ensure the best compatibility for dual channel operation. Tri-Channel Memory Support: Not Support Tri-Channel :
A development in motherboard and chipset design that allows for increased bandwidth transfer when using three or more memory modules in separate transfer channels. These separate channels allow each module access to the memory controller, increasing throughput bandwidth. It is a good idea to use matched three modules to ensure the best compatibility for tri-channel operation. Install Memory in Pairs: Not Required Install in Pairs :
Memory modules must be installed in pairs of matched memory size. This means that if you purchased your computer with 128 MB of memory installed and you want to add another 512 MB of memory, you must remove the two continuity modules and replace them with two 256-MB memory modules.

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.

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