Rockville KRYPTON MF3 Owner'S Manual Download Page 24

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PROBLEM

Amp keeps blowing fuses

Amp gets very hot

Distribution Block Amp Fuse

 - If both sides of the main fuse have power, and one side of the distribution 

block has power, but the other side of that fuse is dead, then you’re either dealing with a shorted power wire 
or an internal amplifier fault. There are a few ways to determine which one is the culprit, depending on how 
your amp is installed and where the wires are routed.
1. Check if you can see power wire that connects the distribution block to your amp. In an ideal situation, 
you’ll be able to see the entire length of the wire. If that isn’t possible, then the next best thing is to just dis-
connect the power wire from your amp, make sure that the loose end isn’t in contact with ground, and check 
whether the fuse still blows. If it does, then the problem is in the power wire, and replacing it will almost 
certainly fix your problem. Of course, you’ll have to take vessele when routing the new wire so that it doesn’t 
end up shorting out as well. If the fuse doesn’t blow with the power wire disconnected from your amp, then 
you have an internal amplifier problem. 

Internal Amplifier Fuse

 - If the fuse blows when the amp is turned up, then you likely have subwoofers that 

are either incompatible or that are wired at too low of an impedance. Rewire to achieve proper impedance, 
or replace the subwoofers with compatible ones. Check and make sure the power and ground wires did not 
get crossed. Also, check and make sure your speaker wires are not crossed.

1. The main reason amps overheat is if the impedance they are running at is very low, or if the subwoofer 
requires more power than the amp can give it. Also if the wiring cannot give the proper current fast enough, 
it can cause the amp to get hot as well. Make sure the amp is running at the proper impedance, or use 
subwoofers that are compatible with the amp. Make sure the wiring is correct and you are using the proper 
wires for your system.
2. A poor ground cable connection can cause your amp to get very hot. Check your ground connection and 
make sure that the cable is securely tightened.
3. Check the location where your amp is mounted. Make sure it is in a spot where it will receive proper ven-
tilation.

CAUSE/SOLUTION

Summary of Contents for KRYPTON MF3

Page 1: ...ered a bundle that includes more than one product and you are missing part of your bundle then it just means your order shipped from two different warehouses You will receive the remaining items very...

Page 2: ...our commitment to the end user See enclosed warranty vesseld for details Please read this installation guide vesselefully for proper use of your KRYPTON Marine amplifier Read this entire guide fully b...

Page 3: ...e attached to the bottom of the amp via predrilled holes see diagram below Mount the amplifier somewhere out of the way at the rear of the vessel underneath the dashboard or below the seats Choose a c...

Page 4: ...ers protection against damage from short circuits The power wire should terminate in a large ring terminal connected directly to the POSITIVE terminal An optional second fuse can be installed closer t...

Page 5: ...GAUGE SPEAKER WIRE 0 61 15 5mm 0 76 19 5mm 0 76 19 5mm 0 66 17mm TERMINAL DIAMETER POWER 0 33in 8 5mm REM 0 15in 4mm SPEAKER 0 15in 4mm TERMINAL DEPTH POWER 0 76in 19 5mm REM 0 66in 17mm SPEAKER 0 61i...

Page 6: ...el for personal preference Keep in mind that after equalizing you may have to go back and reset the amplifier s level controls If your unit has been professionally installed please do not change the g...

Page 7: ...ing for your particular ported enclosure Keep in mind that one octave up is double the frequency and one octave down is half the frequency 1 Divide the tuning frequency of your port by 4 2 Now subtrac...

Page 8: ...r output to the amplifier s Channel 1 and 2 input jacks Set the INPUT MODE switch to 2CH The amplifier s preamp circuitry will automatically mix all the channels and output will occur on all 4 channel...

Page 9: ...put jacks Feed Rear Left and Rear Right output to the channel 3 and 4 input jacks Set the INPUT MODE Switch to 4CH The amplifier s preamp circuitry will automatically mix all the channels and output w...

Page 10: ...ently on channels 1 4 being vesseleful not to load any single channel below 2 ohm stereo For typical 6 x 9 or 6 5 or component or coaxial speaker installs set the Crossover Mode Switches to Full Range...

Page 11: ...per the diagram wiring the woofer to Channel 3 s positive terminal and Channel 4 s negative terminal Set the Crossover Mode Switches of Channels 1 and 2 to Full Range while Channels 3 and 4 should be...

Page 12: ...r to Channel 1 s positive terminal and Channel 2 s negative terminal Wire one woofer to Channel 3 s positive terminal and Channel 4 s negative terminal Set the Crossover Mode Switches to LPF CROSSOVER...

Page 13: ...functionality Simply connect the included microphone to the 3 5mm jack marked MIC and you are ready to go When the microphone is keyed a music will fade to the background When microphone is unkeyed mu...

Page 14: ...dditional cooling fans to exhaust the hot air which can build up in the trunk This will help keep the ambient temperature in the trunk as low as possible so that your amps work flawlessly and without...

Page 15: ...on the amp have crossovers so they can each be used for subs or full range speakers or tweeters or midrange speakers All channels on the amplifier are bridgeable Digital Voltage Display on Amp Fully...

Page 16: ...0Hz 50KHz Damping Factor 85 100Hz 2 x 25 Amp ATC Fuse Dimensions W x H x L 8 66 x 2 2 x 13 1 KRYPTON MF4 Dyno Certified RMS Power Output 2 Ohm 150 Watts x 4 Channels 1 THD N 4 Ohm 100 Watts x 4 Channe...

Page 17: ...s Marine amp is 2 ohm stereo and 4 ohm mono bridged Lower impedance loads will cause overheating and may damage the amp Do not mix different impedance speakers in series and or parallel combinations a...

Page 18: ...18 DVC Configurations Woofer Wiring Guide continued...

Page 19: ...rrectly 3 Blown speaker To check for a blown speaker disconnect all the speakers from the amplifier If the amp goes out of protect mode then the problem is indeed a blown speaker Find which speaker is...

Page 20: ...mote turn on of the receiver A common error we see is the remote turn on gets connected to the antenna wire instead of the remote turn on wire of the head unit Please note the remote turn on wire is a...

Page 21: ...ow you only to enable front and rear which would cause the amp to have no sound 8 Speaker wire is not making a good contact on the speaker output of the amp or on the speaker terminal You need to make...

Page 22: ...f your RCA cables and speaker wire are run alongside your power cables they will pick up feedback If this is the case you will need to run the RCA cable on the other side separate from your power cabl...

Page 23: ...our crossover setting on your amplifier You may need to filter out more high frequencies which your sub is not meant to play So make sure it s on low pass mode and then you also should try lowering th...

Page 24: ...e doesn t blow with the power wire disconnected from your amp then you have an internal amplifier problem Internal Amplifier Fuse If the fuse blows when the amp is turned up then you likely have subwo...

Page 25: ...ng a multimeter 2 Check the RCA cable that is plugged into your receiver Make sure you plugged the amplifier into the pre amp output that is red and white In many cases we have seen customers plug the...

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Page 28: ...Features and specifications are subject to change and or improvement without notice Though we tried our best to ensure that this manual is free and clear of errors please don t hold us responsible for...

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