Question about Concept (CC752L) Car Audio Amplifier

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Turn on pop

I used the rca outs on a concept 752 amp to hook up a s*** (I mean sony) amp (4 ch) and ever since ive had turn on pops, more so if the high pass filter is off.

Prob with a resistor?

I did tap into my cars power through the fuse blocks

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Try to reground the amp

Posted on Dec 06, 2008

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with no signal input the fuse should not blow ,if it blows then the amp has a short on it ,if it blows when the volume is turned up really high the try 60 amps .

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In bridge mode the minimum load will be 8 Ohm.
If you are using 4 Ohm speakers, it will mean you will give each side of the amplifier a 2 Ohm load.
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Car Audio - mixed ohm speakes - best setup


Here is the link how the speakers are suppose to be connected.

http://www.fixya.com/Uploads/images/94A2E8C.jpg

You notice how they hook it up the left connections are your full range or hi frequency speakers and the switch is on for HPF (High pass Filter meaning only high frequency is being passed thru)

The right connections are connected to subs and the switch is on for LPF (Low pass Filter meaning only low frequency is being passed thru)

If you turn off these switches to off the its FULL RANGE all frequencies will pass thru.

The single output of the radio is probably for a subwoofer output but since your using the amp to power speakers too Its useless because your sending only low frequencies to the amp which will make any speakers connected to the amp sound horrible due too all the highs and mids will be filtered out.

STEP 1. 2 4ohm speakers depending where you put them Front or back. Hook these speakers up to the Radio's speaker wires coming out of the radio harness. You can also call them Hi level output wires FR & FL wires if positioning them in the Front. Hook them to the RL or RR if positioning them in the Back. What ever wires you dont use tape them SEPARATELY . DO NOT TAPE THEM TOGETHER and cause them to touch each other it will short out the radio and you will hear no sound.

STEP 2. Ok get 4 same length speaker wires and cut them long enough to go too the amp. Now these speaker wires will only send the FULL RANGE frequency signals to your amp. So note with a paper and pen how your connecting each speaker wire. I would tape one wire with black tape to remember this is the FR right, 2 tape FR left, 3 tape BK right, 4 tape Bk left. And I would make the copper thread of the wire positive and silver thread of the wire negative (very important so that your in phase and it will sound awesome) mixing up the positive and negatives will give you a tinney sound and it horrible to hear .

STEP 3 connect these 4 speaker wires to the High level out speaker wires coming out of the radio. The wires that are already connected to the 2 4ohm speakers go ahead and splice into them and the ones you didnt use connect to the remaining 2/4 speakers. REMEMBER OR NOTE THE CONNECTIONS cause you have to connect the right sequence and right polarity + & - to the HI Level input of the AMP. You will not use any RCA'S from the radio to the amp anymore. Since your radio dont have any Front & Rear output coming from the back of the radio. (YOU CANNOT USE BOTH RCA INPUT & HI LEVEL INPUT OF THE AMP ITS 1 or the other OR YOU WILL BURN OUT THE AMP AND DAMAGE THE RADIO)

STEP 4. Now connect your 2 6ohm speakers of your front left and back left together in parallel and your 2 6ohm speakers of your front right and back right together in parallel. Look at the diagram hook it on the left connections as in the picture of the front left speaker(but your connecting two 6ohms valued at 3ohms when in parallel and the amp can handle 2ohms so its safe) Do the same connection for your two right speakers as shown in the diagram of the Front right speaker. SWITCH THE HPF to OFF so that you get full range out of your speakers. Mid range is 70% of your music if you turn it ON you are only getting the high frequencies and it will sound awful.

STEP 5. This is the final connection Your 6 ohm sub is very bad for this amp. For example if you bridge it off of the last two channels the amp may double the power. If each channel is 100 watts and you connect the positive to one channels positive and connect the negative to the others channel negative(presuming its bridgeable) On a regular 4ohm sub it will be getting 200 Watts of power which is an average thump. Now you put a 6 ohm sub it will be weak and it will be getting around 130Watts. To make it worse if this 4 Channel amp is not bridgeable you can only connect it to 1 channel and the output will be around 70 WATTS causing distortion due to lack of power. If you still connect the sub be sure the switch is ON.

Good luck cause this the best connection you can do anything different and I'm sorry it will sound even worse. I am a master installer and have done this for 12 yrs. The higher the ohms the worse the sound gets cause less power. Thats why car speakers are 4ohms and home speakers are 6 ohms or higher cause they have a bigger amplifier to power and 120volts AC current. A car only has a 12Volt DC current powering the amp.

Apr 06, 2010 | Sony Xplod XM-554ZR Car Audio Amplifier

1 Answer

Ive got a 5channel zeus z7oo & im hooking up


if i were you i would put the switch to 4ch and the run one sub from ch1-2 bridged and then ch3-4 bridged. I would have to bet this amp is stable only to 4 ohms bridged with so many channels

Mar 19, 2010 | Hifonics Zeus Z700 Car Audio Amplifier

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Were do i plug in the RCA cables from the amp to a factory radio? do i need any sort of adapters if my stereo dose not have inn or outputs? and where do i hook up the remote from the amp?


Most factory radios do not have RCA outs, but most will have a remote wire. Usually used for a power antenna option. Your remote wire from the amp could be hooked to the power antenna wire on the factory radio and it would work great for turning on the amp. As for the RCA inputs on your amp, you will not be able to use them without RCA outs on your factory deck. Although most amps offer a high level input alternative and will use the standard speaker level out on your factory deck. This means the rear channel speaker wires from your factory deck will be used to feed the signal to the amp. You will have to check the instructions and manufactorer recomendations for the amp you are trying to hook up. Have fun and good luck!

Mar 09, 2010 | Stingpro ST444 1850 Watts Complete...

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I hooked this 1000 watt amp up.it turns on but it


Your amp needs to be serviced. Bad protection circuit. Take it to a local car audio shop and have them bench test it first to be sure. Hope this helps.

Sep 26, 2009 | Sony Xplod 1200W Class AB Bridgeable 2-Ch....

1 Answer

Just bass through speakers attatched to amp


there is probably a switch that says lpf-full-hpf those are your low pass filter(only low tones) full which is all ranges of sound and high pass filter which when you want to hook up a set of mids or highs I hope that this helps u out

Apr 01, 2009 | Car Audio & Video

1 Answer

Sony xplod xm-554zr amp


if you are trying to run some highs with built in high-pass crossovers off of a amp that is setup for subs(amp is on low-pass) then your highs will not work. You are better off running another amp or running them off of your deck...

Aug 18, 2007 | Sony Xplod XM-554ZR Car Audio Amplifier

1 Answer

Red light 2


Probably not, as i said there are no user serviceable parts inside this unit. If the units worth it to ya take it in to be estimated. Good Luck

Jun 13, 2006 | Sony Xplod XM-554ZR Car Audio Amplifier

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