One other piece of data: I tried an Alpine CDE163BT receiver in this exact setup and had NO noise problems at all with the AUX jack. Guitar amps by themselves are inherently noisy. Joe, If you bought your gear from Crutchfield, you could call Tech Support for free help with your system. Their toll-free number is on your invoice. I'm curious if Ground loop isolator would work post amp? I was thus provided with a 20-foot long extension to route this connection into the dash & into the head unit. I have a line output converter connecting the factory speaker outputs to my amplifier. Tobias. I can hear the alternator at low volumes as a high pitched, albeit rather low volume whine. While it's surging everylight in my car dims with every thud even. Compatible Discs: The Kenwood DDX418 supports playback of DVD-Video, DVD-R/RW, DVD+R/RW, CD-Audio, CD-Text, CD-R/RW, DTS-CD, and VCD discs. When I connect the blue wire on the harness 'antenna' it both grounds and operates the antenna, I get the hissing sound.my black ground does nothing. The unit operates flawlessly (no noise) in every mode except when I connect ANYTHING to the AUX input on the front. I recently installed a 10" Sub and amp in my car and used a LOC to run RCAs as I left the stock radio in. Hi Buck, I installed a AVIC 8100NEX into my Lexus LX470 SUV. If you've tried all of the noise-fighting tips above and you're still getting static, whine, or hiss, then the problem might be with your vehicle. ・ There may be cases where sound cannot be played from the KENWOOD head unit even though the music is being played back on the cell-phone. then enter to win a $350 gift card. Do you have a typo in your article? Great article. Ratan, The vast majority of noise issues arise due to bad ground connections. The amp has pun style plastic connectors on top and bottom. It helps to remember that you've just placed a very sophisticated piece of electronic gear (a new receiver or amplifier) in the middle of an extremely complex system — your vehicle's electrical wiring. I have an '03 BMW for which I just installed a new aftermarket (Dynavin) head unit (HU). (I'd prefer to not add a huge "whip" antenna to the car.) I have an alpine cde-148bt head unit with Jl Audio C3-650 component speakers in the doors. This could be due to poor relay design or loose contacts and connections. A booster amplifies weak signals. I have CCA true 4 gauge wire going to a distribution block into two 8 gauge OFC power wires for each amp. Their toll-free number would be on your invoice. Since the antenna lead can act as a ground (thereby enabling a new receiver to operate without its ground wire properly connected), the antenna lead is frequently the source of noise problems. Also I run a ground distribution block with all four amps hooked to the distribution block and it's running 1/0 Stinger to the vehicle chassis. As a side not...the car is equipped with bose system. This kit will help reduce or eliminate: 1. I have a strange issue after changing to a new amplifier. My question is what else could be causing this issue and would it be wise to switch to a powered Line Output Converter like an audio control lc2i? When I'm playing a CD or using my Bluetooth In my Truck Why do I have the FM radio signal coming through at low volume levels which creates distortion at low level . Noise in your audio system commonly comes in these three forms: What can you do? Coleman, It sounds like you have a classic case of a ground loop, when a system's power circuit has more than one path to ground. Why don't you give us a call and let an Advisor help you pick out a new one that'll fit your vehicle and you entertainment means. All the sounds described online seem to be more steady and constant. Tanner, An alternator noise suppressor connects inline between the alternator and battery, and needs to be rated for at least the alternator's Amp rating. Kenwood Super Eleven 11 High Speed Dc Stereo Receiver. Amplified speakers allow you to operate successfully in high-noise environments! Unplug all the RCAs from the amp to troubleshoot and fix the power wiring until the noise goes away. What is causing this? The Bluetooth band is completely noise free when the antenna line is disconnected. All my ground are good I did the big three and add some extra ground to the alternator, chassis and engine block. No difference. Even an unconnected 3.5mm stereo line (with no device connected to it), will cause unacceptably loud noise. I have a kenwood 9703s head unit. If the noise isn’t coming in through the antenna, try pulling the receiver from the dash while a CD is playing. If you bought it at Crutchfield, you could call Tech Support for free help troubleshooting your system. Is there anything that can isolate the "noise" coming from the alternator itself? I have 0 gauge for grounds and power cables coming from distribution blocks and grounded under seat belt bolt with paint Being removed to show bare metal. A forum community dedicated to all mobile audio enthusiasts. It lets you compare sonic characteristics between speakers. Desperately hoping for some help. Overall, very positive experience. Avoid using the ground from the harness kit to connect the new HU. Would a 1000W power inverter be enough? Speaker buzz in all 4 doors. Whenever the car accelerates, AM static diminishes but still present, comes back worse when maintaining speed. There are no additional components added to the radio. Check to see if you're getting noise on all sources — CD, auxiliary/USB, AM, and FM. The shipping responsiveness/tracking is excellent. If I keep it disconnected, the audio coming from the bluetooth unit is great. How to Fix a Stereo Receiver That's Not Making Sound . Marty, Noise that tracks the engine's RPM is usually caused by a loose ground or power connection. All grounds in the system as well as in the car have been tested and are reading between 0-.2ohms I am using an ignition switch wire as a trigger wire, my head unit is run off of a data system that has no trigger wire. The inexpensive RCA cables many people use to connect their components don't have the insulation or conductivity necessary to deflect noise in a metallic, highly conductive automobile. Click on this link for details. The static/noise only occurs when the engine is running. So what can be wrong? If you no longer wish to receive the call, please click the button to cancel your request. High and low pass crossovers enhance the sound experience while the 13-band equalizer allows customized tuning. This guide will help you diagnose and treat problems with extraneous noise in your car audio system. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Click on this link for details. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. If I need 2 RCA cables for my 4 channel amp, one for subwoofer channel and one for the front mid/high range channels, which channel would benefit most from a higher quality (twisted pair) RCA cable? Anyone can market and sell a product. I doubt that adding an expensive processor will solve the issue. It sounds like something is wrong with your receiver and it needs to get replaced. Check the power. I thought it was a grounding issue. The noise seems to be coming from the LED TV itself as I can move the RCA cables farther away and it seems to reduce the noise, but still very loud. Adjusting the gain does not alleviate the whine, and the amplifiers are well powered and grounded. Have kenwood kr v107r and have a static sound all the time from speakers in any mode tryed all things to remove sound. Our Amplifier FAQ answers many common questions like: How can I add an amp to my system? Your article says that the RCA cables are the issue if the noise is still there AFTER disconnecting the wires at the amp. If you bought any of your gear from Crutchfield, you could call Tech Support for free help troubleshooting your system. Crutchfield employees love to build their own unique sound systems - and show them off. Thank you! I now disconnected the FM cable from the radio and the symptoms are less. A cable's loop area is equal to the distance between its center conductor and outer shield times the length of one complete twist in a twisted pair configuration, or the entire length of the cable in a coaxial type. Their toll-free number would be on your invoice. The system sounds great with the key in the accessory position. Click on this link for details. We still believe that the gold standard for auditioning speakers is hearing them in your own environment — that’s why we offer a 60-day money-back guarantee. I bought an Axxera head unit from you guys a while back, and when I initially set it up I've always had a little bit of noise, nothing major, and I've lived with it. I have the 2 iDataLink and maestro kits installed for SWC retention. What can I do. Aston Martin Convertible Stereos and Speakers. Noise that tracks engine RPMs is usually due to loose power or ground connections. Carol Anne, I don't think an antenna booster would work in your situation. Perhaps using our interactive flowchart will help you pin-point the problem better. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. With all of my lightening cables (and eventually even with Kenwood's KCA-iP103 lightening cable) I had a hissing/static sound as soon as CarPlay was activated. Davis is absolutely amazing. With the full-range speakers turned down, does the static play from the sub? Isolation transformers in the signal path might help. You know you have lifetime tech support? I've just had a new pioneer AVH- 8700 fitted which has iplay so the iPod docking station was removed and radio was fine. Is it near something that could be radiating noise, like a rear-mounted tuner or computer? Then turn it back on. Excellent article. Feel free to knock my head into shape if my thinking is way out :D. Land Rover Discovery 2 2004 - I just fitted a Parrot MKI9100 bluetooth kit which works nice but picks up terrible noise from alternator/engine, loud whine which goes up and down with revs of the engine. Kenwood TS-890 RFI kit is designed to be installed on your radio transceiver to reduce Radio Frequency Interference (RFI) caused by common mode current on the coax output of your radio, the DC power, USB, ALC/Send, mouse,mic and additional interconnect cables. FM, CD, and USB input are all clear as a bell. Their toll-free number would be on your invoice. There is some static noise when adjusting the volume, but once you stop the sound is normal and incredible. The problem is I get a loud popping sound when: -The radio turns on -The radio turns off -I change tracks when using USB … If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Amp is directly attached to the battery and using a test RCA cable outside the car. I guess I won't know until I have the system installed but if it won't work, I'd like to know before I buy the inverter. never changes pitch or volume. It's possible that grounding one of your car's components will eliminate the noise. thank you for your time. Klipsch rates that system as 35 watts per speaker and 50 watts for the sub (120 watts total) while playing at 5% THD, audibly distorting. If you bought gear at Crutchfield, you could call Tech Support for free help troubleshooting your system. Improper ground is one of the biggest causes for introducing noise into your audio system. I belong to a culture of fine sights and sounds, and I like spreading the word. AB amplifiers are about 50% efficient, so a 150-watt inverter should work. Sal, What you had there was a ground loop, where the receiver was getting its ground connection from multiple places, including the ground wire in the harness and the chassis touching the metal dash. This guide will help you choose the right amplifier for your car's sound system. Just give Crutchfield Tech Support a call for free help troubleshooting your system. Testing the TV with the inverter I plan to use I have no issues with audio from the tv speakers or even out the headphone jack when using a small pair of computer speakers (this is the output I plan to use to feed into the van's DHS surround sound amp). I was getting a whine/hiss noise coming through my speakers. DSP noise reduction speakers use special algorithms to remove hum, hiss, static, power line noise, and other interference. Timothy, Alternator noise usually occurs when a ground or power wire is loose or broken. Noise problems can be very frustrating, especially when you can't wait to hear your new equipment. I have just replaced an fm/am/cd head unit for a dab/fm/am/cd head unit. Click on this link for details. Pretty sure it's not faulty equipment. Im running 2 T2000bd and one of them seems to be the source of the noise. Read over this article for some hints and explanations of what can cause noise in your system. Dolan, Most of the time when engine whine is audible it's because of a bad ground connection somewhere. That's why we say to try all other methods of repair first before employing one. If you bought your receiver from Crutchfield, you could call Tech Support for free help troubleshooting your system. Maybe you're right and another brand EQ will work better for you. Knowing which model headphones you’re using lets us remove any sonic coloring from your experience. Only at idle. Who says it can't be faulty equipment even when new? Turn on your system and engine. Click on this link for details. I have unplugged the antenna black cable as well and tried running music through Bluetooth and I still have the issue. Most often this is the result of a loose or otherwise inadequate ground or power connection for the amplifier. No static in the speakers at all. If I turn the stereo off this doesn't happen. I've recently bought an Alpine HD148BT receiver from Crutchfiled which I am using in a portable "Boom Box" that I have made. I have diagnosed it down to the in dash American Bass AB7BV EQ shutting off before the Polk PA D5000.5 Amp. Thank you, Mark. I added an LED dimmer switch to my courtesy lights. Daniel, It sounds like your subwoofer amplifier is plugged into a tape output that's tuned to a different source than the main output. Thanks, Amos?? George, If you swapped power leads and the problem switched over as well, you have a problem with your power wiring. a chevy cruze 2014 lt no pioneer upgrade, just stock. I worked in my high school's stage crew, running sound, lights, and a movie projector. G4APL’s TS2000e suffers from 20 to 30db attenuated receive signals and Intermittent ‘Static’ on all bands with the aerial connected or not, or switched to dummy load. Their toll-free number is on your invoice. At Full power or no power, I get no RFI. I need help please. But with the vehicle running, the radio off, and the window rolled completely down, there is a buzzing present in the door speaker. If you bought your gear at Crutchfield, you could call Tech Support for free help troubleshooting your system. But it could be a faulty equalizer. If the noise wasn’t due to a poor ground or through the stereo’s antenna cable, it may be coming in through the amplifier's main power cable. 2002 Nissan Sentra. I've re-wired the pins on the extension so that they source power/ground/illumination directly from the OEM HU's pins in the dash. My new Haval h1 is two months old with 700km on the clock.I bought it new with 20km on th clock.From day one it had this funny noise on the radio,CD and USB even if ignition is off.I took it back to dealer twice with no success.s so frustrating that I even think of trading car in.It makes a noise like cell phone interference.What could be the problem? I've tried entirely separating the speaker cables from the power/BUS/etc. . Over the past 2 weeks or so however, I've been getting a fairly loud, erratic, static-like sound coming out of the left speaker ONLY when I power the receiver up. Comments will display after being approved by our moderators. On certain high volumes (over 20 generally) AND songs, I have static in my front speakers. Is it possible to resolve that? A very effective fix for electrical system noise is called "The Big Three" upgrade. Please help. I have a Kenwood TR7400A. I have noise coming from leds. Hello. My question is, is it possible noise is being introduced into my speaker wires, ran off the 4-Channel amp, to the factory speaker wiring behind my head unit like you're post on wiring a 4-Channel amp using an EFX-9Wire. Can you give me an idea why this is happening if this is a brand new system? Chances are, grounding one of the under-hood components will eliminate the noise. Keep up the great work! Confused about wiring your subs and picking the right amplifier? Joel, Locating and correcting noise issues in a car audio system are often difficult and confusing. Eon, Acoustic feedback, that loud ringing that occurs when a microphone picks up and rebroadcasts the sound of a speaker, would only be possible if your factory Bluetooth system is in hands-free calling mode and the volume's too high. Only when the Parrot kicks in and starts putting sound through the speakers, then the noise starts, for example on a call or when streaming music from phone through the parrot system. The receiver is equipped with a MOSFET amplifier which delivers increased power with minimum distortion. If you are unable to locate the cause, a ground loop isolator (like PAC's SNI-1) can be installed between the receiver's preamp outputs and the amplifiers to minimize this problem. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. The van came with a Pyramid NS-21 and is in line. Im also running a 3 battery system consisting of 2 D3400 and a D3100. Their toll-free number is on your invoice. So something's not right and causing the interference. Moved headunit in and out of dash to see if noise is being introduced behind headunit in dash, noise was still present. If you bought your gear from Crutchfield, you could call Tech Support for free help troubleshooting your system. Their toll-free number would be on your invoice. Hey so i just got an 02 subaru forester a couple weeks ago and just installed a new stereo and hooked up my sound system and im getting a whining sound coming through but only when the sound is on and the noise changes with the sound of my engine/alternator. They actually pay me to ramble on, rant, and explain the things I love about music, electronics, and getting good sound. Noise is with every source, and also with nothing connected just when the car is idelling and gets louder as I rev the engine. Unfortunately, I don't know of any way to keep power to the EQ while the amp turns off. Click on, Rick, Getting these noises only when tuned to an AM radio station points to a faulty antenna or antenna connection. There is no interference when the car engine is off and the stereo is on though. I don't hear it, but whoever receives the call can barely hear what I say. Their toll-free number is on your invoice. Car amplifier audio terms - like watts, volts, and efficiency - are explained. The radio reception was the most exceptional I had ever heard, even out-performing any car stereo I've ever tuned into, and that's likely due to the lack of an engine or alternator, but there are LED lights present though they have never caused a problem before. Their response was "because i have a bose system, that it picks up background noise and converts that noise into a signal that it sends back through the system and thats what I hear in my subs and that I they need to disconnect the wire that causes that" I'm trying to hook a car amp and subwoofer to my home theater system using a ac to DC power converter. only one that works good are dual radios. Dylan, It sounds like the amp needs repair or a replacement. Aaron, When you disconnected the RCAs from your receiver and heard no noise, you significantly narrowed the search for the source of the noise. Very knowledgeable & always happy to help. It doesn't get louder while driving. It has an amp with a subwoofer knob and a main volume knob. The buzzing sound is constant at any volume even on zero. CD and am are fine. No luck. A tiny bit of hiss is okay — you won't hear it while driving. Many installers paint over the ground connector and bolt to prevent corrosion. Or your radio is malfunctioning. Overall I recommend Crutchfield because you have amazing service, from selecting the right products to the tech support. If you bought your receiver at Crutchfield, you could call Tech Support for free help troubleshooting your system. I have it running both a 1200W mono and 250W 4 channel RF Prime amp. I get random pops and bangs on the speakers. There's a good chance this'll solve your noise issue. I have 3 JL Audio 12W1v2-4 in a non ported box on a 2 channel 2000 watt planet audio amp running 4 gauge wire also have a Scosche 500K Micro -Farad Capacitor. I am running all of my speaker wiring on the same side as my rca cables. Experiment until you eliminate the hiss or reduce it as much as possible. After pulling off the entire side inner panel and taking off thr seat belt bolt i get to the factory amp and there is no way to connect using the audio plugs. I have replaced ignition components, swapped radio with known good one and the problem stays with the car.. Steve, It sounds like your receiver has a AM tuner issue. Could it be a crappy LOC causing this issue? Their toll-free number is on your invoice. Crutchfield is servicemark of Crutchfield Corporation. In other states where we don't collect sales tax, it may be the customer's responsibility to assure that all appropriate state use taxes are paid. through at low volumewhich creates d from Marysville. Brian, The vast majority of noise issues arise due to a bad connection or ground loop. “PROTECT” appears and no operations can be done. It is only there while the engine is running. Thanks! All 3 preouts to amps are run with twisted pair RCA cables. If the car computer (or other motor-less accessory) is causing the problem, move your receiver's wiring away from that accessory to minimize the radiated noise. Make sure the ground connections are free of paint, providing metal-to-metal contact with the car chassis. I recommend you check over the receiver's wiring and ensure all connectors are tight and secure. Try using magnetic shielding foil (also called Mu-metal) to shield the back of the receiver or wrap the wire or component that's radiating the noise into your system. Crutchfield will get you on the fast track to big bass with this simple guide. It increases with fan speed and is there when vehicle is running or just in "On" ignition position. Hey, I've gone through this flow chat without any avail. I have found forums that say the only thing you can do is add a shut off delay circuit on the remote lead going to the EQ. Your ground wire should ideally be 18" long at most — a longer ground wire can cause noise problems. Page 15 Symptom “READING” keeps flashing.
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