20 Most Recent Visonik V408XT 250W x 2 Car Amp Car Audio Amplifier - Page 8 Questions & Answers


A loudspeaker doesn't usually have DC present on the terminals due to the very low impedance a high current can flow and destroy the speech coil. It would also hamper the correct operation of the loudspeaker. Because of this the amplifier output is decoupled either by transformer or by capacitor, effectively blocking direct current while allowing the alternating current output of the amplifier to pass. The thump sound in the speakers at switch on is caused by the decoupling capacitors charging due to the speaker providing a ground path. Purely as a matter of interest, in the days of ancient radio, some speakers had no magnet which was replaced by an electromagnet through which the radio supply current would run after rectification and smoothing, the windings acting as a smoothing choke providing additional regulation. Such loudspeakers had four terminals, two of which did carry a powerful direct current and those confusing the terminals quickly saw smoke...

Car Audio &... • Answered on Jun 12, 2020


It's protecting itself from a wiring short. There is a way to reset it but I can't remember the two buttons you hold down. I remember that first you have to disconnect the power and before turning on you push and hold two buttons the 3 and 6 continue holding when you power on radio.

Car Audio &... • Answered on Jun 09, 2020


English version operation manual

Car Audio &... • Answered on Jun 04, 2020


Blue light is an indicator of being damaged or crashed, check your MRP.

Car Audio &... • Answered on Jun 03, 2020


Should there be something that you are missing?

Car Audio &... • Answered on May 30, 2020


please help me too i ve the same problem [email protected], thanks

Car Audio &... • Answered on May 25, 2020


I had tried cleaning the lens like most solutions said to do, with no luck. I tried what user gthumm said he/she tried, which was taking off the back of the player. Their problem was the white wheel (motor) and the next wheel (black) were not turning smoothly. He/she pushed the white wheel down until it snapped back in, allowing the wheels to turn. I tried it twice and finally, I have a working portable dvd player again! Yeah! Thank you so much gthumm and fix ya team! My kids especially thank you! You are the BEST!

Car Audio &... • Answered on May 19, 2020


To disable the voice prompts feature, make sure the speaker is on, then press and hold the + and - buttons simultaneously until you hear "voice prompts off." To activate voice prompts, make sure the speaker is on, then press and hold the + and - buttons simultaneously until you hear "voice prompts on."

Car Audio &... • Answered on May 16, 2020


https://www.youtube.com/watch?v=GGHQ0W-cvS4 Use the phone sensor to determine if there's an object and dark/lock the screen so your face don't type random stuff + disable the speaker option in settings, if you lift the phone again it reverts, if you have earphones plugged in this feature is automatically disabled. https://support.discord.com/hc/en-us/community/posts/360043117852-Automatic-speaker-enable-disable-option-PHONES-

Car Audio &... • Answered on May 16, 2020


Any good car audio repair shop will be able to read the code for you.

Car Audio &... • Answered on May 13, 2020


The.manufacturer's website support page might be your best bet.

Car Audio &... • Answered on May 05, 2020


The guy wants to change the original language of his car stereo from japanese to english or spanish. I have the same problem, too. Is there a software or something able to change the stereo language? Mine has a touch display, and I like to keep the original stereo. Is anybody who could help me? Thanks a lot.

Car Audio &... • Answered on Apr 30, 2020


https://www.zillerstore.com/post/n1-and-n2-fuses-blow-when-utility-power-comes-back-9946159

Car Audio &... • Answered on Apr 27, 2020


https://www.youtube.com/watch?v=OY_Lp2itt8I

Car Audio &... • Answered on Apr 27, 2020

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