20 Most Recent Ultra Linear UL-4475S Car Audio Amplifier Questions & Answers


You need to calibrate put a DVD in on the remote press stop,zoom, up, down screen should pop up touch the cross touch the cross at each corner u will see ok turn off and back on and try it

Car Audio &... | Answered Yesterday


That image just shows that you have chosen Auxiliary Input, can't see the red dots. Looks like you just need to reconfigure it.

Car Audio &... | Answered 2 days ago


Tip & How-To about Watches

Changing Watch Batteries
Lots of posters ask "what is the battery in my (name of watch)" with a view to changing it yourself. This is a bad idea for many reasons. You don't have the tools or knowledge to remove a rotary screw on back, or the gasket sealant for a waterproof watch. Some fashion watches have 4 traditional screw and need professional grade jeweler screwdrivers. Also, there are about 20 batteries commonly used in watches, in various sizes and internal technology, Lithium Ion, Silver Oxide and Manganese Alkaline. If you buy them, you generally have to buy 10!

Don't sweat the details. Just take the watch to your local jeweler. They have all the batteries at hand and the tools to remove the back. It is done whilst you wait for $8 to $15!
Posted by Andrew... on Dec 31, 2018

Car Audio &... | Answered on Jan 21, 2020


There are lots of suggestions, specs and plans for loudspeaker enclosures available online with accompanying formulas for calculating sizes of boxes, ports, etc., but successful results tend to be achieved by experience as much as following plans and tuned port reflex enclosures are akin to the black arts - hifi purists would change the port size after a "bedding in" time for the enclosure and drive unit.

Your subs are rated at 300 rms so clearly you are overloading them at 350/400 and you should be aiming to max them at around 250 in a reflex cabinet. If you really must drive them so hard you really need to consider an infinite baffle as an alternative enclosure.

Car Audio &... | Answered on Jan 18, 2020


ASK GOOGLE OR THE MFG WE DO NOT HAVE IT HERE

Car Audio &... | Answered on Jan 12, 2020


take help from online websites that have this service like helping in repair some like reliable-store have instant help.. others are a bit slow which I don't prefer... rest is up to u.. U can also get free manuals

Car Audio &... | Answered on Jan 11, 2020


You must probably be using a incompatible version of android phone.It support all i-phone and i-pod but not all androids. It has a Android Media Control, which allows connection of a compatible Android device via the USB port. Please use AUX cable if this is the case.

I welcome your feedback , if it helps you.

Thanks

Car Audio &... | Answered on Jan 09, 2020

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