This unit works GREAT. Using VERY Good audio 1:1 transformers, you get CLEAN Audio transfer with frequencies all the way down to 30 Hz. Thanx for offering this at a very reasonable price..... As a broadcast engineer, this device is equal-to and even BETTER than similar devices costing two to ten-times the price. Well worth the money.
Verified purchase: Yes | Condition: New
I was at my wits end with engine noise/whining in my 05 Dodge Magnum. Tried everything. Swap head unit. Replace RCA cables. Changed location of ground for head unit and amp. New amp. Bypass the crossover and run RCAs directly to the amp. Lower the gains on the amp and crossover. None of these things worked. Purchased two of these filters and finally the noise is gone. Plugged in right between the crossover and amp. Easy installation. Complete satisfaction.
Verified purchase: Yes | Condition: New
Removed the pop when using certain functions from aftermarket radio using factory amp. Sound quailty seems unchanged as well.
Verified purchase: Yes | Condition: New
Go rid of the whining noise in my car while charging a phone and listening to music at the same time. Highly recommended
Verified purchase: Yes | Condition: New
Just got and installed mine today. So far no issues, and seems to sound better than my old Radio Shack ground isolator. Only hiss left over is from the internals of the amplifier itself.
Verified purchase: Yes | Condition: New
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