OEM Factory Amp Interface - Car Stereo Speaker Level Converter
Product highlights
• OEM Amplifier Interface
• 80 watts x 4 chan.
• Speaker level converter
The OEA-4 Factory Amp Interface is a non-electronic interface device which allows an Aftermarket Stereo to integrate into most Factory Amplified Systems, such as Bose or JBL equipped vehicles.
The OEA-4 interface is equipped with output level gain controls that can be adjusted for proper sound level matching. This is done by adjusting the gains of each of the 4 channels through the appropriate small access holes on top of the OEA-4's case. A very small flatblade screwdriver is require to perform the adjustments.
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Manufacturer:
Model Number:
OEA4
Weight:
0.25lbs
Internal SKU:
oea4
Internal Product ID:
10061
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For 1999 Nissan Maxima
I would recommend this product for owners with a factory Bose system. Easy to install. I think it has a better sound after the install.
20 found this helpful
Good
Easy to set up on head unit wire layout was easy to read and that's it you get wat u pay for
21 found this helpful
Works perfetly in 2000 Miata.
Item worked perfectly in 2000 Miata with bose system amplifer.
Adjustable output provided optimum sound quality with factory bose speakers.
20 found this helpful
Well Built and Easy to Use
I needed a compact line out converter with balanced inputs and outputs, along with DC blocking. The Scosche OEA4 fit those requirements. It uses electrolytic coupling capacitors to block DC and balanced resistive attenuation circuits to drop the signal level. I measured the minimum attenuation at 13.5dB. From that level, a pot on each channel allows you to drop the level progressively to zero. I needed 20dB of attenuation and that was easy to get by adjusting the pots. The input impedance is around 500 ohms. I did not measure frequency response, but found no degradation of sound.
The OEA4 was well built and about the size of a deck of cards (but twice as thick) making it small enough to fit where I needed it to go. The wire leads were pre-stripped and tinned, making soldering easier. The wire colors followed the standard speaker color code.
19 found this helpful
Fixed My Static Problem
My aftermarket HU and my factory amp were not getting along. Even with the engine off I could hear distortion (static) through the speakers and the volume on the HU was extremely loud even with the volume at 3. Installation was a snap once I stripped the factory soldered ends of this unit. Installed in about 40 minutes soldering it into the harness. Fired it up to the "sound of silence". A ground loop isolator did nothing for me but this did the trick right away. I fine tuned the gain to optimize the sound and the system sounds great now. Durability is a 4 because all I've done is install but I see no reason it would not hold up fine.
Verified purchase
7 found this helpful
Nice simple product
It allowed me to lower my head units output level to match my factory amp which gave better bass response at low volume from my sub.
4 found this helpful
it solve my problem
Product works very well I have no problems with it and it was shipped fast
2 found this helpful
Best 100%
Greta for its value, works as it should. Would recommend me it to everyone.
1 found this helpful
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.
