HERTZ Dieci Series DCX-1003 4" Two-Way Coaxial Speakers - Pair

I like the purchase and happy with the speakers. I replaced a set of speakers on my BMW K1600GT motorcycle. They sounded significantly better than my stock BMW speakers even without the new amp. With the addition of the amp (300W 2ch) I don't turn it up much past half volume and its loud and clear. These mind you, are 4-inch coaxial speakers. You don't and won't get strong base from these or any other 4 in speaker. But it's what I had to work with. The speakers are strong, and the sound is full and clear. At high volume levels i sensed some distortion so i flattened the base and treble levels and washed the distortion out. Loud and clear is my grade on these, love them and would definitely purchase again.

I have extensive experience installing and using aftermarket audio systems, including expensive speakers, amps, dsp, subwoofers, etc. These speakers produce crisp highs and midrange for a coaxial 4". You should not expect much low bass response below 300hz from these or any other 4" speaker in an open baffle car audio install. On my otherwise factory RX 350 202110 speaker system I replaced all (3) of my 4" dashboard speakers with these. The Hertz 100.3 being 92dB means the volume is about one click higher than before on the same power vs the factory speakers. The details are more crisp, the off axis response firing into the windshield sounds excellent, Hertz states these are designed to work well off axis (that means not pointed directly at your ear). I considered the Infinity 4032 which is about half of the price of these, but the tweeter material on the Hertz is superior so these probably sound better.

These worked great as an upgrade for the factory speakers on the 1978 Mercedes. Great sound for the tiny size. Installation was easy, bu that will depend on your car. For the head unit, we have a RetroAudio Europa. The radio is rated to 25w and speakers are 30w, so a good match.

I replaced the stock, (non Bose) rear speakers in my 2007 Porsche 911 and was amazed by the sound. I am not a professional car audio installer but had no problems modifying the plate for the OEM speakers to fit the larger 4 inch wide 1.7 inch deep DCX 100.3 speakers. The sound is awesome.

Great speakers for the upgrade in my SUV. So far only replaced the ones in my dash, but going to continue replacing others with these same speakers.

These speakers are a huge upgrade from the originals on my 1985 Mercedes 380SL R107. It was very easy to install and fit perfectly. They do NOT require trimming the plastic inside the car in order to make them fit, unlike other speakers. The holes align very well. The only time consuming part is you have to remove the positive and negative connections from the old speakers and SOLDER them onto the new speakers.

Great delivery. Received the product a day before it was promised, which worked out terrific because it was still the weekend and I could install them immediately. The speakers are a great improvement over the 45 year old speakers in a 1980 Mercedes.

These failed after a year and Hertz won't cover it. TRASH- don't buy it and waste your money. The quality is no good amd won't last.