You can probably say that one of the best Entry Level car audio 6.5" speakers is the CT Sounds Bio 6.5 Inch Car Audio Coaxial Speakers (Pair). Considering the quality & price of this package, it gives you absolute stunning car audio. The best specialty in these bio speakers is that you can run them off your head unit directly or you can also use an amplifier behind them. For family vehicles, this set is absolutely perfect & highly recommended. Checkout for further technical specifications for the product-

Whats in the box:

• 2 x Bio 6.5" Car Audio Coaxial Speakers

Features:

1. Each speaker has Plastic polypropylene (PP) cone with NBR (Nitrile Butadiene Rubber) surround
2. Black colour PC spider
3. White Zinc coated 3mm front plate
4. Voice coil of 0.8" / 21mm (dia) at each speaker
5. Y30 ferrite magnet at each speaker
6. Each speaker has 13mm silk-dome tweeter
7. Small crossover circuitry beneath the tweeter at each speaker
8. Quality Copper Clad Aluminium Wire (CCAW) used for tweeters connectivity
9. Steel plate type terminals for speaker connectivity, big one for Positive (+ve) & small one for Negative (-ve)
10. Each speaker has black stamp steel basket with black powder paint on them

Technical Specifications:

1. Speaker size: 6.5"
2. Speaker type: Coaxial
3. Impedance per speaker (woofer+tweeter): 4-Ohm
4. Power per speaker: 30W (RMS) | 60W (MAX)
5. Total system power: 60W (RMS) | 120W (MAX)

Woofer:

1. Voice coil (dia): 0.8" / 21mm
2. Sweep voltage: 11 V
3. Output SPL (@1w/1m): 89 dB
4. QTS: 1.186
5. Resonant frequency: 102 Hz
6. Frequency response (@SPL -10dB): 50 Hz ~ 20 kHz
7. Magnet weight: 21 Oz
8. Magnet type: Y30 ferrite

Tweeter:

1. Sweep voltage: 1.8 V
2. Tweeter size (dia): 13 mm
3. Tweeter type: Silk-dome
4. Magnet type: N38H

Crossover:

1. Crossover circuit: 3.3 μF capacitor / 50V

Mounting / Installation Parameters:

1. Cutout diameter: 144mm / 5.65"
2. Overall diameter: 165mm/ 6.50"
3. Mounting depth: 55mm / 2.16"