Hey guys,
So i'm trying to choose between JBL GTO938 & Alpine SPS69C2. There's a shop in F-10 that has both of them.
Alpine SPS69C2 are for 6k (sticker on the bottom says made in china):

Power Handling Capacity (RMS): 50W
Power Handling Capacity (Peak): 250W
Tweeter:
- 1" Silk Soft Dome Tweeter
- Swivel Capabilities
- Neodymium Magnet
Woofer:
- Aluminum Coated Polypropylene Cone
- Nomex® Spider
- Square Voice Coil Wire Design
- Lightweight Air-Injected Rubber Edge
- Custom Fit Spacer
Frequency Response: 30Hz - 30kHz
Impedance (Nominal): 4 Ohm
JBL GTO938 are for 6.5k:

- Power Handling, RMS 100 Watts
- Power Handling, Peak 300 Watts
- Frequency Response (±3dB) 45Hz – 21kHz
- Sensitivity 94dB
- Impedance 2 Ohms
Which one should i go for? I'm going to be using them with my four channel amp. The JBL are slightly more powerful & three way. While the Alpine's are two way. I'm not exactly sure what the impedance signifies? I won't be using a woofer for now, maybe i'll get components in the future. So i just want the speakers with the best quality used with an amp.