Ground Zero Iridium speakers are very good choice for smaller budget. They offer very good price/quality ratio. Coaxials and separate systems are offered with normal and shallow mounting depth.
10 cm / 4″ Flat 2-Way Compo system
extra flat only 30 mm / 1.18″
4 ohm, 60 / 100 W, 70 Hz – 20 KHz
Coated paper cone, Resonance free GZ steel basket
19 mm / 0.75″ silkdome tweeter
12 dB cable-crossover incl. tweeter protection