the sub was fitted by Turners Alarms & Audio a year or so ago and it blew me away. the sub is quality. Very loud, very clean, gives a good round sound but still able to drop low and hard. Only down side is there is a slight split in the rubber that covers the screws but this in no way effects the sound and isnt really that noticeable.
the sub comes in a fully sealed box, finished with black/gray mix acoustic carpet.
this sub is capable of 136 dB @ 35-120Hz which from a 10" sub is unreal
# Peak power handling: 550 Watts
# Nominal power handling: 300 Watts Rms
# Frequency response: 28 - 200 Hz
# Impedance: 2 x 2 Ohms @ 100Hz
there still RRP at £230 but im willing to let it go with the box for £150 ono.
http://www.caraudiodirect.co.uk/rainbow-amboss-10.htmlfeel free to ask any questions.