Just a quick question - I can find no mention of a headphone jack point, do the white 20W's have this?
I don't own them, but
Info from: http://www.vortez.net/articles_pages/microlab_h30_bt_amp_h50_bt_review,2.html2.0 H30 BT
Amplifier
Total power: 24 Watt RMS
Power distribution: 12 Watt x 2 RMS
Harmonic distortion: <0.5 % (1W 1KHz)
Frequence response: 50Hz - 20KHz
Signal/Noise ratio: >75 dB
Seperation: >45 dB
Speakers
Tweeter drive type 0.75”
Tweeter impedance 6 Ohm
Woofer drive type 3.5"
Woofer impedance 4 ohm
Interfaces
Input
2RCA coonection
Bluetooth wireless technology V4.0 and A2DP
NFC contactless connection
Output
RCA to left speaker
Dimensions
135(W) x 225 (H) x 220(D) mm
Accessories
Speaker interconnection cable 1pc
3.5mm stereo to 2 RCA cable 1pc
User manual 1pc