Tower Speaker Reviews

ESL X (purple) +1.33/–3.35 dB, 200 Hz to 10 kHz; –3 dB @ 62 Hz, –6 dB @ 49 Hz; impedance minimum 1.77 ohms @ 17.4 kHz, phase angle –68.81º @ 5.9 kHz; sensitivity 89 dB from 500 Hz to 2 kHz.

ESL C (green) +4.35/–3.52 dB, 200 Hz to 10 kHz; –3 dB @ 64 Hz, –6 dB @ 52 Hz; impedance minimum 2.90 ohms @ 2.4 kHz, phase angle –58.38º @ 82 Hz; sensitivity 88 dB from 500 Hz to 2 kHz.

Dynamo 1500X (blue) Close-miked response, normalized to level @ 80 Hz: lower –3 dB @ 19 Hz, –6 dB @ 17 Hz, upper –3 dB point @ 130 Hz with Low Pass Filter control set to maximum.—MJP