Bookshelf Speaker Reviews

Diamond 220 (purple) +1.44/–4.56 dB, 200 Hz to 10 kHz; –3 dB @ 99 Hz, –6 dB @ 76 Hz; impedance minimum 4.35 ohms @ 224 Hz, phase angle –35.10º @ 120 Hz; sensitivity 87 dB, 500 Hz to 2 kHz.

Diamond 220C (green) +2.71/–3.73 dB, 200 Hz to 10 kHz; –3 dB @ 83 Hz, –6 dB @ 70 Hz; impedance minimum 4.26 ohms @ 213 Hz, phase angle –43.44º @ 3.6 kHz; sensitivity 87 dB, 500 Hz to 2 kHz.

WH-D10 (blue) Close-miked response, normalized to level @ 80 Hz: lower –3 dB @ 37 Hz, –6 dB @ 34 Hz, upper –3 dB @ 553 Hz using LFE input.—MJP