CEDIA 2009

New at CEDIA from Mark Levinson is the No.500H series of power amps, including the No.531H (mono, 300W, $6500), No.532H (two channels, 300Wpc, $8000), and No. 533H (three channels, 300Wpc, $10,000), and No.535H (five channels, 200Wpc, $12,000), all with a frequency response from 10Hz to 20kHz and THD less than 0.5%. A new circuit design emphasizes current-mode operation, which is said to be much faster than conventional voltage-mode operation. Independent power-supply components for each channel maximize isolation and improve imaging, and all models provide both single-ended and balanced inputs.