The Meyer Sound HD-1 is an active biamplified two-way
system comprising an 8-inch cone driver and 1-inch soft dome tweeter in
a vented cabinet. The low-frequency driver features an exceptionally large
magnet structure and 2-inch voice coil for high efficiency and rapid heat
dissipation. The tweeter is a specially developed, impregnated silk dome
that affords extremely smooth response while minimizing breakup and coloration.
The Meyer Sound HD-1 presents an active balanced input (switchable for
+4 dBu or –10 dBV nominal operating level) and an active crossover
with optimized pole-zero filter combinations for acoustical transparency
and linear phase.
The integral power amplifier features complementary MOSFET output stages
operating as class A at low-to-moderate levels (less than 90 dB SPL) and
class AB at high levels. The HD-1’s free-field frequency response
is flat within ±1 dB from 40 Hz to 20 kHz, and it delivers high
peak SPL with greater than 100 dB dynamic range and extremely low distortion.