The Model 501 is a 500-watt
monaural amplifier enclosed in a chassis milled from a solid block of
aircraft-grade aluminum. We believe that this approach to isolation contributes
significantly to the amplifier’s ability to isolate delicate audio circuitry from
external vibrations and electromagnetic fields. The Model 501 incorporates
advanced digital output devices that, when driven precisely, provide an
extremely accurate transfer of energy from amplifier input to output. Midrange
sonics are rendered in smooth and linear fashion, while bass is tight and
defined. Treble frequencies are extended and refined. Its incredible power
reserves allow it to accurately reproduce the mightiest orchestral crescendos
while maintaining the delicate filigree of quiet musical passages. The 501
enclosure never heats up much beyond body temperature and can be placed
virtually anywhere within the listening environment. The remarkable size and
weight of the 501 allows for placement rarely noted in previous high-power
amplifiers. The 501 is designed to successfully drive the great majority of
modern loudspeakers available today.
input connector for balanced system configuration.
coupled input provides universal compatibility with other components and
ground loop noise and EMI.
efficiency output section generates high power output with very little heat.
circuit topology implemented from input to output.
switch-mode power supply technology ensures consistent performance under all
remote ON/OFF remote power switching via 1/8” jack on rear panel.
approved speaker output terminals require no tools for secure, low resistance
transient-free operation during power ON/OFF switching.
resonance, structurally rigid chassis constructed of precision-machined
physical size and weight.
low idle power consumption.
Model 501 Specs
@ 8 ohms - 500 watts @ 4 ohms - 1000 watts
5 Hz - 45kHz, 3dB
Common Mode Rejection Ratio:
>90dB, 20 Hz 20 kHz
Peak Output Current
> 45 amps
Non-inverting, Pin 2 Positive
1 x Balanced XLR (Unbalanced
operation requires an optional XLR to RCA adapter)
Load Impedance Range:
2 ohms - 16 ohms
1 Pair CE-Approved Binding Posts
CCIF Intermodulation Distortion,
Idle - 15 watts Maximum - 1300
Damping Factor @ 1 kHz:
17.0 lbs/7.8 kg.
Selectable Internal Jumper, 26 or
2.85" x 8.4" x 13.0"