McIntosh MC207 User Manual

17
Technical Description
higher distortion of many non-feedback designs.
All transistors are selected to have nearly constant cur-
rent gain over the entire current range they must cover.
Output transistors in par-
ticular, have matched
uniform current gain,
high current-bandwidth
product and large active
region safe operating
area. To accommodate
the high current demands
of a 4 ohm loudspeaker,
the MC207 Output Cir-
cuitry utilizes a multi-
plicity of power output
transistors. Refer to fig-
ure 14. An automatic
tracking bias system
completely eliminates
any trace of crossover
distortion. Precision
metal film resistors and
low dielectric absorption
film capacitors are used
in all critical circuit loca-
tions.
Figure 13
Block Diagram of the Amplifiers
and
Meter Circuitry
(One of Seven Channels Illustrated)
Figure 14
The MC207 is the first McIntosh Power Amplifier to
use the newly developed Dynamic Power Manager
TM
(DPM) Circuitry. Refer to figure 15 on the next page.

McIntosh MC207 Specifications

General

Damping factor	140
Amplifier class	-
Frequency range	10 - 100000 Hz
RMS rated power	1400 W
Output impedance	8 Ω
Audio output channels	7.1 channels
Peak power per channel	200 W
Signal-to-Noise Ratio (SNR)	112 dB
Total Harmonic Distortion (THD)	0.000 %
XLR in	Yes
Speakers connectivity type	Binding post
Purpose	Home
Product color	Black
Volume control	Rotary
Connectivity technology	Wired
Maximum current	12 A
AC input voltage	120 V
AC input frequency	50 - 60 Hz

Weight and Dimensions

Depth	533 mm
Width	445 mm
Height	239 mm
Weight	37600 g