McIntosh MA8900 User Manual

10
The MA8900 Power Amplifier, together with an ad-
ditional separate Power Amplifier, may be used to
Bi-Amplify a Loudspeaker System. In the illustration
on this page, the Power Amplifier of the MA8900 is
connected to the Midrange/High Frequency Section
of the Loudspeaker. The additional separate Power
Amplifier is connected to the Low Frequency Section
of the Loudspeaker System.
Warning: The Loudspeaker System used for
Bi-Amplification must have the
jumpers removed from between the
MID/HIGH and LOW Frequency
Sections of the Loudspeaker System.
Failure to remove them could result
in damage to the MA8900 and/or the
separate Power Amplifier.
MA8900 Connections:
1. Remove the “McIntosh Jumpers” from between
the OUTPUT 1 Jacks and the PWR AMP In Jacks
located on the Rear Panel of the MA8900.
Note: Place the “McIntosh Jumper” in a safe place
for possible future use.
2. Using a pair of shielded RCA Type Audio “Y”
Adapters connect the OUTPUT 1 Jacks to the
PWR AMP In Jacks, for both Left and Right
Channels.
3. Connect the remaining unconnected part of the
“Y” Adapters to the separate Power Amplifier.
4. Referring to the Loudspeaker Connection Instruc-
tions on page 11, and in the Owner’s Manual sup-
plied with the Power Amplifier and Loudspeaker,
connect the MA8900 Output Terminals to the
Loudspeaker MID/HIGH Input Terminals.
Note: The Loudspeaker Connection illustrations
on this page are for the Left Channel. Con-
nect the Right Channel Loudspeaker in the
same manner.
Connecting for Bi-Amplification
Connecting for Bi-Amplification
+
-
Left Channel
Loudspeaker
“Y” adapter Cable
Power Amplier

McIntosh MA8900 Specifications

General

Power Output per Channel (8 Ohms)	200 Watts
Power Output per Channel (4 Ohms)	200 Watts
Number of Channels	2
Total Harmonic Distortion	0.005%
Input Impedance	20k ohms
Speaker Impedance Taps	4, 8 Ohms
Rated Power Band	20Hz to 20kHz
Headphone Output	Yes
Home Theater PassThru	Yes
Tone Controls	Bass and Treble
Tone Bypass	Yes
High Drive Headphone Amplifier	Yes
Digital USB Input	1
Digital Coaxial Input	2
Digital Optical Input	2
Digital MCT (DIN) Input	1
Power Output per Channel	200 Watts
Frequency Response	+0, -0.5dB from 20Hz to 20, 000Hz
Dimensions (W x H x D)	17.5 x 9.5 x 22 inches
Weight	75 lbs (34 kg)
Dynamic Headroom	2.0dB
Damping Factor	>40
Preamplifier Inputs	1 Balanced, 6 Unbalanced
Variable Outputs	1 unbalanced, 1 balanced
Power Requirement	120V 50/60Hz
Digital Input Sample Rate	192kHz
Standby Power Requirement	<0.5 Watts
Digital Input Bit Depth	Up to 32-bit