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4

Dimensions

The following dimensions can assist in determining 

the best location for your MI254.

Dimensions

Rear View of the MI254

Side View of the MI254

Front View of the MI254

17-

1/2

"

 44.5cm

 3-

15/32

"

  8.8cm

 4-

5/16

"

 11.0cm

13-

1/4

"

 33.7cm

18-

1/2

"

 47.0cm

17-

1/16

"

 43.3cm

  .25"

 .64cm

  2.0"

 5.0cm

13-

19/32

"

  34.7cm

 1-

5/16

"

  3.4cm

  3/16

"

  .5cm

3-

1/4

"

 8.2cm

Front View of the MI254 with Side Mount Brackets

   19"

 48.3cm

16-

1/2

"

 41.9cm

Summary of Contents for MI254

Page 1: ...McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13903 2699 Phone 607 723 3512 www mcintoshlabs com MI254 Four Channel Power Amplifier Owner s Manual...

Page 2: ...miliar with your McIntosh equipment and any other brands that may be part of your system If you or your Dealer wish additional help concerning a suspected problem you can receive technical assistance...

Page 3: ...into clipping with its harsh distorted sound that can damage your valu able Loudspeakers Versatile Operation The MI254 can provide power amplification for four channels in a single Zone A V System or...

Page 4: ...sions Rear View of the MI254 Side View of the MI254 Front View of the MI254 17 1 2 44 5cm 3 15 32 8 8cm 4 5 16 11 0cm 13 1 4 33 7cm 18 1 2 47 0cm 17 1 16 43 3cm 25 64cm 2 0 5 0cm 13 19 32 34 7cm 1 5 1...

Page 5: ...is installed together with other McIntosh Components check clearances on all components before proceeding Cutout Opening for Custom Mounting MI254 Front Panel Custom Cabinet Cutout Support Shelf Chass...

Page 6: ...ut Selector Switch1 CHANNEL 3 Right Input Selector Switch1 CHANNEL 2 Left Input Selector Switch1 CHANNEL 1 Right Input Selector Switch1 BALanced Input CHANNEL 4 Left BALanced Input CHANNEL 3 Right BAL...

Page 7: ...to the respective Channel Left or Channel 4 Left Amplifier Channel 4 Left BALANCED Input Channel 4 Left UNBALANCED Input BUS 2 Left UNBALANCED Input BUS 1 Left UNBALANCED Input Channel 4 Left Switch 1...

Page 8: ...tput Con nections instead of Balanced Connections 3 Place the Input Selector Switches for all four chan nels in the LINE position This McIntosh MI254 Power Amplifier is designed for Loudspeakers with...

Page 9: ...f the cable end into the terminal side access hole Then tighten the terminal cap until the cable is firmly clamped into the terminals so the lugs or wire cannot slip out Refer to figures 6 7 and 8 WAR...

Page 10: ...the A V Control Center Analog Audio Out Zone 2 Left and Right Channel to the MI254 BUS 1 INPUTS making sure to match up channel designations 3 Connect unbalanced cables from the A V Control Center Ana...

Page 11: ...making sure to match up channel designation with Loudspeaker location Insert the spade lug connector or prepared section of the cable end into the terminal side access hole Then tighten the terminal c...

Page 12: ...n impedance of 4 ohms or 8 ohms Connect a single Loudspeaker only to each Channel Output Terminals When connecting Loudspeakers to the MI254 it is very important to use cables of adequate size so ther...

Page 13: ...l side access hole Then tighten the terminal cap until the cable is firmly clamped into the terminals so the lugs or wire cannot slip out Refer to figures 6 7 and 8 WARNING Loudspeaker terminals are h...

Page 14: ...ush Button switches AC Power On or Off Meter indicates Left and Right Channel Amplifiers 1 and 2 Output LED indicates various Channel 2 Circuitry Functions LED indicates various Channel 3 Circuitry Fu...

Page 15: ...4 when switched On 2 There must be a power control connection between the MI254 and the Audio Source Component in order for the Remote Control Operation Power ON OFF to function 3 When the MI254 is re...

Page 16: ...16...

Page 17: ...17 Photos...

Page 18: ...rtion 0 1 maximum if the instantaneous peak power output does not exceed the rated power output for any combination of frequencies from 20Hz to 20 000Hz Wide Band Damping Factor Greater than 85 8 ohm...

Page 19: ...e the original shipping carton and interior parts only if they are all in good serviceable condition If a shipping carton or any of the interior part s are needed please call or write Customer Service...

Page 20: ...cts is the policy of McIntosh Laboratory Incorporated who reserve the right to improve design without notice Printed in the U S A McIntosh Laboratory Inc 2 Chambers Street Binghamton NY 13903 www mcin...

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