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5

Performance Features

• 

Patented LD/HP Technology

The McIntosh Loudspeaker Element features the patented

LD/HP motor structure. This design, when compared to

conventional Loudspeaker Elements, reduces distortion

significantly. It also increases power handling and

efficiency.

·

Power Guard

The patented McIntosh Power Guard circuit prevents the

PS112’s Amplifier from being overdriven into clipping,

with its harsh distorted sound that can also damage your

valuable loudspeaker.

•

 

Flared Acoustic Bass Port

The Acoustic Bass Port in the PS112 has Flared Front and

Rear openings to eliminate air movement noise.

• 

Shielded Magnetic Field

The PS112 may be used in Home Theater Installations near

a television receiver or monitor without causing the

television image to degrade. McIntosh has designed special

shielding around the magnetic structure of the PS112’s

Loudspeaker Element to prevent interference.

•

 Remote Power Control

The turn-on method uses a standard McIntosh Power Con-

trol jack to receive a turn-on signal from a McIntosh Con-

trol Center. The alternate turn-on method for the PS112 uti-

lizes signal-sensing circuitry.

•

 Low Distortion

The PS112’s Amplifier has very Low Total Harmonic Dis-

tortion. This THD rating combined with the low distortion

of the McIntosh LD/HP Driver provides exceptionally

smooth and clean low frequency response.

•

 Bass Enhance

The Bass Enhance Switch provides a Low Frequency Bass

Boost for use with video sources to enhance the impact of

low frequency sound effects.

•

 Phase Switch

The Phase Switch can be set to 0

0

 or 180

0

 to avoid phase

cancellation.

•

 Sub Frequency Filter

The variable Sub Frequency Filter selects the low frequen-

cies sent to the PS112’s Power Amplifier when used with a

full range source signal.

•

 Hi-Pass Filter

The variable Hi-Pass Filter selects the midrange and high

frequencies sent to the Hi-Pass Out Jacks for use with an

external power amplifier and loudspeakers.

·

Sentry Monitor and Thermal Protection

McIntosh Sentry Monitor power output stage protection

circuits ensure the PS112 will have a long and trouble free

operating life. Built-in Thermal Protection Circuits guard

against overheating.

• 

Gold Plated Input Connectors

The PS112 input connectors are gold plated for superior

corrosion resistance and high electrical conductivity.

Summary of Contents for PS112

Page 1: ...McIntosh Laboratory Inc 2 Chambers Street Binghamton New York 13903 2699 Phone 607 723 3512 FAX 607 724 0549 Owner s Manual PS112 PS112 Powered Subwoofer ...

Page 2: ...ptacle or other outlet unless the blades can be fully in serted to prevent blade exposure Attention pour pevenir les chocs elecriques pas utiliser cette fiche polarisee avec un prolongateur une prise de courant ou un autre sortie de courant sauf si les lames peuvent etre inserees afond ans en laisser aucune partie a decouvert 7 Unplug this equipment during lightning storms or when unused for long ...

Page 3: ...ock or other hazards 26 Upon completion of any service or repairs to this prod uct ask the service technician to perform safety checks to determine that the product is in proper operating condition Customer Service Technical Assistance Please Take A Moment Thank You Copyright 2001 ã by McIntosh Laboratory Inc The serial number purchase date and McIntosh dealer name are important to you for possibl...

Page 4: ...ted amplifier to the inputs of the PS112 Powered Subwoofer The McIntosh PS112 Powered Subwoofer is designed for Home Theater and Music Reproduction It has a 12 inch LD HP1 woofer a 400 watt amplifier and built in high and low pass filters The PS112 Powered Subwoofer s performance is equivalent to the quality of McIntosh s legendary line of Amplifiers Preamplifiers Signal Processors Signal Sources ...

Page 5: ...The alternate turn on method for the PS112 uti lizes signal sensing circuitry Low Distortion The PS112 s Amplifier has very Low Total Harmonic Dis tortion This THD rating combined with the low distortion of the McIntosh LD HP Driver provides exceptionally smooth and clean low frequency response Bass Enhance The Bass Enhance Switch provides a Low Frequency Bass Boost for use with video sources to e...

Page 6: ...can assist in determining the best location for your PS112 Powered Subwoofer There is additional information on page 8 pertaining to installing the PS112 PS112 Dimensions Front View of PS112 with Grille Removed Rear View of PS112 ...

Page 7: ...7 PS112 Dimensions Side View of PS112 with Grille Side View of PS112 with Grille Removed ...

Page 8: ...he use of a real time spectrum analyzer RTA oper ated by an experienced system installer An uncompromis ing installation would take into consideration the floor wall and ceiling coverings the type and placement of furni ture and can even include the architectural design of the room and its construction materials The frequencies repro duced by the PS112 Powered Subwoofer are non direc tional The PS...

Page 9: ...ig nals from a McIntosh component and the POWER CONTROL OUT sends the turn on off sig nal to the next McIntosh component Main Fuse holder refer to information on the back panel of your PS112 to determine the cor rect fuse size and rating LINE IN Jacks accept signal from output of a control cen ter and the HI PASS OUT Jacks send hi pass filtered signals to an additional amplifier and speakers ...

Page 10: ...ystem connect the POWER CONTROL OUT from the first PS112 to the next PS112 POWER CONTROL IN Jack 3 Connect an audio cable from the McIntosh A V Control Center or Surround Decoder Subwoofer Out to the McIntosh PS112 RIGHT or LEFT LINE IN Notes 1 If two or more McIntosh PS112 Powered Subwoofers are being used in the same system use a Y Adapter to connect audio cables from the McIntosh A V Control Ce...

Page 11: ...11 How to Connect for Home Theater To AC Outlet ...

Page 12: ...tosh Power Amplifier Power Control In Jack Note If two or more McIntosh PS112 Powered Subwoofers are being used in the same system connect the POWER CONTROL OUT from the first PS112 to the next PS112 POWER CONTROL IN Jack and then on to the McIntosh Power Amplifier Power Control Jack 3 Connect an audio cable from the McIntosh Audio Con trol Center or Preamplifier Main Outputs to the McIn tosh PS11...

Page 13: ...13 How to Connect for Stereo To AC Outlet ...

Page 14: ...ustic output to bal ance with the other loudspeakers BASS ENHANCE boosts low frequency bass when set to VIDEO SUB FREQUENCY Filter selects the low frequencies sent to the PS112 s Power Amplifier STANDBY LED indicates the unit is not active and is ready to accept a power control command HI PASS FREQUENCY Filter selects the lowest of the frequencies sent to the HI PASS OUT Jacks PHASE reversing swit...

Page 15: ...e PS112 and any other low frequency producing speaker in the system Careful listening with this circuit switched to 0 and then listening with it switched to 180 will help you determine if this effect will be beneficial to the system Set the switch to the desired bass Power When the POWER SWITCH is set to the OFF position the PS112 can not be turned on by a Remote Power Conrol in put or audio input...

Page 16: ...ellation characterized by a loss of bass information between the PS112 and any other low frequency producing speaker in the system Careful listening with this circuit switched to 0 and then listening with it switched to 180 will help you determine if this effect will be beneficial to the system Set the switch to the desired bass Remote Power Control The turn on method uses a turn on signal from a ...

Page 17: ...17 Notes ...

Page 18: ...60Hz at 1 8 amps 230 Volts 50 60Hz at 1 8 amps 240 Volts 50 60Hz at 1 8 amps Low Pass Filter 40 120Hz Variable with the front panel control Hi Pass Filter 40 120Hz Variable with the front panel control Level Control Variable Level Control with the front panel control Power Control In 5 20 VDC Trigger Power Control Out 5 VDC Enclosure Configuration Front Firing Flared Port Design Maximum Sound Pres...

Page 19: ...y Use the original shipping carton and parts only if they are in good servicable condition If a shipping carton or any of the interior part s are needed please call or write Customer Service Department of McIntosh Laboratory Please see the Part List for the correct part numbers Quantity Part Number Description 2 034177 End Cover Top Bottom 2 034153 Side Carton U Shaped 1 034154 Top Foam End Cap 1 ...

Page 20: ...McIntosh Part No 040739 McIntosh Laboratory Inc 2 Chambers Street Binghamton NY 13903 ...

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