O W N E R ' S M A N U A L
ZoneMaster Z-12 High Current A mplifier
www.parasound.com
1
Table of Contents
Important Safety Instructions .........................................................................................3
Figure #1 Zonemaster Z-12 Front and Rear Panel Drawings .......................................4
Introduction ......................................................................................................................6
Installing and Rack Mounting .........................................................................................6
Ventilation Requirements................................................................................................6
Connecting the Zonemaster Z-12 ...................................................................................7
Speaker Connections ......................................................................................................9
Automatic T urn On Options.............................................................................................11
AC Power Connections and AC Grounding ...................................................................12
Operating Y our Zonemaster Z-12....................................................................................12
Maintaining Y our Parasound Amplifier...........................................................................13
In Case of Trouble.............................................................................................................14
Parasound Zonemaster Z-12 Specifications .................................................................16
Special Features of the Parasound Zonemaster Z-12
50 Watts Per Channel into 8 Ω, Less than 0.2% THD
100 Watts Per Channel Pair Bridged into 8 Ω, Less than 0.2% THD
10 Amperes Peak Current Per Channel
Direct Coupled with DC Servo Circuitry
Encapsulated 1.2 kVA Toroidal Power Transformer
120,000 µF Distributed Power Supply Capacitance
24 Discrete High Speed Output Transistors
Automatic Power On-Off by 9 V to 12 V Trigger or Audio Signal
Occupies Four Rack Spaces in a 19-inch Equipment Rack
Modular Construction
Multiple Relay Protection
Level Controls for Each Channel
Gold-Plated RCA Input Jacks
Gold-Plated 5-Way Speaker Terminals
Impedance Protection Switches
Left and Right Input Buses
Looping Output Connectors
Current Overload Indicators
Rear Carry Handles
Removable IEC AC Cord
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IMPORTANT SAFETY INSTRUCTIONS
The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert the user to
the presence of “dangerous voltage” inside the product that may constitute a risk of electric shock.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important
operating and maintenance instructions in the literature accompanying the product.
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
1. Read Instructions — Read all the safety and operating instructions before operating this product.
2. Retain Instructions — Retain safety and operating instructions for future reference.
3. Heed Warnings — Adhere to all warnings on the product and in the operating instructions.
4. Follow Instructions — Follow all operating and use instructions.
5. Cleaning — Unplug this product from the wall outlet before cleaning. Use a damp cloth for cleaning. Clean the
outside of the product only.
6. Attachments — Do not use attachments that are not recommended by the product manufacturer; they may be
hazardous.
7. Water and Moisture — Do not use this product near water.
8. Accessories — Do not place this product on an unstable cart or stand. The product may fall, causing bodily injury
and damage to the product. A product and cart combination should be moved with care. Quick stops, excessive
force, and uneven surfaces may cause the product and cart to overturn.
9. Ventilation — Slots and openings in the cabinet are provided for ventilation to ensure reliable operation of the
product and to protect it from overheating. These openings must not be blocked or covered. This product should not
be placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided.
10. Power Sources — Operate this product only from the type of power source indicated on the label. If you
are not sure of the type of power supply to your home, consult your dealer or local power company. This product is
equipped with a three-prong grounding plug. This plug will only fit into a grounding power outlet. If you
are unable to insert the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not defeat the
safety purpose of the grounding plug.
11. Power Cord Protection — Power supply cords should be routed so that they are not likely to be walked on or
pinched by items placed upon or against them.
12. Lightning— Unplug the unit from the wall outlet for added protection during a lightning storm and when it is left
unattended and unused for long periods of time. This will prevent damage to the product due to lightning and power
line surges.
13. Overloading — Do not overload wall outlets or extension cords. This can result in a fire or electric shock.
14. Inserting Objects into Unit - Never push objects of any kind into this product through any openings; they may
touch dangerous voltage points or short out parts that could result in fire or electric shock.
15. Servicing — Do not attempt to repair or service this product yourself. Opening or removing covers may expose you
to dangerous voltage and other hazards. Refer all servicing to qualified service personnel.
16. Damage Requiring Service — Unplug this product from the wall outlet and refer servicing to qualified service
personnel under the following conditions: a) If the power-supply cord or plug is damaged. b) If liquid has been
spilled into the product. c) If the product has been exposed to rain or water. d) If the product does not operate
normally by following the operating instructions. e) If the product has been dropped or damaged in
any way. f) If the product exhibits a distinct change in performance.
17. Replacement Parts — When replacement parts are required, be sure the service technician has used replacement
parts specified by the manufacturer. Unauthorized substitutions may result in fire, electric shock, and other hazards.
19. Safety Check — Upon completion of any service or repairs to this product, ask the service technician to perform
safety checks to determine that the product is in proper operating condition.
20. Wall or Ceiling Mounting — Mount the product to a wall or ceiling only as recommended.
21. Heat — The product should be situated away from heat sources such as radiators, heat registers, stoves, and other
products (including amplifiers) that produce heat.
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Loop Out
Loop Out
Input Bus
Lift - Normal
Ground
Input
Trigger
+12 V
Trigger
Manual
+12 V
Normal
Sensitivity
Min Max
Audio
RL
Ch 1 Ch 2
Ch 1
Bridged
8 Ω 4 Ω
8 Ω 4 Ω
Ch 2
Ch 3 Ch 4
Local
Normal
Remote Enable
Remote Enable
Bridged Mono
Ch 2 In
Normal Bridged Mono
Ch 4 In
R L R+L Bus
Local
R L R+L Bus
Ch 3 Ch 4
Local
R L R+L Bus
Local
R L R+L Bus
Local
R L R+L Bus
Local
R L R+L Bus
Ch 5 Ch 6
Ch 5
Bridged
8 Ω 4 Ω
Ch 6
Normal
Remote Enable
Bridged Mono
Ch 6 In
Bridged
WARNING
8 Ω 4 Ω
Ch 7 Ch 8
Remote Enable Remote Enable
Normal Bridged Mono
Ch 8 In
Ch 7 Ch 8
Local
R L R+L Bus
Local
R L R+L Bus
Ch 9 Ch 10
Ch 9
Bridged
8 Ω 4 Ω
Ch 10
Local
Normal
Remote Enable
Bridged Mono
Ch 10 In
Local
Bridged
8 Ω 4 Ω
Ch 11 Ch 12
T15A 115-120 Area
T8A 230V-250V Area
AC 115 V 60 Hz
AC 230 V 50 Hz
Power Consumption: 1100 W
Normal Bridged Mono
Ch 12 In
Ch 11 Ch 12
Local
R L R+L Bus
Local
R L R+L Bus
Bridged
To Prevent Fire Or Shock Hazard
Do Not Expose This Unit To Rain Or Moisture
AVIS
:
RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR
High Current Multi-Amplifier
Parasound Products, Inc
San Francisco, CA U.S.A.
ZoneMaster Z-12
CAUTION:
To Prevent Electric Shock, Do Not
Remove Cover. No User Serviceable
Parts Inside. Refer Servicing Only
To Qualified Service Personnel
.
Level Control
Local Input Jack
Left and Right
Loop Out Jacks
Left and Right
Input Bus Jacks
Input Assignment Switch
Ground Lift
Switch
Fuse
Receptacle
+12 V Trigger Input
and Loop Out Jacks
Mono Bridge Switch
Mono Bridged
Input Jack
Carry Handle
Audio Trigger
Sensitivity
Adjust
Impedance
Select Switch
Remote Enable Jack
Five-Way
Speaker Terminals
AC Connector
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