QSC Audio HPR181W, HPR153F, HPR152F, HPR151W User Manual

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HPR Series Powered Loudspeaker Products

User Manual

HPR153F 15-inch three-way
HPR152F 15-inch two-way
HPR151W 15-inch subwoofer
HPR181W 18-inch subwoofer

*TD-000212-01*

TD-000212-01 rev.D

Important Safety Precautions & Explanation of Symbols

Install in accordance with QSC Audio Product's instructions and under the supervision of a licensed Professional Engineer.

WARNING!

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER.

NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the
presence of uninsulated “dangerous” voltage within the product's enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to humans.

The exclamation point within an equilateral tria ngle is intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in this manual.

1- Read these instructions.
2- Keep these instructions.
3- Heed all warnings.
4- Follow all instructions.
5- WARNING: To prevent fire or electric shock, do not expose this equipment to rain or moisture. Do not use this apparatus near water.
6- Clean only with a dry cloth.
7- Allow a minimum of 6” (152mm) clearance at cabinet back for convection cooling. Keep anything that might restrict air flow away from the rear of

the enclosure (i.e draperies, fabric, etc...). Do not block any ventilation openings. This product contains an internal power amplifier that produces heat.
8- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9- Do not defeat the safety purpose of the grounding-type pl ug. The g rounding p lug has two b lades a nd a groun ding prong . The thir d prong is provide d

for your safety. If the provided plug does not fit your outlet, consult an electrician for the replacement of the obsolete outlet. Do not cut off the grounding
prong or use an adapter that breaks the grounding circuit. This apparatus must be properly grounded for your safety.

10- Protect the power cord from being walked on or pinched, p ar tic ularly plugs, convenience receptacles, and the point where they exit from the ap­paratus.

11- This product is not equipped with an all-pole mains switch. To fully disconnect from the A C mains, the AC plug must be removed from the AC outlet
or the appliance coupler (IEC block) must be removed from the amplifier module. Ensure either the AC line cord plug or the appliance coupler are ac­cessible in case of emergency disconnect requirement.

12- Use only attachments/accessories specified by QSC Audio Products, Inc.
13- Use only with hardware, brackets, stands, and components sold with the apparatus or by QSC Audio Products, Inc.
14- Unplug the apparatus during lightning storms or when unused for long periods of time.
15- Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply

cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does
not operate normally, or has been dropped.

16- Before placing or installing any speaker product, inspect all ha rdware, suspension, ca binets, transducer s, brackets and a ssociated equipment for
damage. Any missing, corroded, deformed, or non-load rated component could significantly reduce the strength of the installation, placement or array.
Any such condition severely reduces the safety of the installation and should be immediately corrected. Use only hardware which is rated for the load­ing conditions of the installation and any possible short-term, unexpected overloading. Never exceed the rating of the hardware or equipment.

17- HPR loudspeakers provide no provision for flying or suspension. QSC strongly discourages the use of HPR-serie s loud spea kers in suspended or
flying applications. Consult a licensed, Professional Engineer regarding physical equipment installation. All local, state and national regulations re­garding the safety and operation of equipment are understood and adhered to.

18-HPR152F WARNING! Do not use a loudspeaker support pole longer than 26” (660mm) when supported by QSC’s HPR151W or HPR181W subwoofer.
19- Do not use any HPR product oriented horizontally. Horizontal orientation can cause overheating and thermal limiting. The cooling fins on the am-

plifier module must be vertically oriented in order to efficiently dissipate the heat generated by the amplifier.
20- The appliance shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases, shall be placed on the apparatus.

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Introduction

Congratulations and thank you for your purchase of this professional, powered loudspeaker product. To get the most from your invest­ment, we recommend you review all the information provided in this User Manual.

The HPR self-powered loudspeakers provide excellent sound quality, durable construction and clean, efficient, on-board amplification.
Amplifiers are matched to the drivers with active equalization and precise crossover control. Active power limiting and thermal man­agement extends the life of drivers and the amplifier. The HPR series solves many application challenges with its great sound, built-in
protection systems and self-contained portability. HPR is the perfect solution for public performances, corporate events and private par­ties demanding flexible and excellent sounding system solutions.

All models are self-powered using efficient amplifiers. AC line connection is fast and easy; an IEC-style quick-disconnect ensures reli­able AC mains connection while providing an easy-to-remove power cord for cabinet mobility. Audio enters the self-powered loud­speaker via a female XLR connector with an additional parallel-wired male XLR output for daisy-chaining. No outboard signal
processing is required as all models feature on-board filtering. The two-way and three-way full-range loudspeakers feature a switch­able 100 Hz low-cut filter for use when subwoofers are part of the system. Subwoofer models have two full-range input connectors (left
and right) and two sets of output connectors; one pair featuring a 100 Hz low-cut filter and one pair passing full-range signal.

Rear-panel LEDs alert the user to AC power status, input signal presence, and instances of clipping. Additionally, a blue front-panel
“power on” LED provides valuable visual power confirmation. It can also be disabled for applications where light toward the audience
may interfere with stage aesthetics. All models feature a 21-step detent Gain control allowing precise control and repeatable setup.
The enclosures are made of high-quality plywood and are texture-coated in black. Features vary by model, so please refer to sales bro­chures or the specifications section of this manual for specific model information.

HPR152F Features HPR153F Features

1- Pole Cup (no pole cup on HPR153F) 4- Power Amplifier
2- Handles (2 each) 5- Slip-resistant Feet (4 each)
3- Grill

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HPR151W Features HPR181W Features

1- Pole Cup 4- Power Amplifier
2- Handles (2 each) 5- Slip-resistant Feet (4 each)
3- Grill 6- Casters (HPR181W only)

Full Range Amplifier Detail Subwoofer Amplifier Detail

1- Input and Output Connector(s) 6- Power Switch
2- Gain Control 7- Circuit Breaker
3- Power, Signal, and Clip LED Indicators 8- Serial Number Plate
4- Front LED Switch 9- IEC Power Inlet

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5- 100 Hz Low-Cut Filter Switch (Full Range Only) 10- Phase switch (Subwoofer Only)

Installation

HPR152F WARNING! Do not use a loudspeaker support pole longer than 26” (660mm) when supported by the
HPR151W or HPR181W subwoofer.

Do not rig, fly or suspend this loudspeaker product!

Before placing or installing any speaker product, inspect all hardware, suspension, cabinets, transducers,
brackets and associated equipment for damage. Any missing, corroded, deformed, or non-factory component
could significantly reduce the strength of the installation, placement or array. Any such condition severely
reduces the safety of the installation and should be immediately corrected.

Consult a licensed, Professional Engineer regarding physical equipment installation. Ensure that all local, state
and national regulations regarding the safety and operation of loudspeakers and related equipment are under­stood and adhered to.

HPR152F: The HPR152F was designed to sit on the floor, stage, subwoofer enclosure, or be pole mounted on a

35mm diameter loudspeaker support pole. The pole can be part of a stand-alone loudspeaker stand or be inserted
into the pole cup of the HPR151W or HPR181W. Pole length must be no longer than 26” (660mm) when supported by
the HPR151W or HPR181W subwoofer.

HPR153F: The HPR153F was designed to sit on the floor, stage, or on top of the subwoofer enclosure. Do not
attempt to pole mount this loudspeaker! There is no pole cup provided.

HPR151W: The HPR151W was designed to sit on the floor or on the stage. A pole cup on the top of the enclosure
accepts 35mm loudspeaker mounting poles. Rubber feet on the enclosure’s bottom help to minimize enclosure move­ment during operation. Do not pole mount or stack more than one enclosure on top of the HPR151W enclosure.

HPR181W: The HPR181W was designed to sit on the floor or on the stage. A pole cup on the top of the enclosure
accepts 35mm loudspeaker mounting poles. Rubber feet on the enclosure’s bottom help to minimize enclosure move­ment during operation. Do not pole mount or stack more than one enclosure on top of the HPR181W enclosure. As
the casters will wear during normal use, it may be required to insert small foam pieces between the wheels and
frames to minimize rattling at high output levels.

Cooling

This is a self-powered loudspeaker containing an internal power amplifier that produces heat. Allow a minimum of 6”
(152mm) clearance at cabinet back for convection cooling. Keep anything that might restrict airflow away from the rear
of the enclosure (i.e draperies, fabric, etc...).

Do not use any HPR product oriented horizontally. Horizontal orientation can cause overheating and thermal lim­iting. The cooling fins on the amplifier module must be vertically oriented in order to efficiently dissipate the heat
generated by the amplifier.

Do not install enclosures with their rear panels exposed to direct sunlight. Direct sunlight will heat the amplifier
module and reduce its ability to produce full output. Install sunshades if the application merits.

Maximum ambient temperature for full performance to specification is 40° C. (104° F.).

Do not install enclosures where exposed to rain or other water sources. The enclosure is not weatherproof. Out­door installations must provide protection from the elements.

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AC Mains

Connect AC power to the IEC socket on the back of the amplifier by locating the IEC connector-end of
the AC power cord and inserting it fully into the IEC inlet on the power amplifier module. NOTE: Turn off
the AC power switch before connecting AC power.

The correct AC line voltage is shown on the serial number label, on the rear panel. Connecting
to the wrong line voltage may damage the amplifier or increase the risk of electric shock.

AC Mains Disconnection

Turn the AC power switch to the off position. To remove the AC mains cord, grasp the IEC connector’s
plastic body and pull, removing the connector form the socket.

Power Switch

Push in on the top of the rocker switch to apply AC mains power to the powered loudspeaker. Push in
on the bottom of the rocker switch to turn the powered loudspeaker off.

When turned on, the blue Power indicator LED and the red LIMIT (limiter) indicator LED will illuminate;
after a few seconds the red LIMIT indicator will extinguish.

LED Power Indicator

The blue LED Power indicator will illuminate when the AC Power switch is in the “ON” position, the AC
mains power cord is connected properly, and the AC mains are functioning properly. The LED Power
indicator will extinguish when the AC Power switch is in the “off” position or AC mains power has been
removed from the loudspeaker.

AC power switch

Power “on” indicator LED

If the Power indicator does not illuminate when the Power switch is placed in the “on” position, verify
the AC mains line cord is properly attached to the loudspeaker and plugged into the AC outlet. Verify
the outlet is functioning properly.

If the AC mains cordset is serviceable and the AC mains outlet is operating properly, but the
loudspeaker fails to operate, the loudspeaker may require servicing. Contact QSC’s Technical
Services department.

System Power Sequencing

Proper power turn on sequence can help to prevent unexpected sounds from your system (pops, clicks,
thumps). These unintended sounds can damage drivers and cause audience members to question the
professionalism of the sound team. T urn on and off the system in the proper order to avoid unexpected
sounds.

Power On Sequence: Turn on all source devices (CD players, mixers), turn on subwoofer, then turn on
the “top-boxes” (HPR152F and HPR153F).

Power Off Sequence: Turn off the top-boxes, turn off the subwoofer, then turn off the source devices .

Input Connections

Full-range models have one female XLR line-level input marked FULL RANGE LINE IN.
Subwoofers have a second set of connectors, one for the left channel’s audio and one for the right

channel’s audio.
We recommend balanced connections be used. Balanced connections will reduce AC hum and interfer-

ence, especially with long cable runs. Unbalanced connections may be suitable for short cables. The
input impedance is 22k ohm for balanced connections or 11k ohm for unbalanced connections. The sig­nal's source impedance should be less than 600 ohms.

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