BLAZE PowerZone 252 2 Channel Class D Amplifier User Guide

BLAZE PowerZone 252 2 Channel Class D Amplifier

Product Information

The product is a power amplifier with multiple channels. It has various input and output connections, as well as DIP switches and GPIO functions for customization. The amplifier supports both Low-Z and Hi-Z modes for different channel configurations. It operates on AC mains power and has a power rating of 150W.

Carton Contents

• Power amplifier unit
• User manual
• Power cord
• Other accessories (if applicable)

Connections

• Input: CH1, CH2, CH3, CH4
• Output: CH1, CH2, CH3, CH4
• DIP: Switches for customizing amplifier settings
• GPIO: Channels 1 & 2 for GPIO functionality

Product Usage Instructions

Installation

1. Ensure the power amplifier is placed in a well-ventilated area and not exposed to rain or moisture.
2. Connect the power cord to an AC mains outlet with a protective earthing connection.
3. Make sure the amplifier is earthed for safety.
4. Follow the manufacturer’s instructions for proper installation, including keeping the amplifier away from heat sources.

DIP Switch Functions
The DIP switches on the amplifier allow you to customize its settings. The following are the functions of each switch:

Note: Channels 3 and 4 in Low-Z mode are not applicable to two-channel amplifiers.

GPIO Functions
The GPIO functionality allows you to control the amplifier using external devices. The following are the functions of each GPIO setting:

Note: Channels 3 and 4 in Hi-Z mode are not applicable to two-channel amplifiers.

Potentiometer Connection
A potentiometer with a resistance greater than 10k can be connected to the amplifier. The wiper of the potentiometer should be connected as follows:

• 504/1004: VC12 for Channel 1 & 2
• 504/1004: VC34 for Channel 3 & 4
• 252: VC1 for Channel 1
• 252: VC2 for Channel 2

Standby and Fault Indicators
The amplifier has indicators for standby and fault conditions:

• +3V3: Operational
• 0V: Fault
• Standby: Toggle standby state based on the position of DIP switch 7 (open or closed)

Ensure proper grounding and connections are made according to the provided instructions and guidelines for safe and optimal usage of the power amplifier.

Carton Contents

• Amplifier unit
• Mains power cable
• Input connector x 1 or 2
• GPIO socket connector
• Output connector x 1 or 2
• Adhesive rubber feet x 4
• Document pack
• Rack Ears (PowerZone 1004)

Connections

DIP Switch Functions

(for channels in Hi-Z mode)

| 100V Hi-Z mode

(for channels in Hi-Z mode)

6| Input ganging 1: All| Input ganging 1:1
7| GPIO standby polarity NO (Normally Open)| GPIO standby polarity NC (Normally Closed)
8| Front panel control locked.| Front panel control unlocked.

Not applicable to two-channel amplifiers.

GPIO Functions

Volume control

Connect Wiper:

• 504/1004: VC12 for Channel 1 & 2
• 504/1004: VC34 for Channel 3 & 4
• 252: VC1 for Channel 1
• 252: VC2 for Channel 2

Standby control and fault indication

Installation Notes

• Ensure that the rack or other confined installation does not restrict the airflow required for safe and reliable operation of the equipment. It is important to ensure that the 40°C maximum operating temperature for the equipment is not exceeded.
• Amplifiers will not switch on from standby mode unless an input signal is present or the standby switch is toggled.

QUICK START GUIDE

POWER AMPLIFIERS

• PowerZone 252
• PowerZone 504
• PowerZone 1004

WARNING!
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

• This symbol 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 persons.
• This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN

This equipment must be earthed.

Important Safety Instructions

1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation opening. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9. To reduce the risk of electrical shock, the power cord shall be connected to a main socket outlet with a protective earthing connection.
10. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for the replacement of the obsolete outlet.
11. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
12. Do not unplug the unit by pulling on the cord, use the plug.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as a 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.
15. The appliance coupler, or the AC Mains plug, is the AC mains disconnect device and shall remain readily accessible after installation.

FCC Compliance

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause undesired operation.

Note:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Support

A full user manual that includes information on installation, mounting accessories, and amplifier operation is available online. Go to www.blaze- audio.com or scan the QR code.

Blaze Audio, Pascal A/S, Ellekaer 6, DK-2730 Herlev, Denmark. hello@blaze- audio.com. www.blaze-audio.com.

References

• Pro audio solutions | Blaze Audio | Commercial Audio Installs

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