Introduction
Thank you for purchasing Pure Acoustics products, and welcome to the Pure Acoustics family of satisfied customers! Pure Acoustics was established to fulfill the need for high-quality speakers of exceptional design at an affordable price. After years of research and development, and by manufacturing all parts ourselves—from the voice-coil to the uniquely-designed crossover—Pure Acoustics is able to offer you speakers of superior value.
Each speaker component has been designed and engineered with first-rate materials to produce exceptional sound. Our speakers offer the best of it all—high-quality sound, hand-made solid construction, and a remarkably stylish appearance. We welcome you to witness the results. Our team's dedication to quality, reliability, and attractive design has created some of the best-value speakers you can find today.
Reading the complete manual will help you to set up your speakers properly and reward you with a fine listening experience. Pure Acoustics distribution centers in Europe, Asia, Australia, and the Americas will be happy to assist you with any questions you may have. Please look for the distributor nearest you on our website, www.pure-acoustics.com.
Product Models
This manual covers the following Pure Acoustics Commercial Amplifier models:
- AZ-2U-1120: 1 Zone Commercial Amplifier, 120W
- AZ-2U-3240: 3 Zone Commercial Amplifier, 240W
- AZ-2U-5360: 5 Zone Commercial Amplifier, 360W
Front Panel Overview
The front panel features controls for power, zone management, tone adjustment, volume, microphone input, and media playback. The layout varies slightly by model but generally includes:
- Power Switch: Turns the unit on/off.
- Zone Control: Allows independent control for 1, 3, or 5 zones depending on the model.
- Tone Control: Analog bass and treble controls for sound customization.
- Auxiliary MP3 Volume: Controls the volume for auxiliary inputs.
- Microphone Volume Controls: Individual volume adjustments for microphone inputs (e.g., MIC 1, MIC 2, MIC 3).
- 6.3mm MIC Input(s): Connect wired microphones.
- Multimedia Control Panel: For managing media playback (e.g., USB).
- USB Input Port: For connecting USB flash drives for music playback.
- Digital Display: Shows current status, time, or selected input (e.g., '12:00').
- Power and Clip Indicator: Lights indicate power status and signal clipping (SIG, CLIP indicators).
- Speaker Zone Outputs (SP1-SP5): Connect speakers to specific zones (on some models).
Indicators like 'ON', 'SIG' (Signal), and 'CLIP' are present near relevant controls.
Rear Panel Overview
The rear panel provides connections for power, audio inputs, speaker outputs, and other external devices. Specific connectors and their functions are detailed below:
- 6.3mm Microphone Input(s): Additional microphone inputs (e.g., MIC 2, MIC 3).
- Auxiliary Input(s) (AUX 1, AUX 2): Connect audio sources like smartphones, tablets, or MP3 players.
- External Amplifier Connection Option: Output for connecting to an external amplifier.
- 24V DC Backup Power Input: For connecting an external battery for emergency power.
- Heat Fan(s): For cooling the amplifier.
- Passive Speaker Connection: Terminals for connecting passive speakers (e.g., COM, 4-16Ω).
- 100V / 70V Speaker Output Option: Terminals for connecting to high-voltage speaker systems (e.g., 100V 1 Zone, 3 Zone, 5 Zone Speaker Option).
- Power Connector Port: For connecting the main AC power cable (AC 220-240V~50Hz).
- FM Antenna Connection: For connecting an FM radio antenna.
- FUSE: Fuse holder for power protection.
Technical Specifications
| Specification | Value(s) |
|---|---|
| Maximum Power Output | 120W/240W/360W |
| Output | 4-16Ω, 70-100V rated output voltage |
| Inputs (Mic 1,2,3) | 35mV/600Ω (-10dB imbalance) |
| Inputs (Aux 1,2) | 0.775V/10K (0dB) |
| Backup Power Input | 24VDC |
| Frequency Response | 70Hz-20KHz (±3dB) |
| THD | 0.1% at 1KHz, 1/3 Related power |
| Signal To Noise Ratio (MIC 1,2,3) | ≥66dB |
| Signal To Noise Ratio (Aux 1,2) | ≥70dB |
| Volume (Bass) | ±10dB at 100Hz |
| Volume (Treble) | ±10dB at 10KHz |
| Clipping | Short-circuit and overload protection |
| Power | AC-220V-240V/50Hz |
| Size | 48.2 x 31 x 8.8 cm |
Key Features
- Premium Amplification: Class AB amplification provides stable distortion-free sound distribution.
- Clip Protection: 4-Level circuit overload indicator protection.
- Zone Control: 1/3/5 Zone amplification capability with independent sound control.
- 24V DC Backup Power: Power port provides a connection to an external battery in the event of a power outage or emergency. Suitable for use with emergency and fire safety PA systems.
- Bluetooth: Wirelessly stream music to up to 3 different rooms or areas simultaneously.
- Wired MIC Inputs: Three 6.3mm wired microphone inputs with individual volume adjust.
- RCA Inputs: Two AUX ports for smartphones, tablets, MP3 players with independent volume control.
- RCA Output: Provides an additional external amplifier connection option.
- FM Radio Built-in: Digital FM tuner with auto scan provides continuous music play.
- Digital Equalizer: 5-Option digital equalizer for a complete customized sound delivery.
- Tone Control: Analog bass and treble controls offer additional sound customization to all zones.
- USB Inputs: Access external music source using a flash drive.
Limited One-Year Warranty
Pure Acoustics products have been designed and manufactured to the highest quality standards. However, in the event that something malfunctions, Pure Acoustics and your local authorized distributor warrant free of charge parts and labor (some exclusions may apply) for a period of one year. This warranty is only valid for the original owner. This warranty is limited to the repair of the product.
This warranty will not apply to units that were subject to misuse, neglect, abuse, alteration, or improper installation. This warranty will not cover damage due to fire, water, heat, lightning, or any other cause beyond the control of Pure Acoustics. Retention of your original dated receipt is required in order to obtain warranty service from your local authorized Pure Acoustics Dealer.
