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ContinuePower Amplifiers — High-Power PA Systems in Tbilisi
Power Amplifiers (PA Power Amps / Commercial Power Amplifiers) are professional audio amplifiers designed for large facilities and provide high power, reliable operation, and stable sound quality, ideal for shopping malls, airports, stadiums, hospitals, factories, and any type of large commercial facility in Tbilisi and throughout Georgia. These amplifiers provide high power (350W-2000W, 40-200+ speakers), clean sound quality (THD <0.1%, low distortion), reliable construction (24/7 operation, commercial-grade components, 10-20 year lifespan), protection systems (short circuit, overload, overheat, DC protection), rack mount design (19" rack, 2U-3U size), and professional functions (balanced XLR inputs, bridge mode, parallel mode), making them ideal for shopping malls (50-150+ speakers, background music, voice advertising), airports and train stations (voice announcements, evacuation, emergency situations), stadiums (voice announcements, commentary, music), hospitals (multi-zone systems, voice announcements, emergency situations), factories (voice announcements, shift signals, safety instructions), and large hotels (multi-zone systems, lobby/restaurant/bar/conference halls). LAGI offers a complete range of power amplifiers: 350W-500W models (medium facilities, 40-60 speakers), 650W-1000W models (large facilities, 60-120 speakers), 1200W-2000W models (very large facilities, 120-200+ speakers), Class AB models (traditional, better sound quality), Class D models (digital, energy efficient, compact). All amplifiers are compatible with 100V/70V PA systems.
Main Types of Power Amplifiers
- 350W-500W models — medium power, 40-60 speakers (10W each), ideal for medium shopping malls, large schools, hospitals, conference centers, 2U rack size.
- 650W-1000W models — high power, 60-120 speakers, ideal for large shopping malls, airports, train stations, large hospitals, 2U-3U rack size.
- 1200W-2000W models — very high power, 120-200+ speakers, ideal for very large shopping malls, international airports, stadiums, large factories, 3U rack size.
- Class AB models — traditional analog technology, THD 0.01-0.05%, better sound quality, 50-70% energy efficiency, larger size and weight, ideal where sound quality critical.
- Class D models — digital PWM technology, THD <0.1%, 85-95% energy efficiency, compact size (50% smaller), minimal heat, ideal for 24/7 operation, energy efficiency critical.
- Bridge/Parallel models — bridge mode (2 channels → 1 channel, doubled power), parallel mode (2 channels → 2 channels, doubled speaker quantity), ideal for flexible configurations.
Frequently Asked Questions
Power amplifier — only amplifier (no mixer), 1-2 inputs (line level, balanced XLR), no volume control on inputs, no priority function, high power (350W-2000W), 40-200+ speakers, requires separate pre-amplifier or mixer for microphones and volume control, ideal for large facilities (shopping malls, airports, stadiums), professional systems, rack mount design (19" rack). Mixer amplifier — integrated all-in-one (mixer + amplifier), 4-12 inputs (microphones, line inputs), volume/bass/treble control on each input, priority function, medium power (60W-650W), 6-80 speakers, doesn't require separate mixer, ideal for small-medium facilities (stores, schools, restaurants), all-in-one solution. Recommendation: power amplifier — large facilities (>80 speakers), professional systems, separate mixer. Mixer — small-medium facilities (<80 speakers), all-in-one solution.
Bridge mode and Parallel mode are special configurations allowing you to change amplifier operation mode. Bridge mode (bridged mono) — combines 2 channels into one powerful channel, doubled power (example: 2× 500W → 1× 1000W), used when very high power needed for one zone, ideal for large spaces (100-200 speakers in one zone), connection: + channel 1, - channel 2. Parallel mode — combines 2 channels in parallel, same power but doubled speaker quantity (example: 2× 500W → 2× 500W but each channel can power 2x more speakers), used when more speakers needed than one channel can handle, ideal for multi-zone systems (2 zones with same power), connection: both channels in parallel. When to use: 1) Bridge mode — when very high power needed for one zone (>100 speakers), large spaces, one zone. 2) Parallel mode — when more speakers needed than one channel can handle, multi-zone systems, 2 zones with same power. 3) Normal mode (stereo) — when 2 independent zones with different power needed, multi-zone systems. Recommendation: most common mode is Normal mode (stereo), Bridge mode used rarely (for very large spaces).
Connecting a power amplifier requires a pre-amplifier or mixer. Steps: 1) Pre-amplifier/Mixer connection — connect pre-amplifier or mixer output (line output, balanced XLR or RCA) to power amplifier input (input, balanced XLR), use balanced XLR cable (better sound quality, less noise). 2) speaker connection — connect speaker cable (2-core, 2.5mm² or 4mm² for high power) from amplifier 100V/70V outputs to speakers (parallel connection, all speakers in parallel). 3) speaker configuration — on each 100V speaker select power (tap selector: 3W/6W/10W/20W), ensure total power doesn't exceed amplifier power on each channel. 4) Gain adjustment — adjust gain (input sensitivity) on each channel (typically 0dB to +20dB), start from 0dB and increase if needed. 5) testing — turn on system, verify all speakers work, ensure no distortion, check protection LEDs (shouldn't be lit). 6) Rack mount — install amplifier in 19" rack (2U-3U space), leave 1U space above and below for ventilation. Recommendation: always use balanced XLR cables from pre-amplifier to amplifier (better sound quality, less noise).