Digital PA Amplifiers (Class-D)

There are no products to list in this category.

Continue

Digital Amplifiers — Class D PA Systems in Tbilisi

Digital Amplifiers (Class D Amplifiers / Switching Amplifiers) are modern audio amplifiers that use digital PWM (Pulse Width Modulation) technology and provide high energy efficiency, compact design, and clean sound quality, ideal for shopping malls, hotels, offices, restaurants, and any type of commercial PA system in Tbilisi and throughout Georgia. These amplifiers provide high energy efficiency (85-95% efficiency vs 50-70% for analog Class AB amplifiers, 30-50% less electricity), minimal heat (cool operation, doesn't require large heatsink, more compact), compact design (50-70% smaller size and weight than analog amplifiers), clean sound quality (THD <0.1%, digital signal processing, DSP functions), long lifespan (less heat = less component aging, 10-15 year lifespan), and smart functions (DSP, EQ, limiter, delay, zone control, network control), making them ideal for shopping malls (energy efficiency, 24/7 operation), hotels (compact, smart zone control), offices (cool operation, quiet), restaurants (DSP, EQ, sound quality), schools and hospitals (reliability, long lifespan). LAGI offers a complete range of digital amplifiers: 120W-240W models (small facilities, 10-30 speakers), 350W-500W models (medium facilities, 30-60 speakers), 650W-1000W models (large facilities, 60-120 speakers), DSP amplifiers (built-in EQ, limiter, delay, feedback suppression), network amplifiers (Dante, AES67, IP control), multi-zone amplifiers (2-8 independent zones). All amplifiers are compatible with 100V/70V PA systems.

Main Types of Digital Amplifiers

  • 120W-240W models — low power, 10-30 speakers (10W-20W each), ideal for small stores, cafes, offices, restaurants, compact 1U rack size.
  • 350W-500W models — medium power, 30-60 speakers, ideal for medium stores, hotels, schools, conference halls, 1U-2U rack size.
  • 650W-1000W models — high power, 60-120 speakers, ideal for shopping malls, large hotels, hospitals, airports, 2U rack size.
  • DSP amplifiers — built-in DSP processor (8-band EQ, parametric EQ, compressor, limiter, delay, feedback suppression), ideal for challenging acoustics, multi-zone systems, professional installations.
  • Network amplifiers — Dante/AES67 audio-over-IP, IP control (web interface, RS-232, RS-485), real-time monitoring, ideal for large facilities, centralized control, system integration.
  • Multi-zone amplifiers — 2-8 independent zones (separate volume, EQ, source), ideal for hotels, shopping malls, restaurants where different sound needed in different zones.

Frequently Asked Questions

What's the difference between digital (Class D) and analog (Class AB) amplifiers?

Digital Class D amplifiers — use PWM (Pulse Width Modulation) technology, 85-95% energy efficiency (30-50% less electricity), minimal heat (cool operation, doesn't require large heatsink), compact size (50-70% smaller), light weight (50-60% lighter), THD <0.1%, ideal for 24/7 operation, commercial facilities, energy efficiency critical, modern technology. Analog Class AB amplifiers — use analog transistors, 50-70% energy efficiency, strong heat (requires large heatsink and fans), large size and weight, THD 0.01-0.05% (slightly better), ideal for Hi-Fi systems, studios where sound quality critical, traditional technology. Recommendation: digital — commercial PA systems, energy efficiency, 24/7 operation. Analog — Hi-Fi, studios, critical listening.

How do I choose digital amplifier power for my facility?

Choosing digital amplifier power depends on speaker quantity and power. Formula: amplifier power = (speaker quantity × each speaker power) × 1.3 (30% reserve). Examples: 1) small store — 15 speakers × 10W = 150W, amplifier: 150W × 1.3 = 195W → choose 240W model. 2) medium hotel — 40 speakers × 10W = 400W, amplifier: 400W × 1.3 = 520W → choose 650W model. 3) shopping mall — 80 speakers × 10W = 800W, amplifier: 800W × 1.3 = 1040W → choose 1000W model or 2× 500W (redundancy). 4) restaurant (high volume) — 20 speakers × 20W = 400W, amplifier: 400W × 1.3 = 520W → choose 650W model. Recommendation: always add 30% reserve (headroom), don't use amplifier at 100% power (reduces lifespan). For large facilities better to have 2 amplifiers for redundancy.

What is DSP and why is it important in digital amplifiers?

DSP (Digital Signal Processing) is digital signal processing technology that allows you to control all aspects of sound. DSP functions: 1) EQ (Equalizer) — 8-31 band graphic EQ or parametric EQ, allows adjusting frequencies (bass, mid, treble), ideal for acoustic correction, sound quality improvement. 2) Compressor/Limiter — reduces dynamic range, protects speakers from overload, ensures even sound level. 3) Delay — delays sound (0-500ms), ideal for large spaces (synchronization between speaker zones). 4) Feedback suppression — automatically detects and eliminates feedback (sound squeal), ideal for working with microphones. 5) Zone control — control each zone (volume, EQ, source), ideal for multi-zone systems. Recommendation: DSP amplifiers ideal for challenging acoustics, multi-zone systems, professional installations. For economical facilities (small stores) can use regular digital amplifier.