PDM3.3KQ / i series ( Digital Audio Power Amplifier)

SAE Audio PDM Series features a high-efficiency power system with Class-D digital amplification technology, achieving 98% ultra-high energy conversion efficiency and a 300% increase in power density. The SMPS regulated power supply provides 14,000W dynamic power reserve and supports global voltage auto-adaptation (100-240V). With active PFC (Power Factor Correction), it delivers THD+N <0.025%, SNR >118dB, and a dynamic range >113dB. Under a 2.7Ω load, each channel outputs 3250W continuously, effortlessly driving large line array speakers. Its millisecond-level transient response ensures precise reproduction of dynamic sound effects and delicate vocals.
PDM3.3KQi is equipped with a dual-core DSP processor for real-time IIR+FIR hybrid filter algorithm processing. It precisely calibrates linear phase curves, optimizes impulse response, and restores a “zero coloration” transparent sound field. Supporting 96kHz/40bit high-resolution processing, it offers multi-scenario EQ presets for theaters, live performances, and fixed installations. The unit includes 4×4 balanced XLR inputs/outputs and dual AES/EBU digital channels, with Ethernet remote monitoring (RJ45). Free sound field configuration solutions and a DSP preset library are provided (exclusive for PDM3.3KQi users).

Features

  • High efficiency Class D power modules.
  • Universal mains Regulated SMPS.
  • XLR signal input and link connectors.
  • SpeakON NL4 and 8 pins CA-COM output connectors.
  • Input sensitivity selector on the back panel.
  • Clip limiter switch on the back panel(PDM3.3KQ).
  • Channel independent POWER ON and SIGNAL presence (red if in protect mode), OUTput current and CLIP warning indicators on the front panel.
  • Build-in DSP (PDM3.3KQi).

Applications

  • Professional fixed installations, large-scale theater sound reinforcement, high-dynamic live performances, compatible with line array/point source systems.

Specifications

Model PDM3.3KQ PDM3.3KQi
Output power (AC 220v/50Hz. +/-10%. All channels driven output power, THD=1%)
8Ω Stereo 1350W x4 1550W x4
4Ω Stereo 2500W x4 2750W x4*
2.7Ω Stereo 3250W x4* 3300W x4*
2Ω Stereo 2900W x4* 2900W x4*
Other specifications
Frequency Response 20Hz – 20kHz (+0.18/-0dB) 20Hz – 20kHz (+0.2/-0.2dB)
THD+N < 0.025% < 0.05%
S/N Rate(A weighting) ＞ 118dB ＞ 105dB
Dynamic Range ＞ 113dB ＞ 105dB
FFT ＜-85dBV ＜-75dBV
Input Sensitivity 1.4V / 32dB / 26dB 28dB
Input Impedance (bal/unbal) 20kΩ / 10kΩ 40kΩ / 20kΩ
Voltage Gain 38dB 28dB
Output circuitry Class D Class D
Cooling Air flow from front to rear Air flow from front to rear
Voltage range AC 100V – 240V AC 100V – 240V
Dimension / Weight(The above packing dimensions, net weight, and gross weight are for reference only. The accurate values are subject to the identification on the batch of products.)
Product Dimensions (mm) 483 x 456.5 x 89 483 x 456.5 x 89
Packing Dimensions (mm) 640 x 565 x 170 640 x 565 x 170

Remark：
1、*Power tested under the condition of 40ms burst, 1KHz sine wave and 1% THD.
2、SAE reserves the right to make any changes to the product specifications without prior notice. Final specifications to be found in the user manual.