Products Lineup

Data Library

Here, TOA’s Data Library equipped with a search engine offers its CAD drawings made out in pdf and dwg forms, EASE data, specification sheets, brochures, instruction and installation manuals, and a wealth of other product data for your downloading.


VP-3304 Digital Power Amplifier 4X300W


The VP-3304 is an Digital Power Amplifier used for the SX-2000, VX-2000 and VM-3000 systems. It is a 2U rack-mount unit equipped with 4 channels of class-D digital power amplifiers, which contribute to energy-saving and lightweight design. The VP-3304 also features a front-mounted LED indicator for operating status indication and stand-by mode to be set for reducing stand-by power consumption. It requires a dedicated power supply unit VX-3000DS.

Power Source 31 V DC (operating 20-34 V DC)
DC power in: M4 screw terminal, distance between barriers: 11 mm (0.43")
Amplification System Class D
Current Consumption 0.3 A (standby mode), 2 A (no audio input), 9 A (1/8 rated output, EN60065), 45 A (rated output)
at 31 V DC, channel total
Rated Output Power 300 W × 4 (at 100 V line and min. resistive and max. capacitive load)
210 W × 4 (at 70 V line and min. resistive and max. capacitive load)
150 W × 4 (at 50 V line and min. resistive and max. capacitive load)
(at AC Mains of VX-3000DS: 187 V - 253 V)
Output Voltage 100 V (70 V, 50 V: selectable by internal change)
Minimum Resistive Load 33 Ω (at 100 V line), 23 Ω (at 70 V line), 17 Ω (at 50 V line)
Maximum Capacitive Load 0.5 μF
Number of Channels 4
Input PA link: 4 channels, RJ45 connector
BGM: 4 channels, removable terminal block (5 pins)
BGM INPUT (H, C, E): -10 dB/0 dB (LINE, changeable), 22 kΩ, electronically balanced
BGM MUTE (G, +): no-voltage make contact input, open voltage: 15 V DC, short-circuit current: 2 mA
Volume adjustment: 4 channels
Output PA out (Speaker line): removable terminal block (9 pins) × 1
Frequency Response 40 Hz - 16 kHz, ±3 dB (at 100 V line, 1/3 rated output)
Distortion 1 %%% or less (at 100 V line, rated output, 1 kHz)
Signal to Noise Ratio 80 dB or more (at 100 V line, A-weighted)
Crosstalk 60 dB or more (at 100 V line, A-weighted)
Panel Indicator Power indicator × 4 (Green), Operate indicator × 4 (Green), Input signal indicator × 4 (Green), Peak signal indicator × 4 (Red)
Operating Temperature -5 ℃ to +45 ℃ (23 ゜F to 113 ゜F)
Operating Humidity 90 %RH or less (no condensation)
Finish Panel: Surface-treated steel plate, black, 30 % gloss, paint
Dimensions 482 (W) × 88.4 (H) × 390 (D) mm (18.98" × 3.48" × 15.35")
Weight 7.3 kg (16.09 lb)
Accessory Rack mounting screw (with washer) …4, Removable terminal plug (5 pins) …4, Removable terminal plug (9 pins) …1
  • Contact Us
  • A&E Specification Download
  • TOA UHF Wireless Microphone System
  • SounDoh WIKISound tips: text version
  • SounDoh VIDSound tips: video or animation version

Top of the Page

About TOA

TOA is a company established in 1934, in Kobe, Japan. We provide innovative solutions and products centering those which provide sound. What TOA values is people’s smile. With more than 30 locations, we contribute to create a safe and reliable society globally with excitement, supporting the needs of local community.