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Yamaha Stagepas400i Portable PA System

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AC Audio Online recommend the Yamaha Stagepas400i PA System!
Product Code: YASTAGEPAS400I
Manufacturer: Yamaha

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Yamaha Stagepas400i portable "ALL IN ONE" PA system.

The world's your stage with the Yamaha Stagepas 400i. This all in one PA system is ideal for acoustic acts, public speaking, ensemble performances and mobile DJ's. With it's fast and easy set up it can be ready to go in minutes and offers two lightweight speakers and a detachable mixer.

Key Features

  • 400W (200W + 200W) power output
  • Newly designed high quality speakers (LF:8" woofer/ HF:1" voice coil compression driver)
  • Detachable 8-channel mixer (4 mono mic/line + 4 mono / 2 stereo line)
  • iPod/ iPhone USB connection
  • One-knob master EQTM with virtual bass boost
  • High resolution SPX digital reverbs (4 types, parameter control)
  • Onboard feedback suppressor
  • Great-sounding 2-band channel EQ
  • Switchable stereo/ mono inputs
  • Hi-Z (high impedance) inputs
  • Phantom power
  • Monitor and Subwoofer outputs
  • Optional reverb footswitch


Yamaha Stagepas400i


System Type Powered mixer with 2 passive speakers
Maximum SPL (*Maximum SPL) 125dB SPL / speaker
Frequency Range (-10 dB) 55Hz - 20kHz
Power Consumption 30W (Idle), 70W (1/8 Power)
Power Requirements 100V - 240V 50Hz/60Hz
Dimentions (W x H x D) Speaker 289x472x275mm, Mixer 308x180x116mm
Net Weight 17.8kg / 39.2lbs (2 x Speaker 7.5kg + Mixer 2.8kg)

Powered Mixer

Mixer Mixing channels 8
Analog inputs 4 mono mic/line + 4 mono / 2 stereo line
Digital inputs USB Audio IN: iPod/iPhone exclusive *
Channel EQ 2-band (HIGH Shelving: 8kHz, LOW Shelving: 100Hz)
Channel functions Hi-Z switch: CH4, ST/MONO switch: CH5/6-7/8
Digital effects SPX digital reverb (4 program, parameter control)
Output processing Feedback suppressor, 1-Knob Master EQ™
Phantom power +30V (CH1, 2)
Control and others Reverb foot switch
Built-in Amplifiers Power Rating (Dynamic) 400W (200W + 200W)
Power Rating (Continuous) 360W (180W + 180W)

* Supported iPod/iPhone models.
iPod classic/ iPod touch (1st generation or later)/ iPod nano (2nd generation or later)/ iPhone (1st generation or later)


Type Two-way bass-relfex speakers
Transducers LF: 8" (20cm) cone, HF: 1" (2.54cm) voice coil compression driver
Coverage Angle (Horizontal x Vertical) 90° x 60°
Floor Monitor Angle 50°
Handle 1 x Top
Pole socket 34.8-35.2mm pole socket with StageLok™


Included Accessories Cover panel, Power cord (2m), 2xSpeaker cables (6m), 12xNon-skid pads
Optional Accessories Yamaha BMS10A (mic stand adaptor) for mixer mount, FC5 (foot switch) for reverb ON/OFF

Input Characteristics

Input Terminals MIC/LINE Input
Input Level Connector
Sensitivity Nominal Max. before
CH IN 1-2 XLR MIC 3 kΩ 150 Ω Mics -56 dBu
-35 dBu
-10 dBu
LINE -30 dBu -9 dBu +16 dBu
CH IN 3-4 XLR MIC 3 kΩ 150 Ω Mics -56 dBu
-35 dBu
-10 dBu
XLR Combo
LINE -30 dBu -9 dBu +16 dBu
Phone MIC 10 kΩ
(Hi-Z 1 MΩ)
150 Ω Lines
(Hi-Z 10 kΩ)
-50 dBu
-29 dBu
-4 dBu
LINE -24 dBu -3 dBu +22 dBu
CH IN 5/6 Phone - 10 kΩ 150 Ω Lines -24 dBu
-3 dBu
+22 dBu
Pin - 10 kΩ 150 Ω Lines -24 dBu -3 dBu +22 dBu
CH IN 7/8 Phone - 10 kΩ 150 Ω Lines -24 dBu
-3 dBu
+22 dBu
Mini - 10 kΩ 150 Ω Lines -24 dBu -3 dBu +22 dBu
Stereo Mini

Output Characteristics

Output Terminals Output
Output Level Connector
Nominal Max. before
Typ at
THD+N 10%
SPEAKERS OUT [L,R] <0.1 Ω 4Ω Speakers - -
180 W
200 W
MONITOR OUT [L,R] 600 Ω 10 kΩ Lines +4 dBu +20 dBu - -
SUBWOOFER OUT 150 Ω 10 kΩ Lines -3 dBu +17 dBu - -

  • UK Based Company
  • Part of A.C. Entertainment Technologies - has its trading origins over 45 years ago
  • UK Stock Holding
  • UK Warranty
  • Free Delivery Over £150
  • Great Prices
  • Over 20 Years' Experience
  • Specialist Advice
  • Fast Delivery
  • Finance Options Available

With years of experience supplying Businesses, Government Organisations, Charities, Schools, Colleges and Universities, we invite you to take advantage of our knowledge to help you make an informed choice, ensuring you are purchasing the best music products for your needs. With specialists in PA Systems, Pro Audio & Live Sound equipment on hand to answer calls and emails, you're in the best possible hands.

Contact us now to discuss your requirements or to request a quotation. Additional discounts may apply for educational establishments or size and value of order.

Purchase orders can be sent directly to or apply for your cash or credit account here. Terms and conditions will apply.

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