Portable PA System: The Yamaha STAGEPAS 400i is a 400-watt, portable PA system which consists of
a 8-channel powered mixer, two 8" passive speakers, a pair of speaker cables, and a
power cord. In addition, the STAGEPAS 400i offers iPod/iPhone USB connection, SPX
digital reverbs, an onboard feedback suppressor, and versatile EQ. Compact and light enough to carry by hand, the STAGEPAS
PA system can go almost anywhere. The two lightweight speakers and external
power mixer combine
into an simple, compact package that provides portability and great sound. With
its intuitive, simple design, STAGEPAS 400i can be set up
and ready to go in a matter of minutes. Even users with no PA operation
be able to produce high-quality sound in no time. Flexible enough to be used in a truly impressive range of environments and
applications, the STAGEPAS 400i system can be set up in a variety of PA and
monitoring configurations; great for acoustic guitar and vocal, band
performance, public speaking, or mobile DJ-ing.
Pair of Passive Speakers: The Yamaha STAGEPAS 400i includes
a pair of two-way passive speakers that are capable of producing a wide
- Two-Way Speaker Design: Each passive speaker employs a two-way
design with a horn-loaded 1" tweeter and 8" woofer. The pure titanium 1"
compression driver is mounted to a 90°x 60° non-resonant, constant
directivity horn with the goal of minimizing radiation pattern deterioration
in oblique directions as more conventional horns are prone to doing. This
can help to achieve a more ideal coverage area without irregularities. With
the new wide dispersion constant directivity horn, sound expands in a more
rectangular pattern providing 90° horizontal x 60° vertical coverage, with
wide-frequency sound projected to the edges of the coverage area. The high
power 8" woofer provides deep bass response with low distortion for great
- ABS Bass Reflex Enclosure: The speakers feature a
rugged, non-resonant ABS enclosure that is designed to dampen down
vibrations caused by high output levels, producing less distortion, and
superior sonic quality. The road-tested enclosure is equipped with
heavy-duty grilles and ergonomic, gripped handles that greatly improve
durability and portability. The speaker uses a Bass Reflex enclosure for
greater efficiency and bigger bass.
- 1/4" Phone Jacks: Each speaker features a 1/4" phone jack. Use the included speaker cables to connect the speakers to the
corresponding 1/4" phone jacks on the power mixer.
- Mounting Options: The speakers feature a 1.375" (35mm) pole
socket for use with Yamaha's speaker stand (SS238C, sold separately) for
easy positioning in a wide range of applications.
Built-in Amp w/ Intelligent DSP: The Yamaha STAGEPAS 400i's
external power mixer is equipped with a 360W RMS/400W Peak amplifier that is
optimally designed to match the system's passive two-way speakers. The STAGEPAS
400i also utilizes digital signal processing (DSP) to offer the consistently
high-quality, distortion-free sound at any volume level, whether you're giving a
business presentation or cutting loose in a club. What's more, Yamaha's
intelligent DSP incorporates the use of advanced limiter circuits to protect
vital STAGEPAS 400i components, ensuring that you get the most out of your gear
for years to come.
Versatile Mixer Inputs: The Yamaha STAGEPAS 400i is equipped with
four Mic/Line input jacks (1-4) and four Line input jacks (5/6-7/8) which can be
configured to fit a variety applications. The Line input jacks (5/6-7/8) can be
set to stereo or mono.
- Input Channels 1-2: selectable Mic/Line XLR-3-31 inputs
- Input Channels 3-4: selectable Mic/Line XLR/Phone-combo inputs
- Input Channels 5/6: selectable mono/stereo 1/4" phone or RCA Line
- Input Channels 7/8: selectable mono/stereo 1/4" phone
or minijack Line inputs
(or USB input for iPod/iPhone).
Hi-Z Switch & Phantom Power: The Hi-Z switch allows a
passive pickup instrument to be
connected hassle-free, without a direct box to input channel 4. You'll be able to connect
and acoustic-electric guitar to enjoy high-quality performance with low
distortion. Phantom power for input channels 1-2 (+30V) allows you to connect condenser microphones directly
to STAGEPAS 400i to get the best sound quality possible. It also means you won't
have to worry about DI boxes losing their charge during a performance.
Monitor & Subwoofer Out: Expand your front-of-house system or set up a
monitoring system by using the STAGEPAS 400i together with other powered
speakers such as Yamaha's DXR lineup (sold separately). Add more bottom end to
your system by connecting a powered subwoofer such as the Yamaha DXS Series
(sold separately). Simply plugging in a subwoofer will assign a high-pass filter
to the STAGEPAS 400i speakers automatically.
EQ & Level Control: The Yamaha STAGEPAS 400i is equipped with a 1-knob
Master EQ & level dial, as well as a 2-Band EQ and level dial for each channel.
- 1-Knob Master EQ & Level Adjustment: The 1-Knob Master EQ
(Speech-Music-Bass Boss) & Level Control (0-10) gives you instant control
of your mix, allowing you to match your sound to your surroundings. Simply turn
the knob to optimize the EQ for speaking engagements, musical performances, or
just to kick in more bass; getting your sound right has never been so easy.
- Channel EQ & Level Adjustment: You'll also be able to assign detailed EQ
and level settings to each channel for precise
management of your final sound. The 2-band Channel EQ (8kHz/100Hz) & Level
Control (0-10) on the STAGEPAS 400i makes setup easy and precise.
Note: A level meter, consisting of five LEDs, shows the level of output
signal from the STAGEPAS 400i's speaker outputs (L/R).
SPX Digital Reverb (optional Reverb Footswitch): One knob gives you
access to four different high-quality reverb settings (Hall, Plate, Room, Echo);
perfect for vocals and acoustic instruments. Simply turn the knob to change the
reverb type and time, and then you're ready to apply just the right amount of
high-resolution effect to each channel. For hands-free control of your reverb,
connecting an optional footswitch (sold separately) allows you to turn the
reverb on and off instantly; perfect for MC-ing events or speaking during solo
Feedback Suppressor: Avoid the uncomfortable feedback that plagues so
many sound reinforcement novices and professionals alike. Usually found only on
high-end gear, this intelligent function removes feedback automatically with the
push of a button, giving you a clear, professional sound.
iPod/iPhone Connectivity: Connect your iPod/iPhone using a USB cable
to play music and charge the iPod/iPhone. Use the "LEVEL" control of channels
7/8 to adjust the volume, since the music signals are mixed to those channels.
This connector supplies 5V power to the connected USB device. This connector
does not support digital audio playback from USB devices other than the
iPod/iPhone. For playback of such devices, use appropriate stereo minijack or
Input Terminals || Connector ||
Input Impedance ||
Source Impedance ||
Input Level |
|Sensitivity ||Nominal ||Max Before
Channel Input 1-2 ||XLR-3-31 ||Mic ||3kohm ||150 ohm mics ||-56 dBu ||-35 dBu ||-10 dBu |
|Line ||-30 dBu ||-9 dBu ||+16 dBu |
Channel Input 3-4 ||XLR Combo ||XLR ||Mic ||3kohm ||150 ohm mics ||-56 dBu ||-35 dBu ||-10 dBu |
|Line ||-30 dBu ||-9 dBu ||+16 dBu |
|Phone ||Mic ||10kohm (Hi-Z 1 MΩ) ||150 ohm lines (Hi-Z 10
kΩ) ||-50 dBu ||-29 dBu ||-4 dBu |
|Line ||-24 dBu ||-3 dBu ||+22 dBu |
5/6 ||Phone, RCA ||Line ||10kohm ||150 ohm lines ||-24 dBu ||-3 dBu ||+22 dBu |
7/8 ||Phone, Stereo Mini ||Line ||10kohm ||150 ohm lines ||-24 dBu ||-3 dBu ||+22 dBu |
Output Terminals ||
Output Impedance ||
Load Impedance ||
Output Level |
|Nominal ||Max Before
Clip ||Type at THD+N
10% ||Dynamic |
|Speakers Out (L, R) ||Phone ||<0.1Ω ||4Ω
speakers ||N/A ||N/A ||180W ||200W |
|Monitor Out (L, R) ||Phone ||600Ω ||10kΩ
lines ||+4 dBu ||+20 dBu ||N/A ||N/A |
|Subwoofer Out ||Phone ||150Ω ||10kΩ
lines ||-3 dBu ||+17 dBu ||N/A ||N/A |
- PA Speakers: 11.375" (w) x 18.5625" (h) x 10.875" (d); 16.5625
- External Power Mixer: 12.125" (w) x 7.1875" (h) x 4.5625" (d);