Roland BA-55 Battery-Powered Portable PA System

Roland BA-55

 is a versatile, battery-powered portable amplifier with some useful features. The BA-55 provides the freedom to perform or speak untethered for you - no gear required. It comes bundled with a matching wireless microphone you can use for for some occasions such as public speakering, singing and many other events. With lightweight design, you can use the BA-55 as a wireless PA system in a variety of indoor or outdoor settings. ( i.e. school classrooms, business meetings, restaurants, weddings, intimate music venues, and more)

An internal accelerometer sensor is included in the BA-55 that switches operations between stereo output (when positioned horizontally) and mono output (when positioned vertically) of its own accord. When you've a speaking engagement and need maximum power, as well as projection, use the vertical mono mode. For wide musical spread, turn horizontal. It's a piece of cake!

The BA-55 has 3 channels, 2-band EQ, as well as many inputs and outputs that can accommodate whatever comes its way. There's also an easy-to-use Echo/Reverb effect onboard, making you sound awesome. A single knob tweaks the effect type and amount - twist the dial from Off to 12 o'clock and you get a natural plate-reverb effect that adds an organic ambience to your vocal and/or instruments. From 12 to maximum, the BA-55 delivers a tape echo effect. Moreover, the effects can also be switched on and off from the DR-WM55 wireless microphone.

The BA-55 PA gives you great flexibility and sound, and at under 20 pounds, you'll be able to toss it in the car on the way to wherever you need to sound great.

Item Includes

• Roland BA-55 Battery-Powered Portable Amplifier
• 1 Wireless Microphone (DR-WM55)
• Power Cord
• AC Adaptor
• Owner's Manual

• Portable design with high-quality sound for audiences up to 80 people
• SPL (sound pressure level) rated at a powerful 108 dB
• One 2.4 GHz wireless microphone included (DR-WM55); a second DR-WM55 can be purchased separately for simultaneous use
• Operates on 8 AA batteries or AC power (AC adaptor included)
• Onboard accelerometer sensor switches operation to stereo mode when positioned horizontally
• Two 6.5" (16 cm) high-performance speakers
• Three-channel built-in mixer with two-band EQ
• Echo/Reverb effect
• Built-in Anti-Feedback function
• Line Output for recording or expanding the system
• Integrated storage compartment for storing wireless microphones and accessories
• Auto Power Off function
• Compatible with Roland ST-A95 speaker stand

Rated Power Output	20 W (10 W + 10 W) SPL 108 dB
Nominal Input Level (1 kHz)
MIC (XLR type)	-50 dBu
AUDIO/INST (RCA phono type)	-10 dBu
AUDIO/INST (Stereo miniature phone type, 1/4-inch phone type)	-20 dBu
Nominal Output Level (1 kHz)
LINE OUT	-10 dBu
Speakers	16 cm (6.5 inches) x 2
Wireless Reception Method	Roland Original (for DR-WM55 only)
Control	POWER Switch, CHIME Button, CHIME VOLUME Knob, ECHO Knob, AUTO POWER OFF Switch
Channels Controls	Wireless 1, Wireless 2: VOLUME Knob AUDIO/INST: VOLUME Knob
Master Controls	Equalizer: HIGH Knob, LOW Knob
Indicator
PENAL	WIRELESS 1, WIRELESS 2, ANTI-FEEDBACK, STEREO, POWER
FRONT	WIRELESS 1, WIRELESS 2, POWER
Connectors
MIC	Input jacks (XLR type, 1/4-inch TRS phone type)
LINE	AUDIO Input jacks (Stereo miniature phone type, RCA phono type) INST Input jack L/MONO (1/4-inch phone type) INST Input jack R (1/4-inch phone type)
OUTPUT	LINE OUT jacks (RCA phono type)
DC IN	DC IN jack
Power Supply
DC 12V	Alkaline battery (AA, LR6) x 8 Rechargeable Ni-MH battery (AA, HR6) x 8 AC Adaptor
Current Draw	430 mA
Expected battery life under continuous use	Alkaline battery (AA, LR6): about 6 hours Rechargeable Ni-MH battery (AA, HR6): about 6 hours * These figures will vary depending on the actual conditions of use.
Size and Weight
Width	355 mm; 14 inches
Depth	265 mm; 10-7/16 inches
Height	481 mm; 18-15/16 inches
Weight	9 kg; 19 lbs. 14 oz.

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