Toa BG-220, BG-235, BA-235, BA-260 Specifications

TOA Corporation BG/BA-200 Series 1/4

BG-220/235/BA-235/260
PA Amplifier

BA-235/260

BG-220/235

APPEARANCE AND
DIMENSIONAL DIAGRAM

BG-220/235

BA-235/260

DESCRIPTION

FEATURES

Designed to satisfy users' specific requirements for the BGM market, the compact TOA
BG and BA Series of mixer amplifiers are ideal for use in banquet rooms, bars and
retail outlets, delivering satisfactory power output as well as the reliable audio
performance and features that TOA is known for.

The BG-220 and BG-235 units are each equipped with 1 Mic/Line input and 2 Line
inputs and also include an MOH Out. For installation ease, the rear-mounted terminal
blocks are removable. DIP switches are provided to enable quick settings. A ZONE 2
OUT provides system expansion capability when needed.

Users' BGM market demands include affordable, mixer amplifiers optimized for simpler
applications that will not require paging and/or MOH Out features. The new BA-235
and BA-260 power amplifiers are ideal solutions, delivering high-quality audio
performance and generous power.

A wider scope of operation can be gained by combining BG and BA to achieve full 2­channel broadcasts. The compact and attractively priced BG and BA Series make it
easy to provide ideal BGM services wherever desired as well as help to reduce system
costs due to the significantly less time required for system installation and set-up.

• Affordable and compact amplifiers designed for background music and paging applications.

• Ideal for mid-sized environments including bars, retail outlets, classrooms, restaurants etc.

• 2-channel broadcasts possible for system expansion as needed through MOH/ZONE
2 output on BG Series amplifiers

• Tamper-proof bass and treble controls preserve system settings.

• Security knobs for volume control included.

• Thermal protection circuits against overheating.

• Meets UL/cUL regulations.

BG-200 Series

• Any of 3 inputs can be assigned to MOH/ZONE 2 output.

• LINE 2/3 outputs equipped with RCA pin jacks.

• Automatic Mute sensing control to set mute activation threshold and manual mute function.

•

Removable terminal blocks and rear-mounted DIP switches for fast and easy installation/setup.

BA-200 Series

• Remote master volume control possible by using an external volume control.

• RCA line input jacks.

Rear View

Front View

Side View

Unit: mm (in.)

1800

(70.87)

210 (8.27)

6-M4

265 (10.43)

249 (9.8)

40

(1.57)

165 (6.5)

14

(0.55)

58.4 (2.3)

93 (3.66)

88.4 (3.48)

Unit: mm (in.)

1800

(70.87)

210 (8.27)

6-M4

265 (10.43)

249 (9.8)

40

(1.57)

165 (6.5)

14

(0.55)

58.4 (2.3)

93 (3.66)

88.4 (3.48)

Rear View

Front View

Side View

TOA Corporation BG/BA-200 Series 2/4

SPECIFICATIONS

Model No. BG-220 BG-235
Power Source 120 V AC, 60 Hz
Rated Output 20 W 35 W
Power Consumption 60 W (rated output), 36 W (based on cULus standards) 90 W (rated output), 55 W (based on cULus standards)
Frequency Response 50 Hz – 20k Hz
Total Harmonic Distortion 0.5% or less, at 1 kHz, rated output
Input Mic.: –60 dB*/Line 1: –10 dB*

Mic/Line 1 selectable, 600Ω, electronically balanced, removable terminal block

Line 2, 3: –10 dB*, 10 kΩ, unbalanced, removable terminal block or RCA jack

Output Speaker 4 Ω, 25 V (31 Ω) and 70 V (245 Ω) balanced, removable terminal block 4 Ω, 25 V (18 Ω) and 70 V (140 Ω) balanced, removable terminal block

MOH 0 dB*, 600 Ω, balanced, removable terminal block

Line 0 dB*, 600 Ω, unbalanced, removable terminal block

Output Regulation 2 dB or less, no load to full load (1k Hz)
S/N Ratio Mic/Line 1: 60 dB or more/Line 2, 3: 80 dB or more

(Band Pass: 20 Hz – 20k Hz, Tone Controls: Centered)

Tone Control Bass: ±10 dB at 100 Hz, Treble: ±10 dB at 10k Hz
Control Mic/Line 1 gain control, Line 2 gain control, Line 3 gain control, Bass tone control, Treble tone control,

MOH out gain control, Mute control (Manual mute), Mute sense control,

Auto mute switch (Mic/Line 1), Mic /Line 1 selector switch, Mute receive switch (Line 2, 3),

MOH assign switch (Mic/Line 1, Line 2, 3), Power ON/OFF switch

Indicator Power LED, Signal level LED, Peak LED
Other Feature Automatic electronic drive limiter
Operating Temperature 0°C to 40 °C (32°F to 104 ºF)
Operating Humidity 35 % to 80 % RH (no condensation)
Finish Panel: ABS resin, black/Case: Steel plate, black, paint
Dimensions 210 (W) × 94.3 (H) × 265 (D)mm (8.27" × 3.71" × 10.43")
Weight 3.5 kg (7.72 lb) 4 kg (8.82 lb)
Accessory Volume control cover: YA-920 × 3, Removable terminal plug (2 pins) × 3, Removable terminal plug (3 pins) × 1, Removable terminal plug (4 pins) × 1,

Removable terminal plug (5 pins) × 1
Option Rack mounting brackets: MB-25B-BK, MB-25B-J
*0dB = 1V

CHARACTERISTIC DIAGRAMS

BG-220

BG-235

0110100

10

1

0.1

0.01

Power Output (W)

THD (%)

THD vs Power Output

100Hz
1kHz
10kHz

10

5

0

-5

-10

-15

-20

Frequency (Hz)

Devation (dB)

Frequency Response

10 100 1000 10000 100000

0110100

10

1

0.1

0.01

Power Output (W)

THD (%)

THD vs Power Output

10

5

0

-5

-10

-15

-20

Frequency (Hz)

Devation (dB)

Frequency Response

10 100 1000 10000 100000

ARCHITECTURAL AND
ENGINEERING SPECIFICATIONS

BG-220 / BG-235

The mixer amplifier shall control and mix up to three input signals
and deliver an audio output of 20W/35W. Frequency response
shall be 50 to 20k Hz with 0.5% or less THD at rated output. The
output regulation shall be less than 2dB, no load to full load. The
mixer amplifier shall have switch-selectable MIC/LINE input,
electronically balanced, with removable terminal block
connections and two LINE inputs, unbalanced, with removable
terminal block connections and RCA jacks. The MIC/LINE 1 input
impedance shall be 600 ohms and the LINE 2/3 input impedance
shall be 10k ohms. The mixer amplifier shall include a
MOH/ZONE 2 output with removable terminal block. The mixer
amplifier shall include 25V, 70V and 4 ohm balanced outputs.
Built-in protection circuitry shall monitor current level to minimize
potential damage from overloads, and disable output during
excessive operating temperature over 221°F (105°C). The mixer
amplifier shall incorporate a mute function to allow MIC/LINE input
to override LINE 2 and 3 input without interrupting the
MOH/ZONE 2 output. A rear-mounted MUTE SENSE control
shall allow threshold adjustment of mute activation. Terminals for
activating the mute function manually with external switch closure
shall also be included. Rear-mounted DIP switches shall allow
assignment of LINE 2 and/or LINE 3 to respond to the mute
function activation. Each input shall be assignable to the
MOH/ZONE 2 output. 2-channel broadcast shall be possible
using the MOH/ZONE 2 output. Recessed Bass and Treble
controls shall be located on the front panel. Accessory volume
control security knob shall be included to prevent the accidental
change of input volume settings.

The mixer amplifier shall be cULus-Listed and capable of
operation from a 120V AC / 60Hz line breaker. Dimensions (W ×
H × D) shall be 8.27" × 3.71" × 10.43" (210 × 94.3 × 265 mm). Net
weight shall be BG-220: 7.72 lbs. (3.5kg); BG-235: 8.82 lbs. (4kg).
Front panel finish and material shall be black ABS resin and case
finish (and material) shall be black steel plate.

The mixer amplifier shall be TOA model BG-220 / BG-235.
The optional rack-mount bracket shall be TOA model MB-25B-BK.
The optional rack-mount bracket (two units) shall be TOA model
MB-25B-J.

100Hz
1kHz
10kHz

Measurement: Line 2 input