Used but in excellent working and cosmetic condition (see photos). Fully tested, it has some small faint stains on the top which I tried to remove using household cleaner (SimpleGeeen), but I did not try anything more "aggressive."

Removed from a corporate conference room environment where it had only occasional use. Both Euro-style input & output connectors are included. A brand new heavy-duty power cord is included, as are self-adhesive rubber feet if you wish to use this without the removable rack mounting brackets. Will also include the 1/8" (3.5mm) stereo input cable shown in the pictures that was used to test this with. Very well packed for safe shipping; will use lowest-cost method which you select.

Manufacturer Description
The Bose AmPlus 100 business music amplifier is a 100 watt amplifier that satisfies a wide variety of applications in the commercial and consumer marketplace. The AmPlus 100 amplifier is a 2-channel, multipurpose amplifier used in powering 4Ω, 8Ω, 25V or 100V loudspeakers. The AmPlus 100 business music amplifier has front end processing permitting the connection and level adjustment of two sources: left/right or source A/source B. Power hookup, remote volume hookup, line output connections, and provision for bass adjustment are provided on the rear panel.

Manufacturer Specifications
The power amplifier shall deliver the following Watts of continuous power with less than 1% distortion from 20Hz to 20kHz (direct).

Stereo: 65W per channel into 4Ω
70V/100V Bridged Mono: 100W into 49Ω/98Ω
70V/4Ω: 50W @ 70V outputs into 98Ω
65W @ Ch. 2 outputs into 4Ω
100V/4Ω: 50W @ 100V into 196Ω
65W @ Ch. 2 outputs into 4Ω

The signal-to-noise ratio shall be greater than 80dB.
The frequency response shall be the following:
4Ω outputs: 40Hz – 16kHz, ±1dB
70V/100V outputs: 60Hz – 16kHz, ±1dB

The power amplifier shall have the following controls on the rear panel: two inputs, input attenuation, remote volume control, bass adjust, input mode switch, and amplifier mode switch.

The only control on the front panel shall be the power ON/OFF switch. All input and output connectors shall be quick connect terminal blocks.

The amplifier shall accept equalization cards for the Bose Model 8, Model 25, Model 32, and Model 1B loudspeakers. It shall also accept optional plug-in cards facilitating paging and additional sources.

The power amplifier shall operate on 120V~AC, 50/60Hz or 220-240V~AC, 50/60Hz and consume 2.0 Amperes at rated output. It shall be desk/shelf mounted or rack mounted using a specific rack mount kit.

The power amplifier shall be 17" (43.2 cm) wide x 10" (25.4 cm) deep x 3.75" (9.52 cm) high. The power amplifier shall weigh 20 pounds (9.2 kg).

The amplifier enclosure shall be zinc plated or pre-coated and finished in professional grey.
The power amplifier shall be the Bose AmPlus 100 business music amplifier.

Power Output

Stereo: 65W per channel into 4Ω

50W into 8Ω

70V Bridged Mono: 100W into 49Ω

100V Bridge Mono: 100W into 98Ω

70V/4Ω: 50W @ 70V output into 98Ω

65W @ Ch. 2 output into 4Ω

100V/4Ω: 50W @ 70V output into 196Ω

65W @ Ch. 2 output into 4Ω

Input Sensitivity

315mV required to drive both channels to

full power in any mode.

Input Attenuation

0dB to off

Input/Output Configurations

1. 2-channel (stereo)

2. Mono into 4Ω load

3. Mono into 70V/100V load

4. Dual-Mono (1 source/2 zones)

5. Channel 1: 70V/100V; Channel 2: 4Ω

Input Impedance

32kΩ balanced

11kΩ unbalanced

Line Output Impedance

600Ω

Line Output Distortion

≤0.1%

Frequency Response

(active EQ bypassed)

4Ω outputs: 40Hz – 16kHz, ±1dB

70V outputs: 60Hz – 16kHz, ±1dB

THD @ Rated Power

4Ω outputs: ≤1% THD (40Hz – 16kHz)

70V outputs: ≤1% THD (60Hz – 16kHz)

Hum and Noise

Line outputs: 92dB

Power amplifier outputs: 80dB below

maximum output with 4Ω load

LED Indicator

Power: front panel

Controls

• Inputs 1 and 2

• Input attenuation

• Remote volume

• Bass adjust 1 and 2

• Input mode switch

• Amplifier mode switch

• Front panel power switch

AC Power Consumption

120V~AC, 50/60Hz, 350W maximum

220-240V~AC, 50/60Hz, 350W maximum

Operating Temperature Range

(passively cooled top and

bottom vents)

12° F to 120° F (-10° C to +50° C)

Special Features

• Remote volume control

• Turn on/off muting

• Clip detector and limiter

• Short circuit protection

• DC offset protection

• Thermal limiting

• Stable into reactive loads

• RFI protection

• International safety approvals under

UL-6500, CSA-E65, IEC-65. EMC CE

compliance

Option Card Accessories

• Equalizer (EQ) cards for these loud-

speakers: Model 8, Model 25, and

Model 32, and for the Model 1B Acousti-

mass module

• Opti-Source TM card

• Opti-voice ® page card

Terminations

Inputs and outputs are quick connect

terminal blocks

Desk mount

17"W x 10"D x 3 3

⁄ 4"H

(43.2 cm (W) x 25.4 cm (D) x 9.52 cm (H))

Rack mount – chassis supported

19"W x 10"D x 3 3⁄ 4"H

(48.3 cm (W) x 25.4 cm (D) x 9.52 cm (H))

Weight

20 lb (9.1 kg)