Audio Database

PAM-3
Commentary

A power speaker system with many functions.

The amplifier section is equipped with a 25W + 25W power amplifier specifically designed for PAM-3.

Established by Bose's psychoacoustic research In order to realize an ideal reproduction frequency curve for obtaining good sound, a unique active equalizer circuit is incorporated. This circuit controls the impedance and damping characteristics of the speaker depending on the magnitude and frequency of the input signal.

This circuit automatically controls the frequency response so that the natural frequency balance can be heard, enabling natural and dynamic playback even at low sound volume.

Equipped with Route 3 line input jacks.
There is also one line output terminal that can output the source during playback.

It comes with a wireless remote control that allows you to turn the power on and off, switch the input source and adjust the volume at hand.
The remote control uses the RF method for commands, and unlike the infrared method, you don't need to point the remote control at the speaker body every time you operate.

The speaker unit is equipped with HP 101 which is a 11.5 cm cone type full range unit.
This unit is designed and equipped with a special magnetic circuit that suppresses the rise of the impedance curve in the high-frequency range in order to achieve smoother high-frequency characteristics. In addition, a high-polymer material is used for the center cap to eliminate partial resonance in the high-frequency range.
In addition, the new shape of the edge that enables rich bass reproduction, and the newly designed cone paper that is partially changed in thickness and density by computer simulation are used to achieve both reproducibility of details and expressive power with a sense of scale.
In addition, it is a low-flux leakage type that combines a canceling magnet method and a high-efficiency shield method. This reduces the leakage of magnetic energy as much as possible while improving the magnetic efficiency of the unit itself, and reduces the influence on cathode ray tubes, etc.

The cabinet uses a bass reflex system.
The VASREV port uses Aerodynaport, which was developed based on Bose's unique EDS theory, and eliminates port noise by suppressing turbulence phenomena generated in the port.
In addition, the Aerodinport has a side port structure with an opening on the side of the cabinet, making the most of the baffle effect of the wall surface.

The power supply section has an independent structure to provide sufficient capacity to improve sound quality.

The setting stand was an option sold separately.

Model Rating
<Body>
Method Built-in Amplifier / 1-Way / 1-Speaker / Bass Reflex System / Setting-Free Type / Anti-magnetic Design
Units Used For all bands : 11.5 cm cone type
Rated output 25W/25W
Input impedance 10k Ω
Signal input RCA-pinjack Route 3
Signal output RCA pin jack 1 system
Input level CD : 1 v ~ 6 v
Tape : 100 mv ~ 600 mv
Aux : 330 mv ~ 1.98 v
Low flux leakage Canceling magnet system
Color Body : Dark Gray
Grill : Black
Power supply voltage 14.4 VDC (Dedicated Adapter Used)
Power consumption 96W (14.4 V rated voltage, 1 kHz input, LR channel 20W output)
External dimensions Right ch : Width 241x Height 136x Depth 153.5 mm
Left ch : width 241x height 136x depth 150 mm
Weight Right ch : 2.7 kg
Left ch : 2.1 kg
<remote controller>
Feature Power ON/OFF, volume control, input switching
Transmission method Radio frequency (RF) system
BATTERY 3 AA batteries (4.5 VDC)
External dimensions 64 mm wide x 25 mm high x 156 mm deep
Weight 0.11 kg (excluding battery)
AC Adapter
DC Output 2 Systems (14.4 v)
External dimensions Width 102x Height 69.5x Depth 190 mm
Weight 1.7kg
<Others>
Sold Separately Pan Stand GMA-3 (Pair, ¥ 12,000)
Mini Tripod Stand TS-1 (Pair, ¥ 12,000)