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AP Series

AP20d

Personal Amplifier
AP20d

AP20d

AP20d

AP20d

Maximum output 20W+20W
Compact power amplifier with digital amplifier

Features

Equipped with a digital amplifier with a maximum output of 20W+20W
Compact power amplifier with a width of 108 mm

This compact power amplifier is equipped with a 20W+20W (4Ω) digital amplifier. The circuit design uses carefully selected acoustic parts to achieve high sound quality, and can be easily connected to passive speakers such as the P802-S and P804-S to create a high-quality sound reproduction environment.

Simple design with focused functions
Easy connection to build a high-quality audio environment

Simply input various music sources such as a PC or media player, and connect passive speakers to the speaker terminals. A stereo mini cable (0.8m)/stereo RCA cable (1.5m) and two speaker cables (1.5m) are included for connection.

Equipped with two input terminals that can be selected according to the scene

Two input terminals are provided: RCA terminals on the rear panel and stereo mini terminals on the front panel. You can select the input terminal of your choice according to the installation location and playback equipment.

Stereo mini-jacks have priority for input signals. Stereo mini-jack and RCA cannot be input simultaneously.

Equipped with a pre-output terminal
System expansion is possible by connecting an active subwoofer, etc.

The PRE OUT terminal is equipped with a line-level output of the signal after the volume has been adjusted by the AP20d’s volume control. For example, when an active subwoofer is connected, the volume of the subwoofer is simultaneously adjusted in conjunction with the volume of the main speakers connected to the AP20d’s speaker outputs by operating the AP20d’s volume control, improving usability.

Equipped with an auto-standby function that complies with the European Eco-Design Directive for environmentally deployable designs

Equipped with an auto-standby function that automatically reduces power consumption. This function can be turned ON/OFF and the standby time can be set to either 5 minutes or 30 minutes using the dipswitch on the bottom of the unit, depending on the usage environment and application. This function avoids switching to standby mode at an unintended timing, such as when the output level on the playback device is turned down.

Specifications

Main Specifications

Maximum output

20W + 20W (4 ohm load), 12W + 12W (8 ohm load)

Applicable load impedance
4Ω to 8Ω
frequency response

20Hz to 40kHz

Total Harmonic Distortion

0.01% (output 3W, load 8Ω, 1kHz)

S/N ratio

100 dB or more

input terminal

Stereo mini-jack (1 channel),RCA (1 channel) / Input sensitivity: 1V

Stereo mini-jack has priority for input. Simultaneous input of both inputs is not possible.

Output terminal (PRE OUT)

RCA (1 system) *Signal is output after the volume has elapsed.

power (button on TV, etc.)

DC15V (dedicated AC adapter included)

Power consumption

60W (maximum), less than 1W (standby)

External dimensions

108mm(W)×42mm(H)×138mm(D)* including protrusions

mass

520g

accessory

AC adapter x 1, speaker cable (1.5 m) x 2, stereo mini cable (0.8 m) x 1, stereo RCA cable (1.5 m) x 1

Attention

*Do not use an AC adapter other than the one supplied with the unit.

*Connect one speaker or speaker system with an impedance of 4 to 8 ohms directly to one output of this unit.

*The device that can be connected to the output of this unit is a passive speaker unit or speaker system without an amplifier. Do not connect the inputs or outputs of other devices (amplifiers, etc.).

Turn the power ON/OFF using the power switch that doubles as the volume volume control on the main unit. Turning the power ON/OFF with an external switch, etc., may damage the product or connected speakers.

This product is intended for private use by individuals. We do not guarantee the operation and performance of this product for business use or equipment use, nor do we apply our product warranty policy.

*This product complies with the European RoHS Directive.

Support

Product Materials

Various product documents are available for download.
Acrobat Reader is required to view PDF files.

The user manuals, product specifications, and product images may be used free of charge for both commercial and non-commercial purposes, but the copyright belongs to our company.
(No permission application or credit notation such as product names is required for their use.)
Selling, leasing, renting, or redistributing the product is prohibited. (No permission application or credit notation of the product name, etc. is required for use of the image.

FAQ

Q
What happens if I connect a speaker outside the compatible speaker impedance range?
A

Please do not do this as it may cause the AP20d to malfunction.

In particular, never use the AP20d with a speaker unit below the compatible speaker impedance value (4 ohms or less), as the AP20d may generate heat or catch fire in the worst case scenario.

If a speaker unit with a compatible speaker impedance value or higher (8 ohms or higher) is connected, the volume may be low or the sound quality may be degraded.

Please use a speaker unit with a compatible impedance.

Q
Can I connect a selector to the end of the speaker output terminals to switch between multiple speakers?
A
Do not connect anything other than passive speakers of appropriate impedance to the speaker output terminals!
Connecting speaker switching switches, etc. may cause malfunction.

The black (-) side of the speaker output terminals is not a common left/right circuit.
The black (-) side of the speaker output terminal does not share the same chassis ground.

Connecting the speaker terminals to a selector that switches only the red (+) side, or to a device that shares the same chassis ground with the black (-) side, may cause a malfunction.

When switching connections, please replace the cables.

Also, please do not connect (wire) one speaker to multiple amplifiers.