Monitor Audio IA40-3 - 3 channel TV optical dolby amplifier with Bluetooth

  • €449,00
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The discreet IA40-3 is a highly versatile amplifier featuring digital, analogue and Bluetooth® inputs. Designed for easy installation, the bespoke fixings allow it to be positioned in multiple locations: on a wall, cabinet, stand or behind a television.


Ideal for smaller environments, the IA40-3 Installation Amplifier will perfectly power in-ceiling speakers in a kitchen, loft room or bedroom. It also works beautifully when paired with Monitor Audio smaller bookshelf speakers in a bedroom, study or sitting room.

Best of all, if there is a television in the setup, the IA40-3 can be mounted behind the screen – using the supplied bespoke bracket – to drive a Monitor Audio Passive Soundbar. (The customisable brackets can be bent to fit and have flexible break-off sections for maximum installation versatility.)

With 40 W of power over three channels at 4 ohms, or 60 W over two channels, the IA40-3 will drive speakers or passive soundbars to deliver a lively and precise sound.

If extra bass is required, an active subwoofer can be connected to the IA40-3 via the sub/line out. Whatever the audio source, this is an amplifier with all the right connections. The IA40-3 features optical and analogue inputs and the latest Bluetooth® wireless technology, powered by Qualcomm® aptXTM Audio, to allow easy and superior pairing with mobile devices. The IA40-3 has been designed to be discreetly tucked away and its unique heatsink fin allows cooling in the tightest of spaces.

Designed for modern living, the IA40-3 is Monitor Audio’s versatile solution when superior sound is required in custom install projects.


Number of Output Channels


Power (W / Channel) | 4 ohms | 1 kHz

60 W @ 1% THD+N for 2 Channel
40 W @ 1% THD+N for 3 Channel

Power (W / Channel) | 8 ohms | 1 kHz

50 W @ 1% THD+N for 2 Channel
30 W @ 1% THD+N for 3 Channel

Input Impedance

10k Unbalanced

Output Impedance (Sub/Line Out)


Input Sensitivity

~300 mV - Full Power

Maximum Input Voltage

2.3 V

Signal to Noise (SN:R)

> 84 dB Unweighted

Frequency Response (+-0.5dB) @ 1W

10 Hz – 20 kHz

Total Harmonic Distortion THD + N@1 KHz

< 0.05%

Dimensions (Excluding Mounting Brackets and Antenna (H x W x D))

31.4 x  180 x 110.5 mm (11/4x 71/16x 43/8")

Dimensions (Including Mounting Brackets (H x W x D))

32.6 x 196 x 182.5 mm (15/16x711/16x 73/16")

Mains Operating Voltage

100-240 VAC, 50/60Hz

Fuse Rating

3 A

Standby Power Consumption

< 0.5 W

Weight (Including Amp, RS232 Terminal Block, Speaker Terminal Block and Antenna)

0.484 kg



Bluetooth Range with Antenna (line of sight)

> 20m

Bluetooth Version


Bluetooth Profiles


Audio Codec

SBC, Apt-X


The EQ dip switches apply a 3 dB boost at 120 Hz, 1500 Hz, and 8 kHz.

Sold As

Single Unit