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.
Please note: An IR remote control (not supplied) is required for setup of the IA40-3 amplifier and Bluetooth device pairing. This can be an existing TV remote control, or any universal IR remote with volume +/-/mute buttons.
Number of Output Channels | 3 |
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) | 1.47k |
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 (1 1/4 x 7 1/16 x 4 3/8") |
Dimensions (Including Mounting Brackets (H x W x D)) | 32.6 x 196 x 182.5 mm (1 5/16 x 7 11/16 x 7 3/16") |
Mains Operating Voltage | 100-240 VAC, 50/60Hz |
Fuse Rating | 3 A |
Standby Power Consumption | < 0.5 W |
Weight (Inc. Amp, RS232 Terminal Block, Speaker Terminal Block and Antenna) | 0.484 kg |
Bluetooth | Yes |
Bluetooth Range with Antenna (line of sight) | > 20m |
Bluetooth Version | 4.1 |
Bluetooth Profiles | A2DP, AVRCP |
Audio Codec | SBC, Apt-X |
EQ | The EQ dip switches apply a 3 dB boost at 120 Hz, 1500 Hz and 8 kHz |
Download the Monitor Audio IA40-3 Manual
Here at Ceiling Speakers we want to make sure that you receive your order as quickly as possible. Whether you need products last minute for a project, or you're simply itching to start enjoying your purchase! As a result we hold excellent stock, and the majority of our catalogue is available for free* next working day delivery (when ordered by 12pm Mon-Fri excluding public holidays).
Our website is linked to our warehouse systems and live stock availability is displayed on every product. In stock items ordered by 12pm Monday to Friday will be dispatched on the same day, and 95% of orders will be delivered on the next working day (Northern Ireland, Highlands, Islands, & other remote locations may take a little longer). Saturday deliveries can be arranged on request (POA).
Some products may be out of stock but available to order. For these items the typical delivery time is displayed on the product page. The majority of these products are delivered within the displayed timeframe. However, if you place an order and this is not the case we will contact you immediately to inform you of the timescale. If you require the product(s) at short notice then please contact us for confirmation prior to ordering.
*The following delivery charges apply. The majority of UK Mainland orders are delivered on the next working day (when ordered by 12pm Mon-Fri excluding public holidays). DPD tracking information will be provided along with a 1-hour delivery timeslot.
UK Mainland
Orders of £69.00 and over (inc. VAT) are carriage free
For orders under £69.00 carriage is charged at £10.00 (inc. VAT)
Northern Ireland
Orders of £199.00 and over (inc. VAT) are carriage free
For orders under £199.00 carriage is charged at £20.00 (inc. VAT)
Isle of Man
Orders of £299.00 and over (inc. VAT) are carriage free
For orders under £299.00 carriage is charged at £30.00 (inc. VAT)
Channel Islands
All orders are subject to a carriage charge of £50