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Radique Audio

RA-Mini Compact Class D Amplifier – Tiny but Mighty

$99.00

Tiny but mighty: a compact Class D stereo amplifier for passive speakers, in a 100 mm cube that fits in your hand.

50 W per channel into 4 Ω
Five inputs: Bluetooth 5.0, RCA, 3.5 mm AUX, USB and microSD
Silent, fanless and cool-running
High gloss black or walnut finish
1-year warranty, Ottawa-based support

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SKU: N/A Categories: Radique Audio Products, Electronics Tags: amp, audio adapters, audio booster, audio cables, audio components, audio connectors, components, electronics, home audio, home theatre cables, sound system, stereo, vintage home audio

Description
Additional information

Description

Radique Audio · Tiny but Mighty

50 watts a channel, in the palm of your hand

The RA-Mini is a compact Class D stereo amplifier for passive speakers: five ways to connect, silent fanless operation, and big sound from a 100 mm cube that weighs just 160 g.

Who it’s for Five inputs Speakers Specs FAQ Manual

The short answer

The RA-Mini is a compact Class D stereo amplifier from Radique Audio: 50 W per channel into 4 Ω (100 W total), for passive speakers of 4 to 8 Ω. It connects five ways (Bluetooth 5.0, RCA, 3.5 mm AUX, USB and microSD), runs cool and silent with no fan, works with active subwoofers through their high-level inputs, and comes in high gloss black or walnut with a 1-year warranty and a full online manual in English and French.

See the RA-Mini in action, and hear why this tiny amp keeps surprising our customers.

Who the RA-Mini is for

A second or third system

You know great sound. The RA-Mini brings it to the office, bedroom or den at a price that respects your budget. Many of our audiophile customers have bought one, and some more than one.

A first great system

A simple knob and a few buttons, no confusing menus. Parents and grandparents have bought the RA-Mini as a first amplifier to share their love of good sound with the next generation.

Small spaces

Apartments, dorms, studios, home offices and workout rooms: it fits on a bookshelf or a desk corner and still fills the room.

New life for classic speakers

Pair modern, efficient amplification with a set of vintage bookshelf speakers, or add an affordable zone to a multi-room setup.

Five ways to connect

Press the Mode button to switch between them.

Bluetooth 5.0

Stream from your phone, tablet or computer, up to 12 m away. Your device’s volume slider controls the overall level.

RCA stereo

CD players, tuners, cassette decks, DACs, and turntables with a phono preamp. The RA-Mini has no phono stage of its own.

3.5 mm AUX

Computers, tablets and portable players: anything with a headphone or line output.

USB

Play MP3, WAV, FLAC, WMA or APE files straight from a flash drive (up to 64 GB).

microSD (TF) card

A standalone music player with the same lossless formats, and the lowest-noise digital source on the RA-Mini.

A DAC that sounds great

Digital sources run through a Jieli AC6926A processor: 95 dB+ signal-to-noise ratio and 20 Hz – 20 kHz response.

Choosing speakers

The RA-Mini drives passive (unpowered) speakers. It isn’t for powered, self-amplified speakers.

Impedance

4–8 Ω is ideal, and 3–10 Ω works. Outside that range, expect reduced performance or the thermal protection stepping in.

Sensitivity

Bookshelf and desktop speakers (85–92 dB) are an excellent match; floorstanders (88–95 dB) do well in small to medium rooms; below about 84 dB, bigger spaces may need more power.

Connections

Gold-plated 5-way binding posts take bare wire, spades, pins and banana plugs, including our gold-plated banana plugs.

Why Class D

Class D amplifiers are about 85–90% efficient, compared with 50–70% for Class AB. That’s why the RA-Mini runs cool, needs no fan, stays silent, and fits in your hand.

Add a subwoofer

Run the RA-Mini’s speaker outputs into an active subwoofer’s high-level inputs, then from the sub’s high-level outputs to your speakers. The sub’s crossover handles the bass. There’s no dedicated sub pre-out, which is typical at this size.

Specifications

Amplifier
Output power	50 W per channel @ 4 Ω (100 W total)
Class	Class D, passive cooling, no fan
Speakers	Passive, 4–8 Ω optimal (3–10 Ω functional)
Processor	Jieli AC6926A · SNR ≥95 dB · 20 Hz – 20 kHz
Protection	Automatic thermal protection
Power supply	External, 100–240 V worldwide · DC 19 V / 3.47 A

Connections & build
Inputs	Bluetooth 5.0 · RCA · 3.5 mm AUX · USB · microSD
Formats	MP3, WAV, FLAC, WMA, APE (USB and microSD)
Outputs	Gold-plated 5-way binding posts
Size	100 × 100 × 50 mm (3.94 × 3.94 × 1.97 in)
Weight	160 g (5.6 oz)
Finish	High gloss black or walnut

In the box

RA-Mini amplifier, factory-tested
External power supply and power cord
Card with a QR code to the online manual (English and French)

You’ll also need

Speaker cables, such as our house speaker cables, with banana plugs if you like
An RCA or 3.5 mm cable for wired sources
A USB drive or microSD card for file playback

Browse all our Radique Audio cables and accessories.

RA-Mini questions

Is the RA-Mini powerful enough for my speakers?

For most bookshelf and desktop speakers, yes: 50 W per channel into 4 Ω is plenty in small and medium rooms. Speakers rated 85 dB sensitivity or higher are the best match; below about 84 dB, a large room may need a bigger amp.

Can I connect a turntable?

Yes, if the turntable has a built-in phono preamp or you use a separate one. The RA-Mini has no phono stage, so connect through the RCA input.

Can I use it with powered speakers?

No. The RA-Mini is an amplifier for passive (unpowered) speakers, ideally 4–8 Ω.

Does it work with a subwoofer?

Yes, with active subwoofers that have high-level (speaker-level) inputs and outputs. Connect the RA-Mini to the sub’s high-level inputs and the sub’s outputs to your speakers.

How far does Bluetooth reach?

Up to 12 m with a clear line of sight. It reconnects to your paired device automatically, and your phone’s volume slider controls the overall level.

Does it get hot or make noise?

No. Class D efficiency means it runs cool with passive cooling and no fan, so it’s completely silent. Leave 5–8 cm (2–3 in) of clearance around it for airflow.

Is there a manual in French?

Yes. The full owner’s manual is online in English and French, with setup, troubleshooting and warranty details.

Do you ship to the United States?

Yes. On Radique Audio products we add the US import duties and fees at checkout and prepay them for you, so there’s nothing to pay at delivery.

What warranty does it have?

A 1-year Bumper-to-Bumper manufacturer warranty covering defects, component failures and performance issues, with support from our team in Ottawa. See the warranty FAQ.