RA-Mini: Compact Class D Amplifier – Tiny but Mighty | Radique

Radique Audio RA-Mini: Tiny but Mighty Class D Amplifier

50W per channel of great-sounding audio in a device that fits in the palm of your hand. Five ways to connect. One modest price.

See the RA-Mini in action: Watch the quick overview to hear why this tiny amp has been surprising customers at Radique.

📖 What Is the RA-Mini Amp?

The Radique Audio RA-Mini Amp is a tiny but mighty compact Class D amplifier designed to bring great sound to any space—without the bulk of traditional amplifiers. Whether you’re building a second or third listening system for your office or bedroom, introducing someone to quality audio on a budget, or maximizing sound in a space where real estate is at a premium, this compact Class D amplifier delivers:

• 50 watts per channel of pure Class D power

• Five independent input options (wireless + wired)

• Great-sounding DAC (AC6926A chip with 95dB+ signal-to-noise ratio)

• Lossless audio support (FLAC, WAV, APE formats)

• Compact, lightweight design (160g, fits in the palm of your hand)

• 1-year Bumper to Bumper Warranty + Ottawa-based customer support

👥 Who Is This Perfect For?

🎵 Audiophiles Building a Budget 2nd or 3rd System

You know great sound. This compact Class D amplifier delivers great-sounding audio in your office, bedroom, or den at a price that respects your budget. During our soft launch, a number of our audiophile customers have already embraced this—and purchased RA-Mini Amps for a variety of budget and/or small space applications (some have even purchased more than one!).

🎓 Gateway Device: Introducing Anyone to Great Audio

Want someone to experience the joy of truly great sound without spending hundreds? The RA-Mini Amp is fun, space-efficient, easy to use, and won’t break the bank. During our soft launch, audiophile parents and grandparents purchased RA-Minis as the perfect first amplifier—introducing children, grandchildren, and friends to equipment that sounds genuinely great, with controls they can learn (simple knob and buttons—no confusing menus). It’s an affordable way for parents and mentors to share a love of quality audio with the next generation.

🏠 Apartment Dwellers & Space-Constrained Setups

Fits in the palm of your hand. Mount it on a bookshelf, nestle it in on your desk, or tuck it into a corner. The RA-Mini Amp delivers big audio from a small footprint—perfect for studios, dorms, home offices, bedrooms, workout areas, and anywhere where real estate is at a premium but great sound matters.

💼 Desk Listeners, Home Office Warriors, Creators

Multiple input options mean you can connect your phone, computer, music library, CD player, turntable (with built-in phono pre-amp), or offline MP3 collection simultaneously. Switch between them with the Mode button. Perfect for music while you work, create, exercise, relax, or wind down.

⚡ Class D Efficiency – Why It Matters

Most amplifiers run hot because they waste power as heat. Class D amplifiers are fundamentally different:

• Class A amplifiers: ~25% efficient (very hot, very inefficient)

• Class AB amplifiers: ~50–70% efficient (warm, moderate efficiency)

• Class D amplifiers: ~85–90% efficient (cool, highly efficient)

This compact Class D amplifier design is ~85-90% efficient, meaning:

✅ Stays cool even during extended listening – No thermal stress on components
✅ No fan = no fan noise – Whisper-quiet operation
✅ Safe for continuous operation – 24/7 use without concern
✅ Smaller, lighter chassis – Why it fits in the palm of your hand
✅ Longer component lifespan – Less heat = less wear

This is why Class D has become the standard for modern compact amplifiers worldwide. The RA-Mini Amp proves that compact doesn’t mean compromise.

🎵 Audio Quality – The AC6926A DAC Advantage

The RA-Mini Amp’s heart is the AC6926A, a great-sounding digital audio processor from Jieli Technology. This single chip handles:

DAC Conversion: Converts digital audio (Bluetooth, USB, TF Card) to analog with precision
Signal Processing: Optimizes audio for clarity and detail
Codec Management: Supports MP3, WAV, FLAC, WMA, APE formats seamlessly
Bluetooth 5.0 Stack: Manages wireless connectivity reliably

Audio Specifications:

• Signal-to-Noise Ratio (SNR): ≥95dB

• Frequency Response: 20Hz – 20kHz (full audible spectrum)

• Dynamic Range: 90 dB

• Sampling Rates: 8KHz, 11.025KHz, 16KHz, 22.05KHz, 24KHz, 32KHz, 44.1KHz, 48KHz

Supported Formats:

• MP3, WAV, FLAC, WMA, APE (all at up to 48KHz sampling rate, 16-bit)

• FLAC recommended for best quality

What does this mean? Great-sounding audio at the component level. The noise floor is inaudible to the human ear at normal listening levels.

📊 Technical Specifications

Power & Amplification

Output Power: 50W per channel @ 4Ω impedance (100W total stereo)

Amplifier Class: Class D (high efficiency, minimal heat)

Speaker Impedance: 4–8Ω optimal; 3–10Ω functional range

Thermal Performance: Passive cooling (no fan, completely silent)

Thermal Safety: Automatic overheating protection

Physical Specs

Dimensions: 100mm (W) × 100mm (D) × 50mm (H) | 3.94″ (W) × 3.94″ (D) × 1.97″ (H)

Weight: 160g (5.6 oz)

Chassis: High-quality plastic (durable, lightweight)

Finish Options: High Gloss Black, Faux Wood Grain Walnut

Feet: Metal feet for ventilation and aesthetic placement

Power Supply (Included)

Input: AC 100–240V, 50–60Hz (worldwide voltage auto-switching)

Output: DC 19V / 3.47A (65.93W)

Connector: 5.5mm × 2.5mm barrel jack (center-positive)

Cable Length: ~1.2 meters

Certifications: CE, FCC approved

Note: Works worldwide—no converter needed

Digital Audio Processor

Chip: AC6926A (Jieli Technology)

DAC Type: Digital-to-analog conversion

SNR (Signal-to-Noise Ratio): ≥95 dB (benchmark standard)

Frequency Response: 20Hz – 20kHz (full audible spectrum)

Dynamic Range: 90 dB

Supported Formats: MP3, WAV, FLAC, WMA, APE

Bluetooth Connectivity

Bluetooth Version: 5.0

Range: Minimum 12 meters (line-of-sight, barrier-free)

Pairing: Simple—press Mode button, pair device, auto-reconnects

Device Compatibility: iOS, Android, Windows, Mac, Linux (any Bluetooth-enabled device)

Audio Input Methods

Speaker Terminals: Gold-plated 5-way binding posts

Compatible Connectors: Banana plugs, spade connectors, pin connectors, bare speaker wire — including the full range of Radique Audio speaker connectors

Speaker Compatibility: Passive speakers (4–8Ω optimal)

Power Delivery: Full 50W per channel @ 4Ω

Front Controls

Environmental

Operating Temperature: 0°C to 40°C (32°F to 104°F)

Storage Temperature: -20°C to 60°C (-4°F to 140°F)

Humidity: Standard room humidity (no special requirements)

Ventilation: Minimal; 2–3 inches clearance on all sides recommended

🔌 Five Ways to Connect

The RA-Mini Amp gives you flexibility. Choose your favorite input method—or switch between several.

1.🔵 Bluetooth 5.0 (Wireless Streaming)

Best for: Streaming from your phone, tablet, or computer

Supports: MP3, AAC, SBC codecs (standard for all Bluetooth devices)

Range: Up to 12 meters line-of-sight

Pairing: Simple one-time setup; auto-reconnects to your devices

Stream music from Spotify, Apple Music, YouTube, podcasts, audiobooks, or any app on your phone. Bluetooth 5.0 provides stable, fast connectivity even in typical home environments. When streaming via Bluetooth, your source device (phone, tablet, etc.) can act as a volume control for your system, giving you convenient remote adjustment without needing a separate remote control.

2. 💾 USB Audio (Digital File Playback)

Best for: Playing music files from flash drives or direct computer connection
Supports: MP3, WAV, FLAC, WMA, APE (lossless audio formats)
Format: FAT32-formatted USB flash drives (up to 64GB supported)
Computer: Direct USB connection (no driver installation required)

Perfect for creating a dedicated music player library without relying on streaming services.

3. 🎵 TF Card / MicroSD (Recommended Offline Playback)

Best for: Standalone music player without computer or phone needed
Supports: MP3, WAV, FLAC, WMA, APE (lossless audio formats)
Sampling rates: 8KHz–48KHz
Capacity: Compatible with standard microSD cards (up to 64GB supported)
Why TF Card is superior to USB: Lower electrical noise, cleaner sound, best quality for digital playback

Insert a microSD card with your music library and play independently. Perfect for home office, bedroom, or gym setups.

4. 🎚️ RCA Stereo Input (Analog – Vintage Equipment Compatible)

Best for: Connecting vintage stereo equipment, CD players, turntables with preamp, tuners, and cassette decks
Connectors: Gold-plated RCA inputs (L/R stereo)
Use case: Adding modern amplification to legacy audio components

Perfect if you have an old tuner, CD player, cassette deck, or turntable that needs modern power amplification for passive speakers.

5. 🎧 3.5mm AUX Input (Analog – Standard Connection)

Best for: Connecting computers, tablets, portable media players, or any device with 3.5mm output
Connectors: Standard 3.5mm stereo jack
Use case: Desktop audio setup, direct device connection

Simple direct connection for any device with a standard headphone jack.

📦 What’s in the Box

✓ 1 × Radique Audio RA-Mini Amp (fully assembled, factory-tested)
✓ 1 × External Power Supply (AC 100–240V input, DC 19V/3.47A output)
✓ 1 × Power Cord (standard wall plug to barrel connector, ~1.2 meters)
✓ 1 × RA-Mini Card (physical card with QR code linking to online manual)

🛒 NOT Included (You’ll Need)

• Speaker cables (bare wire, banana plugs, spade connectors, or pin connectors) – including Radique Audio branded connectors

• RCA cables (if using analog input) – available from Radique

• 3.5mm audio cable (if using AUX input) – available from Radique

• USB flash drive (if using USB playback)

• MicroSD card (if using TF Card playback)

📱 Online Manual Access

• Scan the QR code on the RA-Mini Card to access the full manual online

• Available in English and French

• No printed manual included (digital-first, eco-friendly approach)

• Saves paper and reduces packaging waste

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  🎚️ Subwoofer Compatibility

  Good News: It Works with Active Subwoofers

  The RA-Mini Amp works with active subwoofers that feature high-level inputs and outputs. This is common on quality modern subs.

  How to Connect:

  1. Simply connect the speaker outputs from the RA-Mini to the subwoofer’s high-level inputs

  2. Connect an additional set of speaker cables from the subwoofer’s high-level outputs to your speakers

  3. The subwoofer’s internal crossover handles the bass separation

  4. You’ll get full bass integration without a dedicated subwoofer output

  What It Doesn’t Have:

  • No dedicated subwoofer pre-out connector (typical for amplifiers in this size/price category)

  • But high-level passthrough on modern active subs = full bass management anyway

  Result: You get complete bass management and a fully integrated audio system. The RA-Mini Amp’s speaker outputs can drive your main speakers while providing audio signal to your active subwoofer simultaneously through high-level connections.

Owner’s Manual & Support

The full RA-Mini Owner’s Manual is available online in English and French — complete with setup instructions, safe connection guidance, troubleshooting, and more.

📋 Warranty & Support

Manufacturer Warranty

The RA-Mini Amp comes with a 1-year manufacturer warranty that covers defects in materials and workmanship.

Coverage:

• Duration: 1 year from date of purchase

• Covers: Manufacturing defects, component failures, and performance issues

• Does not cover: Accidental damage, misuse, water damage, or normal wear and tear

How to Claim

1. Keep your receipt and documentation – Required for warranty claims

2. Contact our local tech support – We’re here to help with any issues

3. Return or repair – Defective units can be repaired or replaced under warranty

Local Ottawa-Based Support – Our Differentiator

We stand behind the RA-Mini Amp with direct, responsive local tech support:

Email: [email protected]

Our Ottawa-based Radique team provides personalized assistance for setup, troubleshooting, compatibility questions, and warranty service. No outsourced support—just direct access to experts who know the product inside and out.