Choosing an amplifier-powered mixer can be tricky, but knowing the basics will help you get it right. Here’s a straightforward guide covering the essentials—from power and channels to built-in effects and practical uses—whether you’re a beginner or a pro.
1. What is an Amplifier Powered Mixer?
An amplifier-powered mixer combines two core audio components into one unit: a mixing console and a power amplifier. This combo simplifies setup, as you only need one piece of equipment to handle audio input, processing, and amplification. It’s ideal for live events, rehearsals, and small venues where portability and ease of use are key.
2. Power Output: How Much Do You Need?
The right power output depends on your speaker setup and venue size:
- Wattage: Choose based on your speaker needs. For small indoor spaces, 300W might suffice, while large venues may need 1000W or more.
- Impedance: Ensure the mixer’s impedance matches your speakers, typically 4 or 8 ohms. Matching them helps prevent distortion and ensures better sound quality.
3. Channels and Inputs: What to Look For
Consider how many audio sources you’ll connect.
- Channel Count: Small setups (like solo gigs) might need only 4 channels. For bands or larger groups, look for 8-12 channels.
- Input Types: Standard mixers include XLR for mics, 1/4″ for instruments, and RCA for media players. If you’re using stereo inputs, ensure the mixer supports it.
4. Equalization (EQ) and Built-in Effects (FX)
- EQ: Look for mixers with at least 3-band EQ (bass, mid, treble) per channel, as this lets you adjust each audio source independently. Advanced models may offer graphic EQs.
- FX Processors: Basic models have reverb or delay, while advanced ones include multiple effects. Effects can enhance live sound but aren’t essential for everyone.
5. Phantom Power: A Must for Condenser Mics
If you’re using condenser mics, phantom power (usually 48V) is a must. Most mixers with mic inputs provide a phantom power switch that applies power across all XLR inputs.
6. Connectivity Options: Wired and Wireless
- Bluetooth: Some mixers include Bluetooth for easy wireless streaming, allowing you to play audio directly from your smartphone or tablet.
- USB and SD Card Ports: Many mixers allow recording directly onto a USB or SD card, which is handy for capturing live performances or rehearsals.
7. Outputs: Main and Auxiliary
- Main Outputs: Look for XLR and 1/4″ main outputs for versatility.
- Aux Outputs: For monitor mixes or additional setups, look for at least one aux output. Multiple aux outputs give you more flexibility in controlling different audio zones or monitors.
Testing Before Full Use
Testing your mixer before a live event prevents unexpected issues. Start by connecting speakers and inputs, keeping the volume low at first. Gradually increase the volume to check sound clarity. Any static or failure to produce sound can indicate connection issues, a faulty cable, or incorrect setup.
Pros and Cons of Amplifier Powered Mixers
- Pros: Simple setup, portability, cost-effective for small events, and fewer cables to manage.
- Cons: Limited flexibility compared to separate amp and mixer setups; high-volume settings may affect sound clarity.
Typical Uses for Amplifier-Powered Mixers
- Live Gigs: Ideal for solo artists, bands, or public speakers in small to medium venues.
- Rehearsals: Great for practice spaces where ease of setup and transportability matter.
- Houses of Worship: Provides reliable sound for services, with simple setup requirements.
- Schools and Community Centers: Often used for events where dependable audio is required with minimal technical support.
Recommended Models Based on Budget
- Budget ($200-$500): Look for basic models from brands like Behringer or Mackie with essential features and moderate power output.
- Mid-Range ($500-$1000): Yamaha’s EMX series or the Peavey XR line offers more channels, better EQ options, and built-in effects.
- High-End ($1000+): Advanced models with extensive channels, higher power, and premium build quality are suited for demanding environments and large venues.
Price Guide
Prices for amplifier-powered mixers vary widely based on power output, channel count, and added features:
- Entry-Level: $200 – $500
- Mid-Range: $500 – $1000
- Professional: $1000 – $2000+
Final Tips
When choosing an amplifier-powered mixer, match its specs to your specific needs. Factor in your venue size, number of audio sources, and need for effects or recording features. Selecting a model with slightly more power and channels than you currently need can give you room to grow.