If you’re setting up a sound system for DJing, live performances, events, or studio monitoring, knowing how to properly connect two TS112A speakers and a subwoofer is essential for clean sound, balanced bass, and safe equipment operation. This detailed guide explains wiring methods, setup diagrams, gain staging, and pro tips so your system sounds powerful and distortion-free.
🔊 About the TS112A Speakers
The TS112A is a powered PA speaker made by Alto Professional. Since it’s active, it has a built-in amplifier, meaning you don’t need an external amp. That makes setup easier—but correct signal routing still matters.
🎛 Equipment You Need
Before connecting, make sure you have:
- 2 × TS112A powered speakers
- 1 × Powered subwoofer
- Mixer / DJ controller / audio interface
- XLR or TRS cables
- Power cables
🔌 Wiring Diagram Overview (Signal Flow)
Source → Subwoofer → Speakers
This is the recommended professional setup because:
✔ Sub handles low frequencies
✔ Speakers handle mids/highs
✔ Cleaner sound + less distortion
🧰 Step-by-Step Connection Guide
Step 1 — Connect Audio Source to Subwoofer
- Plug your mixer output into the INPUT of the subwoofer using XLR or TRS cable.
- Use Left/Right outputs if available.
Step 2 — Connect Subwoofer to Speakers
Most powered subs have HIGH PASS OUTPUT / THRU / LINE OUT ports.
- Connect Sub Out L → Speaker 1 Input
- Connect Sub Out R → Speaker 2 Input
👉 These outputs send filtered signal (without deep bass) to speakers.
Step 3 — Power On Sequence
Always power on in this order:
- Mixer / source
- Subwoofer
- Speakers
Power off in reverse order to avoid pops.
Step 4 — Set Volume Levels Properly
Use correct gain staging:
- Mixer master → 70%
- Sub level → 50%
- Speakers → 50–60%
Then fine-tune according to room size.
🎚 Recommended Crossover Settings
If your subwoofer has a crossover knob:
- Set between 80–120 Hz
- For DJ bass → ~100 Hz
- For vocals/live music → ~90 Hz
This ensures speakers don’t struggle with low frequencies.
⚠️ Common Mistakes to Avoid
Many beginners wire systems incorrectly. Avoid these:
❌ Connecting speakers directly to mixer and sub separately
❌ Running speakers at full volume
❌ Using cheap or damaged cables
❌ Ignoring grounding noise
🔊 Alternative Setup (Without Sub Outputs)
If your sub doesn’t have outputs:
- Send mixer L/R → speakers
- Send mixer booth/aux → sub
But this method is less balanced and not ideal for professional sound.
🎧 Pro Sound Tips
- Place subwoofer on floor center for strongest bass.
- Keep speakers at ear level.
- Use balanced cables (XLR/TRS) to reduce noise.
- Never clip signal lights.
📊 Ideal Speaker Placement Layout
Speaker —— Audience —— Speaker
(Sub in center)
This placement distributes sound evenly and prevents phase issues.
❓ FAQ — Connecting TS112A Speakers & Sub
Q1: Can I daisy-chain the speakers?
Yes. Connect sub → speaker 1 → speaker 2 using line out. But stereo separation will be lost.
Q2: Do I need a mixer?
Not always. If your controller has balanced outputs, you can connect directly.
Q3: Why does my system distort at high volume?
Likely gain staging is wrong or crossover is set too high.
Q4: Can I use one sub for two speakers?
Yes. One quality sub is enough for most small-medium setups.
🏁 Final Thoughts
Connecting 2 TS112A speakers and a subwoofer correctly is simple once you understand signal flow. The key rule is:
Always route sound through the sub first, then to speakers.
This gives you cleaner bass, safer operation, and professional audio quality.