| Number of channels | Three |
|---|---|
| Amplifier type | Installation |
| 100v | No |
| Low-impedance | Yes |
| DSP (Digital Signal Processing) | No |
| Power | 501-1000 watt |
Omnitronic A-3603 2.1 Class-D amplifier 3600 W
10452370
€ 799,00
Delivery 2-3 Working days
Description
Driving two tops and a sub, yet still hauling two amplifiers plus an external crossover? That eats up rack space, cables, and time at every setup. The Omnitronic A-3603 solves it in a single unit: a Class-D 2.1 amplifier with 2000 W for your subwoofer and 2 x 800 W for your tops, crossover already built in. Connect it, dial in the crossover frequency, play.
Features
Thanks to Class-D technology with a switching power supply, the A-3603 weighs just 9.1 kg and fits in 2 HE of your rack. The adjustable crossover between 50 and 250 Hz splits the signal cleanly between sub and tops, and via bypass you can simply drive it from an external DSP or speaker management system. Three channels with individual volume control, LED VU meters, and clip/protect indication keep you in control on stage. Balanced XLR inputs with link-through and lockable speaker connectors make cabling robust and fast.
Key features
- One amplifier for a full 2.1 setup: sub and two tops, no extra gear needed
- Built-in, variable crossover (50-250 Hz), so no separate crossover filter required
- Switchable to 3-channel mode for three fullrange speakers or extra zones
- Bypass for anyone who prefers to work with their own DSP or speaker processor
- Light and compact: 9.1 kg and 2 HE thanks to Class-D and a switching power supply
- Clear per-channel LED metering with clip and protect warnings
- Lockable speaker outputs and XLR link-through for a reliable setup
Technical specifications
- Type: 3-channel Class-D PA amplifier, switchable 2.1 / 3-channel
- Power at 4 ohm: 1 x 2000 W RMS (sub) + 2 x 800 W RMS (tops)
- Power at 8 ohm: 1 x 1000 W RMS (sub) + 2 x 400 W RMS (tops)
- Crossover frequency: variable 50-250 Hz
- Frequency range: 20 Hz - 20 kHz
- THD: < 0.003% @ 1 kHz
- Signal-to-noise ratio: > 100 dB
- Damping factor: > 500, slew rate > 10 V/µs
- Gain: channels 1 and 2: 26 dB, channel 3 (sub): 32 dB
- Inputs: 3 x XLR balanced (20 kOhm balanced / 10 kOhm unbalanced), with XLR link-through
- Outputs: 3 x lockable speaker connector
- Controls: 3 volume knobs, LED VU meters, clip and protect LEDs
- Housing: steel chassis with aluminum front panel, 19", 2 HE
- Power supply: 100-240V AC, 50/60 Hz, power draw 685 W
- Dimensions: 483 x 410 x 89 mm (W x D x H)
- Weight: 9.1 kg
Ideal for
- Mobile DJs with a 2.1 setup (sub + two tops)
- Fixed installations in cafes, bars, restaurants, and gyms
- Small clubs and dance schools
- Rental companies looking for a compact, complete amplifier solution
Pairs perfectly with
- Passive 4 or 8 ohm subwoofers and passive tops (e.g. the Omnitronic speaker series)
- External DSPs and speaker management systems via the bypass
- A 19" flight case or rack with at least 2 HE free
Pro Tip: Set the crossover around 100-120 Hz as a starting point for 12" or 15" tops, and lower it to 80 Hz for larger tops with solid low end. Watch the load per channel: one 4 ohm sub, or two 8 ohm subs in parallel, on the sub channel, never below 4 ohm.
In the box
- Omnitronic A-3603 amplifier
- Power cable with grounded plug
FAQ
Can I also use the A-3603 as a regular 3-channel amplifier?
Yes. In 3-channel mode you drive three fullrange speakers or three zones, without a crossover.
Do I still need a separate crossover or DSP?
No, the crossover (50-250 Hz) is built in. If you'd still rather use your own DSP, switch on the bypass.
How much power do I get at 8 ohm?
1000 W RMS on the sub channel and 2 x 400 W RMS on the tops. At 4 ohm that rises to 2000 W and 2 x 800 W.
Which speaker connectors does it have?
Lockable speaker connectors, compatible with standard 4-pin speaker cables.
One unit, one rack space, and your whole 2.1 setup is running. Order now at Pro Gear and get your sub and tops working effortlessly.
| Number of channels | Three |
|---|---|
| Amplifier type | Installation |
| 100v | No |
| Low-impedance | Yes |
| DSP (Digital Signal Processing) | No |
| Power | 501-1000 watt |