SONODYNE SLA 3104
MRP - Rs. 1,05,020
SONODYNE SLA 3104: four channel power amplifier, 4 x 600 W into 4 Ω, 1200 W bridged, 2RU, SLA Series. Available in India from Shivansh Electronics, Kolkata, West Bengal, India.
VISUAL GUIDE — See Every Photo, Spec & Setup Step (PDF)
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Amplifier
| Description | 4 channel power amplifier |
| Channels | 4 |
| Output power (per channel) | 8 Ω: 400 W; 4 Ω: 600 W; 8 Ω bridged: 1200 W |
| Output circuitry | H |
| THD at rated power | Below 1 % |
| Damping factor | Above 300 |
| Signal to noise ratio | 105 dB (20 Hz - 20 kHz) |
| Frequency response | 20 Hz - 20 kHz, ±0.5 dB |
| Amplifier and load protection | Short circuit, output DC, thermal, RF |
Connections and controls
| Input connector | XLR |
| Output connectors | Twist‑lock connector |
| Front panel | Clip, protect and signal LED indicators; 42 detent rotary volume control |
| Rear controls | 3 position slide switch for mode: dual, mono, bridge; 3 position slide switch for sensitivity: 0.775 V, 1 V, 1.4 V |
General
| Input power | 1700 W (as per BIS IS 616:2017, IEC 60065:2014 / IEC 62368‑1) |
| Mounting | 2RU |
| Dimensions (W x H x D) | 483 x 88 x 446 mm |
| Net weight | 18.8 kg |
| Agency approvals | CE; BIS IS 616:2017, IEC 60065:2014 / IEC 62368‑1 |
| Warranty | 2 years |
Product overview
The SONODYNE SLA 3104 is a four channel power amplifier from the SLA Series, delivering 600 W per channel into 4 Ω in a 2RU chassis.
The SLA Series is SONODYNE's range of 2RU power amplifiers: nine models, both dual and four channel, giving a broad choice of power output so a model can be matched to the power requirements of the application. All models can operate in three modes: dual channel, parallel (mono) and bridge. The SLA 3104 delivers 400 W per channel into 8 Ω, 600 W per channel into 4 Ω and 1200 W in 8 Ω bridged mode, with a signal to noise ratio of 105 dB and a frequency response of 20 Hz - 20 kHz (±0.5 dB).
| Output power into 4 Ω | 4 x 600 W |
| 8 Ω bridged | 1200 W |
| Signal to noise ratio | 105 dB |
| Rack chassis | 2RU |
Key features
- Soft start
- High SNR
- Low THD, IMD
- Heavy-duty power supply for high dynamic power
- Short-circuit, thermal, output DC, RF protection
- Variable-speed twin fan back-to-front cooling
- Twist-lock output connectors
- LED indicators for metering, status and operating mode
- Variable sensitivity selector
Power for every mode
The SLA 3104 runs in dual channel, parallel (mono) or bridge mode, selected at the rear with a 3 position slide switch (dual, mono, bridge). Into 8 Ω it gives 400 W per channel, into 4 Ω 600 W per channel, and bridged into 8 Ω 1200 W. A second slide switch sets the input sensitivity to 0.775 V, 1 V or 1.4 V.
Built for continuous duty
The SLA Series uses a large number of matched complementary devices in parallel with a linear transfer characteristic, for low distortion and a high safe operating area at elevated power levels. A heavy-duty power supply provides high dynamic power, a soft start eases switch-on, and the amplifier and load are protected against short circuit, output DC, thermal and RF faults. Cooling is by variable-speed twin fans, back to front.
Connections and front panel
Each of the four channels has an XLR input and a twist-lock connector output. The front panel carries clip, protect and signal LED indicators and a 42 detent rotary volume control per channel, as given in the official specification.
In the box
- SLA 3104 power amplifier
SONODYNE SLA 3104: frequently asked questions
How much power does the SLA 3104 deliver?
400 W per channel into 8 Ω, 600 W per channel into 4 Ω and 1200 W in 8 Ω bridged mode.
Which operating modes are available?
Dual channel, parallel (mono) and bridge, selected on the rear panel.
Which connectors does it use?
Inputs: XLR. Outputs: twist-lock connector.
How large and heavy is it?
It is a 2RU unit measuring 483 x 88 x 446 mm (W x H x D) and weighs 18.8 kg.
Where can I buy the SONODYNE SLA 3104 in India?
The SONODYNE SLA 3104 is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.
Workflow 1: Four channel (dual) operation
Installations driving 4 separate loudspeaker loads.
Connections
| Connect | To |
|---|---|
| Source or processor outputs | XLR inputs |
| Channel outputs | Loudspeakers (8 Ω or 4 Ω) |
Setup
- Rack the SLA 3104 (2RU).
- Set the rear MODE switch to dual / stereo.
- Connect each source to its channel input and each loudspeaker to its channel output.
- Set each channel with its front volume control.
Tip: Into 4 Ω each channel delivers 600 W.
Workflow 2: Bridge mode
Systems that need more power into one 8 Ω load.
Connections
| Connect | To |
|---|---|
| Source output | Input used for bridge mode |
| Bridged output | 8 Ω loudspeaker load |
Setup
- Set the rear MODE switch to bridge.
- Feed the input used for bridge mode.
- Connect the 8 Ω load to the bridged output.
Tip: Bridged into 8 Ω the SLA 3104 delivers 1200 W.
Workflow 3: Parallel (mono) mode
Installations sending one signal to several loudspeaker loads.
Connections
| Connect | To |
|---|---|
| Source output | Input 1 |
| Channel outputs | Loudspeakers |
Setup
- Set the rear MODE switch to parallel / mono.
- Feed the source to the input.
- Connect the loudspeakers to the channel outputs.
Tip: All SLA models can operate in dual, parallel (mono) and bridge mode.
Workflow 4: Matching input sensitivity
Systems with sources of different output levels.
Connections
| Connect | To |
|---|---|
| Mixer or processor | XLR inputs |
Setup
- Choose the sensitivity setting on the rear panel (0.775 V, 1 V or 1.4 V).
- Set the channel levels with the front volume controls.
Tip: The LED indicators show signal, clip and protect status per channel.
Workflow 5: Four zones from one amplifier
Installations with four separate loudspeaker zones.
Connections
| Connect | To |
|---|---|
| Four source outputs | INPUT 1 - INPUT 4 (XLR) |
| CH 1 - CH 4 | Four loudspeaker zones |
Setup
- Set the MODE switch to dual.
- Connect one source to each XLR input.
- Connect each zone to its twist-lock output.
- Set each zone level with its volume control.
Tip: Each channel delivers 600 W into 4 Ω.
Workflow 6: Rack installation
Contractors building amplifier racks.
Connections
| Connect | To |
|---|---|
| Mains | Mains power cord |
Setup
- Mount the SLA 3104 in a 2RU rack space (483 mm wide, 446 mm deep).
- Connect inputs, outputs and mains.
- Switch on with the front power switch.
Tip: Cooling is by variable-speed twin fans, back to front.
