ART SDA1
MRP - Rs. 50,968
ART SDA1 two-channel Class D power amplifier: 140 W per channel at 8 Ω, 400 W bridged, 280 W for 70 V line, XLR and TRS inputs, 1U. Available in India from Shivansh Electronics, Kolkata, West Bengal, India.
VISUAL GUIDE — See Every Photo, Spec & Setup Step (PDF)
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Specifications
| Amplifier class | Digital switching (~435 kHz), Class D |
| Stereo output power | 2 x 140 W RMS at 8 Ω; 2 x 200 W RMS at 4 Ω; 2 x 100 W RMS at 2 Ω; 2 x 80 W RMS at 16 Ω |
| Bridged output power | 400 W RMS mono at 8 Ω; 280 W RMS mono at 16 Ω; 200 W RMS mono at 4 Ω; 280 W RMS for 70 V line |
| Minimum load impedance | 2 Ω per channel; 4 Ω mono |
| Frequency response | 20 Hz to 20 kHz, ± 0.5 dB |
| THD (1 kHz, 4 Ω) | < 0.05 % (typical) |
| Hum and noise | > 95 dB below clipping, A‑weighted |
| Input sensitivity | 0.707 V for full power |
| CMRR | > 60 dB (typical at 1 kHz) |
| Inputs | XLR (balanced); 1/4 inch TRS (balanced / unbalanced) |
| Outputs | Multi‑way binding posts |
| Power requirements | USA 90‑125 V AC 50‑60 Hz, 875 VA max.; Europe 230 V AC 50‑60 Hz, 875 VA max.; export units configured for the country of destination |
| Dimensions (H x W x D) | 1.75 x 19.0 x 9.5 inch (44.45 x 482.6 x 241 mm), 1U |
| Weight | 3.4 kg (7.5 lb) |
Product overview
The ART SDA1 is a two-channel Class D power amplifier for studio and installation use, delivering 140 watts per channel at 8 ohms in a 1U rackmount chassis.
Class D amplifiers are extremely efficient, so they generate less heat; without large heat sinks they can be smaller and lighter, and they need no internal cooling fan, which suits critical listening rooms that require a low noise floor. The SDA1 delivers 200 watts per channel at 4 ohms, 400 watts at 8 ohms bridged to mono and 280 watts bridged to mono for 70 V line operation. Each channel has an independent volume control and status LEDs for signal activity, clipping and protection; the rear panel has balanced XLR and 1/4 inch TRS inputs and binding post outputs for bare wire, banana plugs or spade connectors.
| RMS at 8 Ω | 2 x 140 W |
| Bridged mono at 8 Ω | 400 W |
| Frequency response ± 0.5 dB | 20 Hz - 20 kHz |
| 1U rackmount | 3.4 kg |
Key features
- 2-channel Class D power amplifier (digital switching)
- 140 W per channel at 8 Ω, 200 W per channel at 4 Ω
- 400 W bridged at 8 Ω; 280 W bridged for 70 V line
- XLR and 1/4 inch TRS inputs
- Binding post outputs
- 20 Hz - 20 kHz frequency response (± 0.5 dB)
- 1U rackmount, steel and aluminium chassis
In the box
- SDA1 power amplifier
ART SDA1: frequently asked questions
Does the SDA1 have a cooling fan?
No. As a Class D design it generates less heat and needs no internal cooling fan, which keeps the noise floor low for critical listening.
Can it drive a 70 V line?
Yes: bridged to mono it delivers 280 W RMS for 70 V line operation.
Is the SDA1 a current product?
ART lists the SDA1 in its legacy (discontinued) products; this page gives the facts from ART's legacy page and owner's manual.
Where can I buy the ART SDA1 in India?
The ART SDA1 is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.
Workflow 1: Quiet power for studio monitors
Control rooms and critical listening rooms.
Connections
| Connect | To |
|---|---|
| Mixer or monitor controller | SDA1 XLR or 1/4 inch TRS inputs |
| SDA1 binding posts | Passive monitors |
Setup
- Turn both attenuators fully counter-clockwise before switching on.
- Switch on and slowly raise the levels.
- Keep the Clip LEDs from lighting continuously.
Tip: No internal cooling fan: suited to rooms that need a low noise floor.
Workflow 2: Bridged mono for a 70 V line
Commercial installations.
Connections
| Connect | To |
|---|---|
| Source | SDA1 channel 1 input |
| SDA1 bridged output (red binding posts) | 70 V line loudspeakers |
Setup
- With the power off, set the rear Stereo / Bridge switch to bridge.
- Connect the input to channel 1 and the line across the red binding posts.
- Switch on last and set the level with channel 1.
Tip: Bridged to mono the SDA1 delivers 280 W RMS for 70 V line operation.
