Pro-Ject Amp Box DS2 Power Amplifier - Black

One Hundred Watts, and Side Panels in Real Wood

The Amp Box DS2 makes 100 watts per channel into 8 ohms and 140 into 4, from a Class D design in a chassis 206mm wide that weighs 1.67kg without its supply.

It is built to sit with the rest of Pro-Ject's Box Design range. A turntable, a phono stage and this amplifier stack into a system occupying roughly the footprint of one conventional component.

The one that stands out is the finish. Magnetic side panels in eucalyptus, rosenut or walnut clip onto the aluminum casing, so the amplifier can be furniture rather than equipment.

Inside the Chassis

Class D is what makes the size work at all. Frequency response runs 10Hz to 50kHz, and distortion stays under 0.1% measured at 90 watts, which is close to the amplifier's full rated output.

The noise floor sits better than 90dB down. Inputs are a single pair of RCA sockets, which makes this an amplifier for a system built around one preamplifier rather than one juggling several sources of its own.

With the aluminum casing it measures 206 by 68 by 194mm and weighs 1,670g. With the wood side panels fitted it becomes 240mm wide and 2,130g, which is still smaller than most amplifiers of half the output.

Who Is This Amplifier Best For?

• You are building a Box Design system — it is sized and finished to stack with Pro-Ject's other Box components, so a full system takes about the shelf space of one ordinary amplifier.
• You want equipment that looks like furniture — magnetic side panels in eucalyptus, rosenut or walnut clip straight onto the aluminum casing, which almost nothing else at this size offers.
• Your speakers are a normal load — 100 watts into 8 ohms and 140 into 4 drives most domestic speakers properly, which is more than the footprint suggests.
• Space genuinely matters — 206mm wide and 1.67kg means it fits on a desk or a shelf where a conventional 100-watt amplifier could not go at all.
• You want a preamp voiced alongside it — Pre Box RS2 Digital supplies the volume and the input switching for this power stage

How Does It Connect to Your System?

Connect a preamplifier to the single pair of RCA inputs and your speakers to the binding posts. If you want the wood side panels, they clip on magnetically and add 34mm to the width.

It runs cool enough to sit on a desk or inside a cabinet without clearance planned around it.

Pairs Well With

Here are some great companions:

• Preamplifier: Required, and the natural next decision — see our Preamplifiers.
• Speaker Cables: Carry the current properly — see our Speaker Cables.
• Interconnects: Balanced XLR is the better run from preamp to amp — see our Interconnect Cables.
• Audio Rack: Give the amplifier a proper shelf — see our Audio Racks.

Frequently Asked Questions

How much power does it make?

100 watts per channel into 8 ohms and 140 watts per channel into 4 ohms.

How small is it?

206mm wide, 68 high and 194 deep with the aluminum casing, weighing 1,670g without the power supply. With wood side panels it is 240mm wide and 2,130g.

What are the side panels?

Magnetic panels in eucalyptus, rosenut or walnut that clip onto the aluminum casing, so the amplifier can be finished to suit the room.

How many inputs does it have?

One pair of RCA sockets. There is no balanced input and no volume control, so it needs a preamplifier ahead of it.

What are the bench figures?

Frequency response of 10Hz to 50kHz, distortion under 0.1% at 90 watts, and a noise floor better than 90dB down.

Does it need much ventilation?

Very little. The Class D output stage runs cool enough for a desk or a closed shelf.

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