Free UK DeliveryFinance at checkout30 Day ReturnsWorldwide DeliveryAudio Affair Facebook

Warehouse Clearance

Pro-Ject Stereo Box DS3 Integrated Amplifier


. 0 Reviews . Write a Review

Enquiry/price check? Click here SKU: PRJESBDS3
Ex VAT: £665.83

Available - please select an option below

Condition: Brand new in original retail packaging

* Required Fields


Earn 799 loyalty points when you order this item.

You can earn loyalty points on every order you place on this website. If you select to create an account at checkout, your loyalty points will be saved and you can use these to discount future orders online. 


Each product page shows you how many loyalty points you can earn when you order that item. Essentially, for each £1 you spend, you earn 1 loyalty point and for every 1 point earned, 1p will be added to your loyalty point balance (this is the same as some of the UK's biggest loyalty point cards). So for example, if you spend £500, you'll earn 500 loyalty points which can be used to discount a future order by £5.00. 


Read more

Get a trade in quote

To reduce the price of this item, we may be able to accept your old equipment as a trade in (part exchange).

Please send us your details along with details of the item(s) you'd like to trade in and we'll come back to you within 2 working days (but usually a little sooner) with a quote.

Send us a message now

Do you have any questions on this item you'd like us to answer? Or have you seen it cheaper elsewhere and would like us to see if we can beat it? Send us the details below and we'll come back to you quickly (usually within 24hrs, sooner during opening hours)


Warranty length 2 Years
Brand Pro-Ject

Tech Specs

- Power output: 2x 150W / 80W at 4/8 ohms (1%THD)
- Frequency response (20Hz-20kHz): -0,1dB to +0,3dB
- SNR: >98dB (105 dB - 'A‘ weighted) at 1kHz
- Channel separation: -73dB at 10kHz
- THD: < 0,01% at 10W
- Phono input gain: MM 40dB / MC 60dB
- Phono input impedance: MM 47k ohms / MC 100 ohms
- Line level inputs: 3 pair RCA (sensitivity: 860 mV)
- Line input impedance: 50 k ohms
- BLUETOOTH®: V5.0, aptX, aptX HD, A2DP profile
- Variable/Fix line output: 1 pair RCA / 1 pair RCA
- Speakers output: 4mm banana plugs, spades connectors or naked wire
- Power supply: 36V/5,5A DC 100 - 240V, 50/60Hz
- Power consumption in standby: <0.5W
- Battery remote control: 2x AAA 1,5V
- Dimensions W x H x D: 206 x 71 x 211 (223)mm
- Weight: 1800g without power supply

Product Description

Pro-Ject Stereo Box DS3 integrated amplifier is a compact design with useful features. There is a built in MM or MC phono stage as well as three line level inputs and built in HD Bluetooth to stream music, podcasts and audio books from your smartphone or any other bluetooth device. 

This model features a powerful 150 watts per channel amplifier, housed in a beautiful solid aluminium case. The DS3 is available in classic silver or black. There is also a trigger input that can automatically turn on other suitably equipped devices.

Good connectivity

The DS3 features a 6.3mm headphone socket on the front of the case as well as 4mm banana plug terminals for the speakers. Moreover, there is a variable RCA output, that makes it easier to connect a subwoofer (the variable output will track with the volume control so that the subwoofer volume stays in sync) There are also three analogue inputs.

Analogue volume control

The volume control is motor driven. This is used instead of reducing the audio quality, by sending it through an electronic volume control. A remote control is supplied that will also switch the inputs.

Case design

The Stereo box DS3 is designed and handmade in Europe. The small form factor saves materials and is only as big as necessary. The classic design is built using the best materials including a rigid aluminium case and the best audio grade components.

Efficient class D amplifier

Due to it’s compact size and high output power the DS3 uses a dual mono, class D amplifier. Unlike linear amplifiers, Class D amplifiers are up to 90% efficient and generate much less heat. Linear amplifiers are usually built using bipolar transistors, in a Class B or Class A/B configuration, this means that they always have a small bias current flowing. On the other hand Class D amplifiers use MOSFET transistors, that can switch at a high frequency. That is because, with Class D, the audio signal is modulated onto a high frequency carrier. This is filtered out at the output, to recover the audio signal.

Moving magnet and moving coil phono cartridges

There are two main types of phono cartridges available - moving magnet (MM) and moving coil (MC). The DS3 has a switchable input so that either can be used. This is needed because the output voltage for moving coil cartridges is much lower than moving magnet cartridges. Sometimes just fractions of a millivolt. 

The DS3 MC input has an impedance of 100 R and a gain of 60dB, while the moving magnet input has an input impedance of 47K with a gain of 40dB. These values have to be correct to get the most out of the cartridge.

Bluetooth codecs

Finally, The DS3 also has HD Bluetooth capability. Bluetooth is not known for great audio quality, however, now there is aptX HD. This is a Bluetooth format that can send high quality 24-bit files. It also features a better signal-to-noise ratio, reducing distortion. The original aptX and aptX HD both use 4-1 compression however the original has a “CD like” 16-bit / 44.1 kHz signal, with a bit rate of 352kbs. While the HD version has a 24-bit / 38kHz signal and a bitrate of 576kbs.

About Pro-Ject

Pro-ject was founded in 1991 when CD was king. However, their focus from the beginning has been to provide the best analogue experience at an affordable price. The Pro-Ject 1 was the first turntable and it rapidly became a classic. Today Pro-ject sell to more than 80 countries. All the turntables are built from scratch, using cutting edge technologies. Moreover, they also make amplifiers with a leaning towards vinyl.

Write Your Own Review

Write a Review

  • 1 star 2 stars 3 stars 4 stars 5 stars
    1 Star 2 Star 3 Star 4 Star 5 Star


Contact Details

Customer Services Landline
0121 224 7350/7351

Sales Landline
0121 224 7300/7401

Sales WhatsApp
07706 203859

As Featured/Seen In

The Telegraph
Gadget Show
BBC Midlands Today
Birmingham Mail
Hi-Fi Choice Magazine

Mobile Site

Copyright © Audio Affair (Alexander Michael LTD) 2006-2024. Vat No. 913183835. All rights reserved.