Sony CFD-S70 Boombox Review

Sony CFD-S70 Boombox Review

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The Sony CFD-S70 Boombox is an old-school portable CD and cassette player with an AM/FM radio. It could be a good choice if you still have a large collection of cassettes. Let’s take a closer look…


  • AM/FM radio
  • Saves up to 30 preset radio stations
  • 2 x 1.7 W speakers offering stereo sound
  • Mega Bass function for extra bass
  • Line-in port for connecting an MP3 player or other device
  • Cassette deck with a record function
  • CD player that plays regular CDs, CD-R/RWs and MP3 CDs
  • CD player is programmable and has shuffle and sleep timer functions
  • Headphone jack
  • Mains-powered or portable using 6 x C (R14) batteries
  • Telescopic radio aerial

Dimensions: 31 cm wide x 14 cm high 21.2 cm deep
Weight: 2 kg
Model number: CFDS70B.CEK

Performance and use

CD player

The Sony CFD-S70 Boombox has a top-loading CD player that can play regular CDs or CD-RWs and MP3 CDs. This means you could burn hundreds of songs to a single disc as MP3s and play them on the CD player.

One good thing about the CD player is that it offers gapless playback. This means there isn’t any pause between tracks, so if you’re listening to a recording of a live concert or other CD where the tracks run into one another, you won’t notice it.

The CD player also remembers the track you were listening to when you switched it off and will let you resume playing from that point.

Cassette player

Depending on your age, the cassette player could either be the main reason why you’re interested in this product, or it might be completely irrelevant to you. If you have a large collection of tapes collecting dust, the Sony CFD-S70 Boombox will let you rediscover them. You can also use it to record from the CD player or the radio, though the recording quality isn’t especially clear.

It’s important to note that the product doesn’t contain a built-in microphone, so you can’t use this cassette player to record yourself. Some people buy the Sony CFD-S70 Boombox with the intention of recording themselves practicing an instrument, and only later realise that this isn’t possible.

Ease of use

The Sony CFD-S70 Boombox is generally easy to use, and comes with a clear and straightforward user manual. Most of the controls are obvious, so you will probably only need the manual for things like programming CDs and saving presets. These functions are intuitive too, unlike on many other machines where they are unnecessarily complicated.

Sound quality

This is a small and inexpensive radio, so you wouldn’t expect it to sound amazing. The Sony CFD-S70 Boombox sounds decent for speech and pop music, but isn’t great for genres such as classical music where you want to be able to hear finer details.


  • Easy to use
  • Decent sound quality for the price
  • Feels sturdy and well made
  • Good range of features for the price (AM/FM radio, cassette player, CD player)
  • Good amount of volume, enough for using for things like dance/aerobics classes in relatively small halls
  • CD player plays MP3 CDs
  • Small and light
  • Attractive design


  • No aux-in connection
  • Several buyers found that either the CD player or cassette player stopped working after a few months, suggesting issues with reliability.
  • Can sound quite tinny


The Sony CFD-S70 Boombox offers very good value for money. It’s not perfect when it comes to sound quality or reliability, but in terms of overall features and performance for the price, it’s a good buy. It’s one of the most popular CD/tape players in the UK at the moment, and with good reason.

This product’s main flaws are its somewhat tinny sound and issues concerning the reliability of the CD player. If you need excellent sound quality and a more reliable CD player, you should consider choosing a different model.

Alternative CD player radios

One similar product is the Roberts CD9959 Swallow. It offers an LW/MW/FM radio and a CD player, but not a cassette player. It could be a good inexpensive alternative if you don’t need a tape player.

A higher quality alternative is the Roberts ZoomBox2, which arguably has better sound quality than the Sony CFD-S70 Boombox and also offers DAB radio and a USB port for playing MP3s, though again it doesn’t feature a cassette player.

You can also check out our roundup of the best radio CD players.

3 thoughts on “Sony CFD-S70 Boombox Review”

  1. Found the instructions for MP3 discs VERY difficult to interpret. Have almost given up trying. Very disappointing from a well known name and supposedly quality product.

  2. A. D. Bickerstaffe

    I got this because my old unit was very crackly on AM radio. Compared to the sound of my old unit (when it worked properly) this is very muffled and poor, like it was stuck in a cupboard or something. The instructions for the radio presets were utterly incomprehensible and I gave up trying. This means having to tune in to the channel each time. I should note that the sound quality is equally poor on CD, FM etc. – the problem largely being the speakers.
    VERY disappointed. 3 out of 10. You can get better than this for £20.

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