Updated November 2026 by the Nottingham HiFi team.
A well set-up hi-fi system makes music sound bigger, clearer and more real than any smart speaker. The good news is that you don't need to be an expert to get it right. This step-by-step guide shows you how to choose the parts, where to put them, how to connect everything and how to fine-tune the sound, so you get the most from every pound you spend.
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What is a hi-fi system?
A hi-fi (high-fidelity) system is a set of audio components designed to reproduce music as accurately as possible, close to how it sounded in the studio. A typical system has three parts:
- A source that plays the music, such as a turntable, CD player or streamer.
- An amplifier that boosts the signal.
- A pair of speakers (or headphones) that turn it into sound.
Because each part is chosen separately, you can match them to your room and taste, and upgrade one piece at a time.
Step 1 – Choose the components
Source
Pick the source that suits how you listen: a turntable for vinyl, a network streamer for Spotify, Tidal or Qobuz, or a CD player for your disc collection. Many people start with one and add another later.
Amplifier
The amplifier powers your speakers. An integrated amplifier combines the preamp and power amp in one box and is the simplest choice for most systems. Many now include streaming, Bluetooth and a phono stage for a turntable. Separate pre and power amps offer more flexibility for serious upgrades later.
Speakers
Bookshelf speakers suit small and medium rooms and work best on stands. Floorstanding speakers give deeper bass and fill larger rooms. Match the speakers to the size of your room, not just your budget.
Cables and accessories
Good speaker cables and interconnects keep the signal clean. Speaker stands and isolation feet often make a bigger difference than people expect.
Step 2 – Plan your space
- Room size: larger rooms suit floorstanders, while compact rooms suit bookshelf speakers.
- Surfaces: bare walls, glass and hard floors reflect sound and can make it harsh. Rugs, curtains and soft furnishings help.
- Listening position: plan a clear spot for your chair, ideally forming a triangle with the speakers.
- Power and ventilation: make sure there are enough sockets and space around the amplifier for air to flow.
Step 3 – Position your speakers and equipment
Placement can transform the sound of even a modest system, and it costs nothing.
Speaker positioning
Raise the speakers so the tweeters are roughly at ear height when you're seated. Start with them 30–50cm from the back and side walls to reduce boomy bass. Keep both speakers the same distance from your seat, and try angling them slightly towards you for sharper stereo imaging.
The listening triangle
Sit so that you and the two speakers form an equilateral triangle: the distance between the speakers should match the distance from each speaker to your ears.
Control vibration
Put speakers on solid stands or isolation pads, keep electronics on a stable rack, avoid stacking components, and keep turntables away from the speakers to prevent feedback.
Step 4 – Connect and power your system
Source to amplifier
Connect each source to the amplifier with a good-quality interconnect that matches its output, usually RCA. Some higher-end kit uses balanced XLR. See our RCA or XLR guide if you're not sure which to use.
Amplifier to speakers
Connect positive (+) to positive and negative (–) to negative at both ends. Getting this wrong puts the speakers out of phase and makes the bass sound thin. Use thicker cable for longer runs, and banana plugs or spades for a secure, tidy connection.
Power
Use the supplied mains leads or upgraded power cables, keep power leads away from signal cables, and use a surge-protected extension rather than cheap multi-way adaptors. A power conditioner such as Puritan Audio Labs can reduce mains noise from fridges, routers and other appliances.
Step 5 – Test and fine-tune
Play a few well-recorded tracks you know well. Listen for a clear central vocal, even balance between left and right, and tight bass. If the sound is thin, move the speakers a little closer to the wall. If bass is boomy, move them further out. Small moves of a few centimetres can make a real difference. Then settle in and enjoy it.
Step 6 – Look after your system
- Dust regularly with a dry microfibre cloth.
- Check connections now and then to make sure cables are secure and undamaged.
- Protect against power surges with surge protection or a power conditioner.
- Avoid heat and damp: keep the system out of direct sunlight and away from radiators.
- Update firmware on streamers and streaming amplifiers.
Want it simpler? Try an all-in-one hi-fi system
If you'd rather have fewer boxes, an all-in-one system combines the source and amplifier in one unit. Just add speakers. The Technics SA-C600, for example, is a CD player, amplifier and network streamer in one, with an input for a turntable. Pair it with a set of bookshelf speakers for a complete system with one remote.
Frequently asked questions
What is a hi-fi system and how does it work?
A hi-fi system is a set of separate audio components (a source, an amplifier and speakers) designed to reproduce music as accurately as possible. The source plays the music, the amplifier boosts the signal and the speakers turn it into sound.
What do I need to set up a basic hi-fi system?
A source (turntable, CD player or streamer), an amplifier, a pair of speakers and speaker cable. Stands are recommended for bookshelf speakers.
How important is speaker placement?
Very. Good placement improves bass, clarity and stereo imaging, often more than an expensive upgrade would.
Can I connect a hi-fi system to my TV or computer?
Yes. Many modern amplifiers have optical, USB or HDMI ARC inputs, so you can play TV and computer audio through your hi-fi.
Where can I get help setting up a hi-fi system in Nottingham?
Visit Nottingham HiFi at Unit 8, Dillion Court, Gamble Street, Nottingham NG7 4EX. We'll help you choose a matched system and show you how to get the best from it.