"I need an AV receiver." When you say this sentence, the real work only just begins – because there's a world of difference between a compact 5.1 device for the living room and an AV processor with multiple multi-channel power amplifiers for a dedicated cinema room.

This guide sorts out the purchasing decision. It consciously focuses on the device – which channels, which connections, which formats, how much calibration, how future-proof. The question of which setup and how many speakers fit into your room at all, and their placement, is covered in more detail elsewhere; we link to those sections at the appropriate points. By the end, you'll know which class of device is right for you – and then you can calmly tackle the enjoyable question, "Which one sounds best?"

Table of Contents

The Most Important Rule: Channels Now, Not Later

If you take only one sentence from this guide, let it be this: Plan for the expansion stage you'll need in three years – not the one you're building today.

The reason lies in the design. An AV receiver is, in simple terms, made up of two parts: the processor, which separates the audio into individual channels, and the power amplifiers, which amplify these channels. Both are permanently installed. If you're building a 5.1 system today but want to upgrade to Dolby Atmos with height speakers in two years, you'll need the corresponding number of channels in the device now – otherwise, only replacing the entire receiver will help. A device with a bit more reserve costs a little more today and saves you from a double purchase later.

The same applies to connections and formats. For everything else, remember a simple rule of thumb that runs throughout this guide: Inputs can almost always be added externally later – channels, outputs, and audio formats cannot. This is where foresight pays off.

Our overarching guide clarifies which setup and how many speakers fit into your room at all: Home Cinema Buying Guide: Which Setup Suits My Room?

What Do You Use It For? TV, Cinema, Gaming, Music

Before you look at data sheets, answer one question: What will you mainly use it for? The answer significantly shifts priorities.

  • Mainly improving TV sound. Then a comfortable TV connection (HDMI eARC, more on that in a moment) and a solid basic setup are what matter. Not much more is needed initially.
  • Proper home cinema. Now, the number of channels, audio formats, and calibration become the decisive criteria – the core of this guide.
  • Gaming. Here, video pass-through is crucial: The receiver sits between the console and the screen and must not become a bottleneck. Sufficient HDMI bandwidth and the pass-through of features like high frame rates and variable refresh rate (VRR) are important. What matters for the picture itself is explained here: Projector, Laser TV, or Television?
  • Also serious music listening. Then you should decide early on whether the AVR should handle this alone or if a stereo amplifier will be added – see section Just Cinema or HiFi Too?

In practice, it's often a mix. That's precisely why it's worth honestly defining your priorities: They determine where you invest and where you can save.

How Many Channels and Which Audio Formats?

Understanding the Numbers: 5.1, 7.1, 7.1.4

The designations seem cryptic but follow a simple scheme. The first number stands for the speakers at ear height (front, center, surrounds), the second for the subwoofer channel (LFE), the third for the height speakers.

  • 5.1 – five speakers plus subwoofer. The foundation and for most living rooms the most sensible stage.
  • 7.1 – additionally two rear speakers for a more uniform sound field.
  • 5.1.2 / 7.1.4 – the third digit introduces the height layer (Dolby Atmos, DTS:X): two or four height speakers.

Processing and Power Amplifiers Are Not the Same Thing

A misunderstanding that regularly causes confusion for us and that you should be aware of when reading data sheets: Channel processing and built-in power amplifiers are two different things. For example, a device can process eleven channels (processing) but only amplify nine of them itself. This means: You can prepare a full 7.1.4 signal, but you'll need an additional power amplifier for the last two channels – or you start with a smaller setup and upgrade later.

For you, this means when buying: Pay attention not only to the processed channels but also to the number of built-in power amplifiers. If you want to power all speakers from the receiver immediately, you need enough of them. If you want to keep the option for expansion open, also look for pre-out outputs – more on that below.

Which Audio Formats Does the Device Need?

For formats, the same logic applies as for channels: Secure what you want to use now. The basis is Dolby and DTS – practically every device supports them. For the height layer, you'll need Dolby Atmos and DTS:X; if you want a third dimension of sound, you should pay attention to these. Important to know: On some devices, 3D formats are only available from a certain expansion stage – so a detailed look is worthwhile.

Formats like Auro-3D or particularly large DTS:X expansions are more for ambitious, large setups and dispensable for most living rooms. And an honest note: The numerous sound programs that many devices offer (to make older stereo soundtracks sound more spacious, for example) are a nice playground – but in the end, most people stick to one or two settings they like. They are rarely a reason to buy in themselves.

HDMI: Inputs, eARC, 4K/8K

HDMI is the central interface in home cinema – where picture and sound come together. Three points determine satisfaction or annoyance.

Enough Inputs – with Reserve

Count your sources: Blu-ray player, streaming box, console, maybe a second player. And then plan for one more input than you need today. Having too few HDMI inputs is one of the most common annoyances – and one that can only be solved awkwardly with additional switches.

A special case that many overlook: If you use a projector, you should also pay attention to the HDMI outputs. Some devices offer multiple outputs, for example, to drive a television and a projector simultaneously – this is not a given.

eARC: The Convenient Way from the TV

HDMI eARC (the improved version of ARC, the Audio Return Channel) sends the sound from the TV back to the receiver – via the same cable that the receiver uses to deliver the picture. The benefit: You control the volume with the TV remote, and often the receiver switches on automatically. eARC also transmits high-quality audio formats, including Atmos, which older ARC versions could not. If TV sound is a regular topic for you, this is a very useful feature.

4K, 8K, and HDMI 2.1 – Realistically Assessed

4K pass-through is standard today and should be a given. For 8K and the HDMI 2.1 standard, a sober look is worthwhile: For pure movie watching, 8K currently plays hardly any role because there is almost no content for it. HDMI 2.1 becomes relevant primarily for gaming – for high frame rates and variable refresh rates from current consoles. If you're a serious gamer, you should ensure that the corresponding HDMI inputs also pass through these signals. If you're using the receiver purely for cinema, you don't need to be driven by this.

For the right cable: Digital Cables

Streaming, Multiroom, and Smart Home

Modern AV receivers are no longer just central hubs for movie sound. You should clarify three network-related topics for yourself.

Streaming. Many devices come with network streaming and an app – Spotify, Tidal, Qobuz, internet radio, your own library. This is convenient and perfectly adequate for most. If you want the maximum in sound quality, you can alternatively connect a separate streamer that can be swapped out in a few years without having to replace the receiver. What exactly streaming means and what matters for resolution and services: Understanding Music Streaming · Streamers

Multiroom. If your home cinema is to be part of a larger system – music in the kitchen, bathroom, on the terrace – then pay attention to the built-in ecosystem. Many manufacturers rely on their own multiroom system that connects the receiver with suitable speakers throughout the house. Our overview clarifies which system suits you: Multiroom Systems Overview · Multiroom

Smart Home and Control. If the receiver is to be integrated into a home automation system like KNX, Loxone, or Control4, network control is crucial. Sophisticated devices can be addressed via IP and offer either an open interface or a ready-made integration module (driver) for the respective system – this allows you to centrally control source, volume, and zones, and the receiver also reports its status back to the system. Therefore, check if there is a suitable connection for your control system; this is by no means standard for every device. For simpler tasks – such as automatically switching on a power amplifier or a motorized screen – simpler trigger outputs are sufficient. Especially for larger installations, it's worth considering integration early on.

Just Cinema – or HiFi Too?

An AV receiver is often found in the living room – and there, it's often expected to deliver not only movie sound but also music. This is possible and works well, but deserves careful consideration.

For many, the receiver's pure stereo operation is completely sufficient. However, if you want more from your music listening, there's an elegant way: running the front speakers through a separate stereo integrated amplifier or a power amplifier. For this, the receiver needs pre-outs (preamplifier outputs) for the front channels. Many modern devices allow the internal amplifier for the front to be specifically switched off, so the receiver only acts as a preamplifier there and leaves the amplification to a higher-quality device. The clever part is that you can use the same amplifier – for example, with your turntable connected to it – for pure stereo enjoyment and integrate it into your home cinema setup at the same time.

This is one of the reasons why looking at the pre-outs when buying is worthwhile: they are the door to future upgrades, cost little extra today, and are difficult to retrofit later. Our general amplifier buying guide delves into how to sensibly combine stereo and home cinema · Integrated Amplifiers · Power Amplifiers

We show you how to connect an amplifier or power amplifier to an AV receiver, configure it correctly, and what's behind it in this video – from cabling to settings to the theory behind it. Feel free to watch:

A Look at the Back: Connections, Subwoofers, Active Speakers

The back of an AV receiver determines your long-term satisfaction more than any glossy front. Go through it calmly – ideally with your device list in hand.

The Important Connections

  • Pre-Outs. Preamplifier outputs to which you connect additional power amplifiers – for the front (see above) or for later expansion to more channels. The central expansion option.
  • Subwoofer Outputs. Check how many there are and whether they can be controlled separately – more on that in a moment.
  • Phono Input. For the turntable. Not every receiver has one; if it does, it's usually an MM (Moving Magnet) input. If you use an MC system, you need an amplifier or an external phono preamplifier that supports MC.
  • Analog and Digital Inputs. RCA, optical, coaxial – for sources not running via HDMI.
  • Trigger Outputs. For automatic switching of power amplifiers, screens, or home automation systems.

And once again the rule of thumb, because it's most important here: Missing inputs can almost always be added externally. Missing outputs – pre-out, sub-out – cannot be retrofitted into the device.

Subwoofers: One, Two, or More

How many subwoofers the receiver can control is an underestimated buying criterion. Two subwoofers are not twice as loud – they distribute bass more evenly across seating positions and smooth out typical room modes, where it booms in one spot and is almost inaudible a meter away.

The difference between device classes lies in the details: Simpler devices often have two sub outputs but output the same signal through them. Only higher-quality devices can calibrate multiple subwoofers separately and adjust them individually – a real advantage if you operate two or more subs. Another point that particularly renters' home cinemas appreciate: Some devices allow a tactile transducer (bodyshaker under the couch) to be connected to a sub output instead of a subwoofer and to adjust it separately – for palpable deep bass without disturbing the neighbors.

One more note: Some subwoofers are passive and require their own power amplifier. You should consider this in your planning. Everything about selecting, setting up, and calibrating subwoofers is here: Choosing and Setting Up a Subwoofer Correctly · Subwoofers

Passive or Active Speakers?

Most home cinema sets consist of passive speakers that the receiver amplifies. However, there's another way: Active speakers come with their own amplification and are controlled via the pre-outs – they are often additionally DSP-controlled and can be very precisely adapted to the room. This is particularly interesting for demanding front channels or invisibly installed setups. Hybrid forms are also possible, such as active front channels and passive surrounds. The important thing is that the receiver has the necessary pre-outs. For comparison: classic floor-standing speakers.

Calibration: How Much Automation, How Much Freedom?

Every room sounds different. A calibration system adapts the sound to your specific room – making it one of the most important features of all. The only question is how deeply you want to delve into it.

  • Purely Automatic. Set up the microphone, run test tones, done. This already leads to a good result and is perfect for beginners – you are usually guided step-by-step through the process.
  • Semi-Manual. The automatic system lays the foundation, then you make targeted adjustments – for example, using a graphical equalizer to correct individual peaks.
  • Fully Manual. For those who want to squeeze out the last few percent: parametric equalizers per speaker, sometimes even via a browser interface instead of the on-screen menu. You can get lost here – you should know what you're doing.

An important principle, no matter how deeply you go: First set up correctly, then calibrate. A calibration system corrects many things, but it cannot fix incorrect placement. And if it intervenes too strongly, it robs the sound of its liveliness. How to optimally position speakers: Setting Up Speakers Correctly

Calibration at home or via remote diagnostics. You don't want to do this yourself – or want to get the last ounce of performance? We'll take care of the calibration at your location. And if you prefer to do it yourself, it's even possible remotely: All you need is a microphone, make a few recordings, and send them to us. We'll then tell you exactly what settings you need to make on your receiver. For this to work, you let us know what system you have beforehand; then you'll receive an understandable step-by-step list. Simply inquire about this via our contact form.

The Classes: from small 5.1 to AV processor

AV devices come in very different classes – and which one suits you depends on how big and ambitious your cinema is going to be. A rough upgrade path:

  1. Compact 5.1 AV receiver. The entry into true multi-channel home cinema. Perfectly sufficient for a classic living room cinema if the features match your sources.
  2. Large AV receiver. More channels, more power amplifiers, more reserve, often separate subwoofer calibration and higher quality construction. For ambitious living rooms and smaller dedicated rooms.
  3. Pre/power amplifier combination. The preamplifier handles processing and calibration, a separate multi-channel power amplifier handles amplification. More effort and space required, but significantly more power reserve and flexibility.
  4. AV processor with multiple power amplifiers. The high-end league for the dedicated cinema room: a pure processor, plus one or more multi-channel power amplifiers, additional power amplifiers for passive subwoofers if needed. Here you uncompromisingly get everything out of it – and sometimes find calibration systems that detect the room fundamentally differently than conventional automatic systems.

Performance: Reserve instead of Volume

The biggest misunderstanding circulates around performance. You don't need performance to listen loudly constantly, but as a reserve – so that the receiver doesn't lose composure during impulses (explosion, orchestral entry, bass attack on all channels simultaneously). A device that constantly operates at its limit sounds strained and loses control in the bass.

A good indicator of true reserve is – in addition to the pure data sheet values – the construction: a powerful power supply and a solid, torsion-resistant construction often deliver more than any advertised number. It's not without reason that devices of the same series sometimes differ primarily in terms of power supply and weight. Large, inefficient speakers in a large room demand significantly more reserve than compact, efficient speakers in a small living room. More on the interaction of amplifier and speaker: Amplifier Buying Guide

Future-proofing and Workmanship

Two things contribute to longevity. First, the workmanship – a sturdy construction is not just about aesthetics, but reduces resonances and stands for quality inside. Second, upgradability: Some manufacturers offer software updates and even hardware extensions for their higher-end devices, so that a device doesn't immediately become obsolete with new connection standards. Especially in the upper class, this is an argument that can justify the higher price over the years.

To the assortment: AV Receivers · AV Preamplifiers · Multi-channel Power Amplifiers

Typical Errors and Misbuys

Bought too few channels or power amplifiers. The most common and annoying mistake. Anyone building 5.1 today but wanting Atmos in two years will face a complete replacement without the necessary channels. Better to plan a bit more generously now.

Bought an AV receiver for pure stereo music. Anyone only using two speakers and not needing multi-channel sound is paying for channels, video processing, and formats they'll never use in an AVR. The same money would have gone into sound quality in a stereo amplifier.

Too few HDMI inputs. Only noticeable when the fourth source no longer finds a place. Always plan for one reserve input.

Forgot the outputs for the projector. If you want to operate a TV and a projector in parallel, you need the appropriate HDMI outputs – not every device offers several.

Only looked at numbers. Pure power specifications say little without room size, efficiency, and impedance of the speakers. The interaction is crucial.

Blindly relied on calibration. It corrects many things, but not incorrect placement. First set up, then calibrate.

Bought features that are never used. Twenty sound programs and formats feel good when buying – in everyday life, the functions you really need count.

Decision-making aid: What suits whom

You primarily want better TV sound and a solid living room cinema. → Compact 5.1 AV receiver with HDMI eARC and a solid automatic calibration system. Pay attention to enough HDMI inputs for your sources.

You want an ambitious living room cinema with a height layer. → Larger AV receiver with enough channels and power amplifiers for Atmos/DTS:X, ideally with pre-outs for later expansion.

Cinema is important to you, but also really good stereo sound. → AV receiver with pre-outs, combined with a stereo integrated amplifier or a power amplifier for the front. One device, two worlds.

You are planning a dedicated high-end cinema room. → Pre/power amplifier combination or an AV processor with multiple multi-channel power amplifiers. Here, every thought about reserve, calibration, and future-proofing pays off.

You're a serious gamer. → Pay attention to HDMI 2.1 passthrough with high frame rates and VRR on enough inputs, so the receiver doesn't become a bottleneck.

Frequently Asked Questions

Is a 5.1 AV receiver sufficient, or should I buy an Atmos-capable one right away?

A 5.1 device is perfectly sufficient for a very good home cinema. However, if you see the height layer (Dolby Atmos, DTS:X) as even a later option, buy a device with enough channels right away – because channels cannot be retrofitted later and would mean a complete replacement. The height speakers themselves, however, can be added at any time.

What do numbers like 7.2.4 mean for an AV receiver?

The first number stands for the speakers at ear level (here seven: front, center, surrounds), the second for the subwoofer channel, the third for the height speakers (here four). So, 5.1 means five speakers plus a subwoofer, 7.1.4 means a fully expanded setup with four height speakers. A note on notation: You often see "7.2.4" on data sheets. This refers to two subwoofer outputs on the device – in the sound format itself, there is only one subwoofer channel. How useful two subwoofers are and what matters in this regard is discussed further up in the subwoofer section.

Which audio formats does an AV receiver need – and which ones do I really need?

Dolby and DTS are standard equipment and practically always present. For a spatial height layer, you also need Dolby Atmos and DTS:X – you should ensure these if you are planning height speakers. Formats like Auro-3D or particularly extensive DTS:X configurations are more for ambitious, large setups and dispensable for most living rooms.

How many HDMI inputs do I need on an AV receiver?

Count your sources (Blu-ray player, streaming box, console, and similar) and plan for at least one more input. Too few HDMI inputs are a common annoyance that can only be solved inconveniently with additional switchers. If you use a projector, you should also pay attention to multiple HDMI outputs.

What is HDMI eARC and why do I need it?

HDMI eARC sends the sound from the TV back to the receiver via the same HDMI cable. The advantage: you control the volume with the TV remote, and high-quality audio formats, including Dolby Atmos, are also transmitted. If you regularly listen to TV sound through your system, eARC is the most convenient feature for this.

Can I also use an AV receiver for good stereo/music?

Yes. For many, the stereo operation of the receiver is completely sufficient. If you want more when listening to music, you can connect the front speakers to a separate stereo amplifier or a power amplifier via the pre-outs – the receiver then only acts as a preamplifier for the front. So, pay attention to pre-outs if this dual use is a topic for you.

Can I integrate my existing stereo amplifier into a home cinema?

In many cases, yes. Many AV receivers allow you to switch off the internal power amplifier for the front channels and pass them to a stereo integrated amplifier via the pre-outs. This way, you use the same amplifier – for example, with your turntable – for pure stereo enjoyment and at the same time integrate it into the home cinema operation. The prerequisite is that the receiver and amplifier have the appropriate connections.

Can I connect a turntable to an AV receiver?

Yes, if the receiver has a phono input – this is usually an MM (Moving Magnet) input. If it doesn't, you can connect a turntable with a built-in phono preamplifier to a normal input or connect an external phono preamplifier in between. For an MC (Moving Coil) system, you need an input or a preamplifier that explicitly supports MC.

Is automatic calibration sufficient, or is more effort worthwhile?

For most, automatic calibration is sufficient and already delivers a good result. If you want more, you can manually readjust many devices – up to parametric equalizers per speaker. More important than any fine-tuning, however, is the order: first set up the speakers correctly, then calibrate. No calibration can repair incorrect placement.

AV receiver, pre/power amplifier combination or AV processor – what's better?

That depends on your demands, room, and budget. An AV receiver combines everything in one device and is the right choice for most living rooms. A pre/power amplifier combination offers more power reserve and flexibility. An AV processor with separate multi-channel power amplifiers is the high-end solution for a dedicated cinema room when sound quality and expandability are paramount.

How much do I have to spend on a good AV receiver?

A solid entry-level AV receiver for a living room cinema starts in the low three-digit to four-digit range, a large, well-equipped device is significantly higher, and pre/power amplifier or processor solutions are in a different league altogether. The decisive factor is less the pure price than whether the device has the channels, connections, and formats you need today and in a few years. That's where it's worth planning a bit more generously rather than too narrowly.

Next steps

If you've read this far, you probably already know which direction you want to go – a compact 5.1 receiver, a large powerhouse for the living room, or even a processor solution for your own room. We'll be happy to discuss the rest with you.

We plan and build everything – from classic living room cinema to invisibly installed systems and high-end cinema rooms with AV processors and multiple power amplifiers. Tell us about your room, your sources, and what you have in mind, and we'll tailor the right solution – with us, you can hear and see it beforehand.

View consultation & installation →
Request calibration or contact us →

Directly to the assortment: AV Receivers · AV Preamplifiers · Multi-channel Power Amplifiers · Home Cinema Speaker Sets · Subwoofers

Author: Mark Last

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