An integrated amplifier combines the preamplifier and the power amplifier stage in a single box, making it the simplest, most compact and most affordable solution for most home systems. A separate preamplifier plus power amplifier splits those two functions into two distinct units, which brings more flexibility, better isolation between stages and the potential for higher sound quality, but demands more space, more cabling and a larger investment. The right choice depends on your budget, the space you have available and how much you want to grow the system over the years.
What does each one actually do?
In an integrated amplifier, the preamplifier (which selects the source and controls volume) and the power amp (which amplifies the signal to drive the speakers) share the same chassis, the same power supply and, often, the same transformer. It is a design built for simplicity: one mains lead, one remote and one set of speaker connections.
Integrated amplifier: simplicity and coherence
Since the whole circuit was engineered together by the manufacturer, a good integrated amp tends to sound very coherent and balanced, without the compromises of mixing different brands or generations. It is also the most practical option: fewer boxes, fewer interconnect cables and fewer mains connections.
Preamp + power amp: more control, more headroom
Separating the two functions allows each stage to have its own dedicated power supply, reducing interference between the low-voltage stage (the preamp) and the high-current stage (the power amp). It also opens the door to step-by-step upgrades: you can swap the power amp later, or even move to monoblocks (one power amp dedicated to each speaker), without touching the rest of the system.
When does an integrated amp make sense?
- A system for a living room, with no major plans to expand later
- A tighter budget or limited space on the equipment rack
- A preference for simplicity: one box, one remote, few cables
- You already know the speakers will stay connected to the system for years
When does it make sense to go separate?
- Reference-level systems, where every decibel of background silence counts
- Wanting to grow the system in stages, without replacing everything at once
- Demanding speakers that benefit from more current and damping control
- A taste for mixing brands and fine-tuning the sound with specific choices at each stage
Quick comparison
| Criteria | Integrated | Pre + power |
|---|---|---|
| Space needed | Smaller (1 box) | Larger (2 boxes or more) |
| Typical cost | More contained | Higher |
| Ease of setup | Very simple | More cables and connections |
| Upgrade potential | Limited | High, step by step |
Our recommended integrated amplifiers
For those seeking simplicity without giving up quality, we carry several options in store. The Arcam A5+ (890 €) is an honest, musical entry point. A step up, the Arcam A25+ (1990 €) delivers more control and dynamics. The Heed Elixir (1590 €) is known for its tonal lightness, while the Heed Obelisk Integrated (2490 €) raises the level of refinement. For those who want to experience the character of valves, the Aurorasound HFSA-01 (4890 €) is an EL84 valve integrated amp with 14W, ideal for high-sensitivity speakers.
Our recommended separates
For top-tier systems, we suggest pairing the Aurorasound PREDA III preamplifier (13 500 €) with a power amp such as the EAM Lab Classic 102 (2800 €), or stepping up further with Aurorasound PADA-300B monoblocks, a dedicated per-channel solution for those seeking maximum control over their speakers.
Frequently asked questions
Does an integrated amplifier sound worse than separate pre + power amps?
Not necessarily. A good, well-built integrated amp can outperform a poorly matched pre + power combination. Separation only brings a real advantage when both units are high quality and well matched to each other.
Can I start with an integrated amp and move to separates later?
Yes, this is a common upgrade path. Many systems start with a good integrated amp and, later on, the owner decides to split the functions to gain more control and dynamics, keeping the same speakers and sources.
Do separates always need more space?
Usually yes, since it is two boxes instead of one, plus interconnect cables between preamp and power amp. It is worth checking the space available on your rack before choosing this route.
Before deciding, it is worth understanding what it costs, overall, to put together a balanced hi-fi system: check out our guide on how much a hi-fi system costs and our guide to choosing your system. And, as always, the best advice is to listen before you buy: come to the store and try the options with your own speakers and music.