An integrated amp combines a preamp and a power amp in one box, and for most people building a system from scratch, it's the right place to start — one box instead of two, one thing to pair with speakers, and usually the best value per dollar in the signal chain.
Power: match it to your room and speakers, not the spec sheet
Watts-per-channel numbers get treated like a scoreboard, but the number that actually matters is whether the amp can drive your specific speakers in your specific room. Two things decide that:
- Speaker sensitivity (measured in dB) — a speaker rated 90 dB needs roughly double the power of one rated 93 dB to reach the same volume. Low-sensitivity speakers (below ~87 dB) want a higher-power amp; high-sensitivity speakers (90 dB+) can sound excellent on a modest 30-50 watt amp.
- Speaker impedance (measured in ohms, usually 4 or 8) — check that the amp is rated to drive your speakers' impedance. Most amps handle 8-ohm speakers comfortably; 4-ohm speakers draw more current and not every amp is built for them.
As a rough starting point for a normal living room (not a dedicated listening room, not a studio), 40-100 watts per channel covers the large majority of speaker pairings. Bigger rooms, lower-sensitivity speakers, or a preference for playing loud push that number up.
Tube vs. solid-state
Solid-state (transistor) amps are the default for a reason: more power per dollar, less heat, no tubes to eventually replace, and a neutral, accurate sound that doesn't editorialize. Tube amps trade some of that efficiency for a different characteristic — many listeners describe it as warmer or more three-dimensional, particularly on vocals and acoustic instruments — at the cost of less power per dollar, more heat, and tubes that need replacing every few years. Neither is objectively better; it's a real trade-off between measured performance and a specific sonic character some people prefer.
Built-in DAC or phono stage: convenience vs. a dedicated component
Many integrated amps now include a built-in DAC (for streaming and digital sources) or phono stage (for turntables), and for a first system this is usually the right call — one less box, one less cable run, and modern built-in DACs and phono stages are genuinely good. As a system gets more serious, a dedicated outboard DAC or phono stage can outperform what's built into an amp, but that's a later upgrade, not a starting requirement.
What to actually check before buying
- Does it have the inputs you need today (and maybe one spare) — phono, optical/digital, a subwoofer output if you'll ever add one?
- Is it rated to drive your speakers' impedance?
- Does the power rating comfortably exceed what your speaker sensitivity and room size call for, with headroom to spare?
- If you're buying new equipment, is the dealer authorized for that brand? An unauthorized/grey-market unit can carry a manufacturer warranty that isn't valid from day one.
Still unsure which amp fits your speakers and room? Ask us — that conversation is free, and we'd rather talk you into the right $1,200 amp than the wrong $2,500 one.