Capability

Power amplification

Power amplification supplies the voltage and current needed to drive loudspeakers from an audio signal.

The function can sit in a separate power amplifier or inside an integrated amplifier, alongside source selection and volume control. Those controls are separate functions: power amplification alone does not provide them.

Output power, measured in watts, describes what the amplifier can deliver under stated conditions. Compare ratings at the same speaker load impedance, frequency range, distortion limit and number of channels driven. Peak or dynamic power is not interchangeable with continuous power. The supported speaker load also matters; a watt figure alone does not establish compatibility.

Input sensitivity is the input voltage needed to reach a stated output power at the specified load and gain setting. Voltage gain describes how much the input voltage is multiplied. Higher gain does not, by itself, mean a higher maximum power output.

Product categories with this capability

Reference pageIn preparation
Power amplifiers
Integrated amplifiers

Specifications

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Gain (Balanced)
- Gain (Balanced) — Power Amp
Gain (Unbalanced)
- Gain (Unbalanced) — Power Amp
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Speaker Output Taps
- Speaker Output Taps — Power Amp
Output Tube Complement
- Output Tube Complement — Power Amp
12V Trigger In/Out
- 12V Trigger In/Out — Power Amp
Bridgeable / Mono Mode
- Bridgeable / Mono Mode — Power Amp
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Rated Power into 6 Ohms
- Rated Power into 6 Ohms — Power Amp
Speaker Binding Posts
- Speaker Binding Posts — Power Amp
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Dual-Mono Construction
- Dual-Mono Construction — Power Amp
Output Stage Topology
- Output Stage Topology — Power Amp
Triode / Ultralinear Switch
- Triode / Ultralinear Switch — Power Amp
Rated Power into 4 Ohms
- Rated Power into 4 Ohms — Power Amp
Damping Factor
- Damping Factor — Power Amp
Auto-Bias
- Auto-Bias — Power Amp
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Bridged Power Output
- Bridged Power Output — Power Amp
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Rated Power into 8 Ohms
- Rated Power into 8 Ohms — Power Amp
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Class A Bias Power
- Class A Bias Power — Power Amp
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Rated Power into 1 Ohm
- Rated Power into 1 Ohm — Power Amp
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Rated Power into 2 Ohms
- Rated Power into 2 Ohms — Power Amp
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Rated Power into 16 Ohms
- Rated Power into 16 Ohms — Power Amp
Application
- Application — Power Amp
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Input Sensitivity (Unbalanced)
- Input Sensitivity (Unbalanced) — Power Amp
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Minimum Speaker Load
- Minimum Speaker Load — Power Amp
Input Sensitivity (Balanced)
- Input Sensitivity (Balanced) — Power Amp

Sources

RMB-1555 / RMB-1585 owner manual — Rotel
Audio Chain — Benchmark Media Systems
C 298 Stereo Power Amplifier — NAD Electronics
RA-1572MKII integrated amplifier — Rotel
AHB2 power amplifier specifications — Benchmark Media Systems
AHB2 instruction manual, Rev H — Benchmark Media Systems