The Micro AMP 1 and Micro AMP 2 mkII provide an amplified speaker output and a headphone output. The Micro AMP 1 adds a line-level output, audio processing, and switching between two volume levels through an input contact or RS-232.
Connections shared by both models
- Unbalanced stereo 0 dBu line-level audio input on RCA connectors.
- Amplified stereo speaker output on removable terminal blocks.
- Stereo headphone output on a 3.5 mm jack.
- External DC power connector: 2.1 mm / 5.5 mm.
- Power indication.
Micro AMP 1: additional connections and controls
- Unbalanced stereo 0 dBu line-level audio output on RCA connectors, after audio processing.
- Optocoupled input contact on a 3.81 mm removable terminal block.
- RS-232 connection and power output on a removable terminal block; baud rates of 4,800, 9,600 or 19,200.
- The input contact terminal block also includes a power output.
- Front-panel clickable knob and indicators for selecting and changing settings.
- Class D amplified stereo speaker output.
- Stereo headphone output on a 3.5 mm TRS jack.
- Separate headphone volume knob.
Micro AMP 1 setting ranges
| Setting | Range | Increment | Default |
|---|---|---|---|
| Volume 1 | −56 to 0 dB | 1 dB | −40 dB |
| Volume 2 | −56 to 0 dB | 1 dB | −35 dB |
| PAN R/L: left/right balance | −72 to 0 dB | 1 dB | 0 dB on both channels |
| Input Gain | 0 to +30 dB | 2 dB | 0 dB |
| Fade time: fade duration between volume levels | 0 to 9 seconds | 1 second | 0 seconds |
| Trigger time: time Volume 2 is maintained after the trigger ends | 0 to 45 seconds | 5 seconds | 0 seconds |
| EQ - Bass | −14 to +14 dB | 2 dB | 0 dB |
| EQ - Medium: midrange | −14 to +14 dB | 2 dB | 0 dB |
| EQ - Treble | −14 to +14 dB | 2 dB | 0 dB |
Micro AMP 2 mkII: controls and amplification
- Separate speaker and headphone volume controls.
- Class D speaker amplifier in bridge-tied load (BTL) configuration.
- Separate headphone amplifier.
- Speaker output on 3.81 mm removable terminal blocks.
- Headphone output on a 3.5 mm TRS jack.
Speaker output power
Micro AMP 1
| Power | Load | THD+N | Frequency |
|---|---|---|---|
| 2 × 8 W | 8 Ω | 1% | 1 kHz |
| 2 × 10 W | 8 Ω | 10% | 1 kHz |
| 2 × 15 W | 4 Ω | 1% | 1 kHz |
| 2 × 19 W | 4 Ω | 10% | 1 kHz |
Micro AMP 2 mkII
| Supply voltage | Power | Load | THD+N | Frequency |
|---|---|---|---|---|
| 12 V | 2 × 8 W | 8 Ω | 1% | 1 kHz |
| 12 V | 2 × 10 W | 8 Ω | 10% | 1 kHz |
| 12 V | 2 × 15 W | 4 Ω | 1% | 1 kHz |
| 12 V | 2 × 19 W | 4 Ω | 10% | 1 kHz |
| 14.4 V | 2 × 12 W | 8 Ω | 1% | 1 kHz |
| 14.4 V | 2 × 15 W | 8 Ω | 10% | 1 kHz |
| 14.4 V | 2 × 23 W | 4 Ω | 1% | 1 kHz |
| 14.4 V | 2 × 26 W | 4 Ω | 10% | 1 kHz |
Headphone output power
| Power | Load | THD+N | Frequency |
|---|---|---|---|
| 2 × 85 mW | 32 Ω | 0.1% | 1 kHz |
| 2 × 110 mW | 32 Ω | 10% | 1 kHz |
| 2 × 200 mW | 8 Ω | 0.1% | 1 kHz |
| 2 × 325 mW | 8 Ω | 10% | 1 kHz |
Power supply and consumption
Both models have a nominal supply voltage of 12 V DC and reverse polarity protection.
Micro AMP 1
- Consumption at 12 V and maximum listening level: up to 3 A.
- Standby consumption: less than 150 mA.
Micro AMP 2 mkII
- Supply range : 10 to 14.4 V.
- Recommended voltage when using a regulated, filtered power supply or a battery: 12 V DC.
- Power connector: centre-positive.
- Consumption at 12 V and maximum listening level: up to 3 A.
- Idle consumption with the input level at zero: less than 60 mA, less than 150 mA in standby.
Temperatures, dimensions and weight
- Operating temperature for both models: 0 to +60 °C.
- Storage temperature for both models: −20 to +60 °C.
- Weight of both models: 250 g with removable terminal blocks.
- Width: 140 mm, equivalent to 1/3 of a 19-inch rack.
- Height: 43 mm, 1U format.
- Depth without/with removable terminal blocks: 100/107 mm.
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