Active 250 Series
Active 250 is the high-power mono amplifier in the Audio Wave lineup — 450 W RMS @ 2Ω (16V) from a single unit, or 680 W RMS @ 4Ω with two bridged. 0.0001% THD+N @ 1W, –124 dB SNR at full power and a 9.5 Hz – 120 kHz response deliver reference-grade detail and dynamics.
Description
Active 250 is Audio Wave's high-power Class A/B mono amplifier, engineered for demanding driving applications. Single-unit output at 14.4V supply: 390W RMS into 2Ω, 270W RMS into 4Ω, 160W RMS into 8Ω; at 16V supply: 450W into 2Ω, 340W into 4Ω, 200W into 8Ω. In bridged dual-amp mode, 14.4V 4Ω reaches 540W RMS, and 16V 4Ω hits 680W RMS — ample headroom for high-output speakers and subwoofer applications.
Performance specs: 9.5Hz–120kHz (-2dB) extended frequency response, full-power SNR > –124dB A/WTD, 1W SNR –106dB at 8Ω and –102dB at 4Ω. THD+N at 1W as low as 0.0001%, IMD only 0.0043% (60Hz/7kHz). Input sensitivity 0.1V–2V, input impedance 33kΩ accommodates a wide range of preamp signal levels.
Operating voltage 9–16V DC, idle current ±1.3A, full-load current 60A at 2Ω and 32A at 4Ω. Active 250 serves as a dedicated mono amplifier within a car hi-end system — single unit for full-range or subwoofer drivers, dual bridged for flagship-grade subwoofer power.
Key Highlights
- High-power Class A/B mono amplifier
- 16V output: 450W/2Ω, 340W/4Ω, 200W/8Ω RMS
- Bridged dual-amp 16V 4Ω: 680W RMS
- 9.5Hz–120kHz frequency response (-2dB)
- Full-power SNR > –124dB A/WTD
- THD+N 0.0001% @ 1W, IMD 0.0043%
Specifications
| Amplifier Class | AB 類 |
| Channels | 1 聲道（單聲道） |
| Output @ 8Ω (14.4V) | 160 W RMS @ 8Ω（14.4V，0.1% THD） |
| Output @ 4Ω (14.4V) | 270 W RMS @ 4Ω（14.4V，0.1% THD） |
| Output @ 2Ω (14.4V) | 390 W RMS @ 2Ω（14.4V，0.1% THD） |
| Output @ 8Ω (16V) | 200 W RMS @ 8Ω（16V，0.1% THD） |
| Output @ 4Ω (16V) | 340 W RMS @ 4Ω（16V，0.1% THD） |
| Output @ 2Ω (16V) | 450 W RMS @ 2Ω（16V，0.1% THD） |
| Bridged @ 8Ω (14.4V) | 330 W RMS @ 8Ω（雙機橋接，14.4V，0.1% THD） |
| Bridged @ 4Ω (14.4V) | 540 W RMS @ 4Ω（雙機橋接，14.4V，0.1% THD） |
| Bridged @ 8Ω (16V) | 400 W RMS @ 8Ω（雙機橋接，16V，0.1% THD） |
| Bridged @ 4Ω (16V) | 680 W RMS @ 4Ω（雙機橋接，16V，0.1% THD） |
| Frequency Response | 9.5 Hz – 120 kHz (-2dB) |
| Input Sensitivity | 0.1V – 2V |
| Input Impedance | 33 kΩ |
| Signal-to-Noise Ratio | >–124 dB A/WTD @ 滿功率 |
| SNR @ 1W, 8Ω | –106 dB A/WTD @ 1W 輸出 |
| SNR @ 1W, 4Ω | –102 dB A/WTD @ 1W 輸出 |
| IMD | 0.0043% @ 60Hz/7kHz |
| THD+N @ 1W | 0.0001% @ 8/4/2 Ω（THD+N @ 1W） |
| Input Voltage | 9–16 V DC |
| Idle Current | ±1.3 A |
| Current Draw | 60A @ 2Ω、32A @ 4Ω |
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