- 9 W RMS per Channel Stereo into 4 Ω
- 18 W RMS Mono into 8 Ω
- Selectable Stereo or Bridged Mono
- Selectable Built-In Peak Limiter
- 1/3 Rack, High-Density Rack Mounting
- Front-Panel Control for 2 Inputs
The RU-PA518 features two modes of operation: stereo and bridged mono. Depending on the mode of operation, the RU-PA518 can deliver from 5 to more than 18 watts of RMS power at the output. In stereo mode, each of the two inputs feeds its respective left or right output. Front-panel level controls set the gain for both left and right channels. When the rear-panel switch is set to the bridge mode, the two inputs (A and B) are mixed together and fed to the output. In either the stereo or mono mode, an internal audio peak limiter may be turned on using a rear panel switch. | Inputs (2): | Line level (+4 dBu nominal bal,
-10 dBV nominal unbalanced) | | Input Impedance: | 20 kΩ balanced bridging, or 10 kΩ unbalanced | | Input Connectors: | Balanced on barrier block; Unbalanced on phono jack | | Minimum Input Signal Levels: | Balanced: -6 dBu for rated power
Unbalanced: -20 dBV for rated power | | Maximum Input Signal Levels: | Balanced: +20 dBu
Unbalanced: +6 dBV | | Frequency Response: | 20 Hz to 40 kHz (+/-1 dB, stereo mode,8 Ω output @ 5 W RMS)
25 Hz to 40 kHz (+/-1 dB, stereo mode, 4 Ω output @ 9 W RMS)
25 Hz to 30 kHz (+/-1 dB, bridge mono mode, 8 Ω output @ 18 W RMS) | | THD+N: | < 0.05% below rated power (1 kHz)
< 0.1% below 18 W RMS (50 Hz to 20 kHz) | | Noise: | < -85 dB below rated output | | CMRR: | > 55 dB (50 Hz to 120 Hz) | | Crosstalk: | < -60 dB (stereo mode, 1 kHz) | | Output Power: | Stereo Mode:
> 5 W RMS per channel Into 8 Ω
> 9 W RMS per channel into 4 Ω
Mono Mode:
> 18 W RMS into 8 Ω | | Power Requirement: | GROUND-REFERENCED, 24 to 33 Vdc @ 1500 mA (RMS output) 1000 mA (Continuous music or voice) | | Ambient Operating Environment: | 0° C to 40° C |
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