Phoenix Audio DRS-1R/500 – mono Class-A microphone preamp/DI for 500-series format. Modern Class-A design with transformerless mic input and balanced output for ultra-clean to warm vintage tones. Ideal for ribbon/dynamic mics like Shure SM7B and instruments (guitars, basses, synths) with high 10MΩ impedance. Delivers versatile, detailed sound in professional studios.
Features unique Class-A input stage and DSOP-2 discrete output with custom DB694 transformer. Wired with PTFE silver-plated cable for low noise. Includes -30dB pad, 120Hz HPF (-6dB/octave), LED gain metering, push-button controls for 48V phantom, phase reverse, and HPF. Built-in 24V PSU ensures true unit performance beyond standard 16V lunchbox limits.
Compact 500-series module suits hybrid setups, enhancing recordings with transparency and optional saturation.
MAIN FEATURES
- Class-A transformerless mic input stage
- DSOP-2 Class-A discrete output with custom DB694 transformer
- Wired with PTFE silver-plated military-grade cable
- -30dB input pad
- High-pass filter: -6dB/octave @ 120Hz
- LED gain metering
- Push-button controls: HPF, 48V phantom, phase reverse
- High mic impedance (10kΩ) for ribbons/dynamics
- DI with 10MΩ input, no FETs for natural instrument sound
- Built-in 24V PSU for optimal performance
TECHNICAL SPECIFICATIONS
- Inputs: XLR mic/line (balanced), 1/4" TS DI
- Outputs: 500-series output (balanced)
- Gain Range (Mic): -30 to +70dB (5dB steps + 10dB output fader)
- Gain Reduction: -30dB pad (mic/line switch)
- DI Gain: Max 30dB
- Mic Impedance: 10kΩ
- Frequency Response (Mic): -0.4dB @ 40Hz, -0.3dB @ 25kHz
- Frequency Response (DI): -0.3dB @ 40Hz, -0.5dB @ 25kHz
- Headroom: +26dB (mic pre stage)
- Output Specs: 20Hz-20kHz ±0.5dB, max +26dBu @1kHz, noise -90dB
- Power Supply: Built-in 24V DC
- Dimensions (W x H x D): 500-series module (standard 1.5" x 5.25" x 6")
- Weight: Not specified
- Included: DRS-1R/500 module
- Product Code: DRS-1R/500
