PreSonus ADL 600
The top-of-the-line tube mic preamplifier is the ADL 600. It uses only top-tier components and operates on 300V power rails for maximum headroom and excellent tone. It has a Class A, discrete design with three premium vacuum tubes per channel. Ultimate common-mode rejection is made possible by the dual-transformer architecture, which also guarantees low noise operation. The result is a tube preamp with a large, warm, smooth, clear, and distinct sound that is extremely low in noise.
The top-of-the-line tube mic preamplifier is the ADL 600. It uses only top-tier components and operates on 300V power rails for maximum headroom and excellent tone. It has a Class A, discrete design with three premium vacuum tubes per channel. Ultimate common-mode rejection is made possible by the dual-transformer architecture, which also guarantees low noise operation. The result is a tube preamp with a large, warm, smooth, clear, and distinct sound that is extremely low in noise.
SPECIFICATIONS
| Input Impedance | |
| Microphone | Selectable, 150/300/900/1500Ω |
| Balanced Line | 2 kΩ |
| Instrument | 100 kΩ |
| Maximum Input Level | |
| Microphone (1500Ω, +20 dB Pad out) | +5 dBu |
| Microphone (1500Ω, +20 dB Pad in) | +25 dBu |
| Balanced Line | +30 dBu |
| Instrument | +30 dBu |
| Gain Range | |
| Microphone (1500Ω, +20 dB Pad out) | 18 dB to 72 dB |
| Balanced Line | -12 dB to 40 dB |
| Instrument | -5 dB to 42 dB |
| Performance | |
| Noise Floor (all inputs, minimum gain) | -95 dBu (A-weighted) |
| Microphone Equivalent Input Noise (EIN) | -125 dBu (A-weighted) |
| Frequency Response | 10 Hz to 45 kHz ±1 dB |
| Maximum Output Level | +23 dBu (@ 0.5%THD+N) |
| Output Impedance | 600Ω |
| Tube Complement (per channel) | 1-12AT7A, 2-6922 |
| Power | |
| Internal supply, standard IEC connector | 115 or 230 VAC / 100W |
| Physical | |
| Dimensions | 2U rackmount |
| Height | 3.5” (88.9 mm) |
| Depth | 17" (431.8 mm) |
| Width | 19” (482.6 mm) |
| Weight | 28 lb. (12.7 kg) |
| SKU | ADL600 |
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