Product Overview
The first vacuum tube mic preamp designed for the LaChapell Audio 500 series format, the Model 583s MK2 is still the only 500 series module that properly powers the tube with 250V of TrueTube™ technology. Unlike some other 500 series vacuum tube mic preamps, tube of voltages aren't starved in any way. And since this all occurs internally within the 583 module, there's no need to fear harming your 500 series power supply. Its dual drive knobs separately drive the input and output, providing total flexibility to explore a wide-ranging sonic pallet, bringing enhanced versatility to all your recordings.
LaChapell Model 583s MK2 Features:
- 500 Series Tube Preamp: The 583s MK2 was the first ever tube preamp for the 500 series. It is extremely versatile, allowing a wide range of sonic options from clean to harmonically rich. It’s great for use on almost any source with almost any mic.
- TrueTube Powered Tubes: TrueTube technology supplies both the plate and filament of the tube with the proper voltages they need to access the full characteristics of the tube. Other tube preamp designs cannot supply the needed 250V and don’t have the headroom or harmonics that characterize that classic tube sound.
- Autoswitching front panel Hi-Z input: The front panel Hi-Z input allows the 583s to be used as an instrument preamplifier. When a ¼" jack is inserted into the Hi-Z input, the 583s switches into instrument mode, bypassing the input transformer so the instrument accesses the tube directly.
- Dual drive knobs: The Dual Drive knobs on the 583s provide an incredible array of tonal options. The input knob drives the input to the first vacuum tube preamp and the second knob drives the input to the output tube preamp. Together, you can dial in sounds from pristine to warm and harmonically rich.
- API/VPR Certified: The 583s is certified by the VPR alliance giving you the assurance that it operates within specifications. Even though we properly power the tube with 250V, the 583s draws no more power than other modules (and less than many). You can fill a properly powered frame with 583s mic preamp modules with no problems whatsoever.
- Boutique Quality Transformers: With a Cinemag input transformer and Jensen output transformer, the 583s maintains a boutique quality signal chain from I to O. Every aspect of the 583s has been designed for sonic quality that will last for generations.
LaChapell Audio 583s MK2 Specifications:
- Internal Gain: 0 to >72 dB
- THD+N: 0.10% (minimum)
- Frequency Response: 10 Hz to 50 KHz
- Max Output (1% THD+N): +26 dBu
- Typical EIN: -121 dBu
- Input Impedance: 1.5 kOhms
- Tube Compliment: 1 x 12AX7 / ECC83
