The LaChapell Audio 583E 500-Series Tube Preamp is a 500 Series tube preamp with an EQ section that can function independently as two separate modules. Incredible on microphone source, it also features a Hi-Z input for instruments.
The LaChapell Audio 583E features a single channel vacuum tube preamplifier with LaChapell Audios proprietary TrueTube technology. TrueTube delivers 250V to the tube, properly powering it so that it operates at its full potential and is not starved for power. In addition, the LaChapell Audio 583E features an ultra-clean EQ section that can follow the preamp or operate as a separate module.
LaChapell Audio 583E 500-Series Tube Preamp Features
- 500 Series Tube Preamp: The 583s 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 1/4″ 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.
- Combined or Independent EQ Section: The clean and transparent EQ section on the 583E can operate immediately following the tube preamp section, or as its own separate module. When combined, the output of the preamp and EQ appears on the Preamp Side XLR outputs. When independent, the in and out of the EQ Side operate separately.
- 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 583E 500-Series Tube Preamp Specifications
- INTERNAL GAIN: 0 to >72dB
- THD+N: 0.10% (minimum)
- FREQUENCY RESPONSE : 10Hz to 50KHz
- MAX OUTPUT (1% THD+N): +26dBu
- TYPICAL EIN: -121dBu
- INPUT IMPEDANCE: 1.5KΩ
- TUBE COMPLIMENT: 1 x 12AX7 / ECC83
LaChapell Audio 583E 500-Series Tube EQ Specifications
- NOISE FLOOR: -95dB
- THD+N: 0.012% (@ +4 output)
- FREQUENCY RESPONSE: 10Hz to 50KHz (flat)
- CUT / BOOST RANGE: +/- 8dBu
- MAXIMUM INPUT LEVEL: ≥25dB
- INPUT IMPEDANCE: 48KΩ
- INPUT / OUTPUT TYPE: TRANSFORMERLESS
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Top notch unit
May 27th 2011The LaChapell 583E preamp is mostly clean and clear with incredible depth, but can be driven into a variety of distortion textures with different combinations of the input and output drive knobs. The LaChapell 583E EQ is a mostly transparent EQ that somehow shifts the frequency spectrum of the audio without leaving the resultant audio sounding EQ'd.
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LaChapell Absolute Top Shelf Gear
Jan 21st 2011I had this unit at the studio for a few weeks. It's a real winner for sure. These things are great on kick, bass ans especially acoustic instruments. I own a different LaChappel pre. The eq is musical and the pre is definitely flawless. if you are looking for big open sounds,this unit is for you. The company has a spotless reputation for service as well. Their customer service is absolutely as good as it gets.
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