JDV-Pre
The JDV-Pre is a 500 series single-channel instrument preamplifier with a discrete class-A design, intended for bass, acoustic and piezo-equipped instruments. It also accepts a condenser microphone on a rear XLR input. The maker lists it as discontinued.
- 500 series instrument preamp module
- 100% discrete class-A design
- Feed-forward input stage, no negative feedback
- AccuState gain control for low noise
- Variable low-frequency cut for acoustic instruments
- Switchable 4 megohm input for piezo pickups
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The JDV-Pre is a 500 series module built around a fully discrete class-A signal path. Its feed-forward input stage uses no negative feedback, and the gain control is an AccuState design intended to keep noise low across the range. A variable low-frequency cut helps tame boominess on acoustic instruments.
The input impedance is switchable, including an ultra-high 4 megohm setting meant to bring out the full tone of piezo pickups on violin, cello or string bass. A standard setup has a bass with magnetic pickups plugged into the front panel jack, with the signal passed through to a stage amp while the balanced output feeds a recording or PA system.
A condenser instrument microphone can be connected to the rear XLR input, so the module can also serve as a microphone preamp. The balanced output connects to a recording or PA system. A user guide and a smart sheet are available for owners.
Specifikationer
- Märke
- Radial Engineering
- Modell
- JDV-Pre
- Kategori
- Studio › Förförstärkare och outboard
Inputs
- Front panel input
- Instrument jack
- Rear input
- XLR for condenser instrument microphone
- Input impedance
- Variable, including ultra-high 4 meg Ohms mode
Outputs
- Main output
- Balanced
- Thru output
- Instrument signal thruput to stage amp
Audio
- Circuit design
- 100% discrete class-A
- Input stage
- Feed-forward, zero negative feedback
- Gain control
- AccuState, low noise at all levels
- Low frequency cut
- Variable
Physical
- Format
- 500 series module
- Part number
- R700 0120 00
- Product type
- Instrument preamplifier
Software
- Resources
- User Guide, Smart Sheet
- Status
- Discontinued, no longer shipping