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Preamplifiers — Fluo PRE 1
Description, images, technical data and specifications
Fluo PRE 1
Image source — © Fluo
The PRE1 is a line preamplifier from Fluo, designed as a dual mono unit housed in one enclosure. Left and right run on two separate circuit boards, keeping the channels apart up to the output.
Key specs that matter
The JFET balanced input circuit from Fluo power amplifiers is reused in the PRE1 for all audio inputs and outputs, and the power supply follows the same low-noise technology as those amplifiers. Input impedance is 20k ohms for XLR and RCA alike. Second and third harmonics sit at 0.0002 percent, 114 dB below the signal. The chassis measures 485 x 125 x 525 mm.
Pairing
Sharing its input stage and supply design with Fluo power amplifiers, the PRE1 is intended as the control unit for those models, while the equal input impedance on both input types suits balanced and RCA sources alike.
Alternatives
Fluo does not list another line preamplifier beside the PRE1.
Key specs that matter
The JFET balanced input circuit from Fluo power amplifiers is reused in the PRE1 for all audio inputs and outputs, and the power supply follows the same low-noise technology as those amplifiers. Input impedance is 20k ohms for XLR and RCA alike. Second and third harmonics sit at 0.0002 percent, 114 dB below the signal. The chassis measures 485 x 125 x 525 mm.
Pairing
Sharing its input stage and supply design with Fluo power amplifiers, the PRE1 is intended as the control unit for those models, while the equal input impedance on both input types suits balanced and RCA sources alike.
Alternatives
Fluo does not list another line preamplifier beside the PRE1.
Specifications
Model name
PRE 1
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
N/A
Analog outputs (balanced)
N/A
Analog outputs (single-ended)
N/A
Gain (dBu)
N/A
Input sensitivity (mV)
N/A
Output voltage (V)
N/A
Input impedance (balanced) (Ω)
20 000
Input impedance (single-ended) (Ω)
20 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Maximum output level (balanced) (dBu)
N/A
Maximum output level (single-ended) (dBu)
N/A
Volume control range (dBu)
N/A
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Signal to Noise Ratio (SNR, unweighted) (dB)
114
Total Harmonic Distortion + Noise (THD+N) (%)
0,0002
Dimensions (mm)
485 x 125 x 525
Weight (kg)
N/A
Official link