Preamplifiers — Riviera Audio Labs APL1
Description, images, technical data and specifications
Riviera Audio Labs APL1
Image source — © Riviera Audio Labs
The amplification stages in the Riviera Audio Labs APL1 operate in pure class A. Riviera Audio Labs APL1 uses a more powerful power transformer and a capacitor block of the power supply filter. The preamplifier also uses an input transformer circuit for both types of inputs.
The switching capabilities of the Riviera Audio Labs APL1 include two pairs of unbalanced RCA outputs and one balanced XLR output, which can be used simultaneously and with the same gain. The input selector is based on electromagnetic relays.
Riviera Audio Labs equips the APL1 preamplifier with tubes from Slovakian company JJ Electronic, which provide durability and stable characteristics.
The switching capabilities of the Riviera Audio Labs APL1 include two pairs of unbalanced RCA outputs and one balanced XLR output, which can be used simultaneously and with the same gain. The input selector is based on electromagnetic relays.
Riviera Audio Labs equips the APL1 preamplifier with tubes from Slovakian company JJ Electronic, which provide durability and stable characteristics.
Specifications
Model name
APL1
Analog inputs (balanced)
1
Analog inputs (single-ended)
4
Analog outputs (balanced)
1
Analog outputs (single-ended)
2
Gain (dBu)
N/A
Input sensitivity (mV)
N/A
Output voltage (V)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
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)
N/A
Total Harmonic Distortion + Noise (THD+N) (%)
N/A
Dimensions (mm)
440 × 505 × 164
Weight (kg)
19.6
Official link
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