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Preamplifiers — Circle Labs Audio P300
Description, images, technical data and specifications
Circle Labs Audio P300
Image source - © Circle Labs Audio
The P300 is a preamplifier from Circle Labs Audio, built with a very wide rated bandwidth.
Key specs that matter
Two balanced and three single-ended inputs are provided, with two balanced outputs. Input impedance is 66 kOhm balanced and 33 kOhm single-ended, an easy load for a source. Output impedance is 15 ohms, a very low figure. Rated bandwidth is 2 Hz to 500 kHz. The chassis measures 430 x 342 x 127 mm and weighs 10.6 kg.
Pairing
The two balanced outputs work naturally with a balanced power amplifier, and the low output impedance suits long cable runs.
Alternatives
Circle Labs Audio's broader electronics range offers matching partner components from the same brand.
Key specs that matter
Two balanced and three single-ended inputs are provided, with two balanced outputs. Input impedance is 66 kOhm balanced and 33 kOhm single-ended, an easy load for a source. Output impedance is 15 ohms, a very low figure. Rated bandwidth is 2 Hz to 500 kHz. The chassis measures 430 x 342 x 127 mm and weighs 10.6 kg.
Pairing
The two balanced outputs work naturally with a balanced power amplifier, and the low output impedance suits long cable runs.
Alternatives
Circle Labs Audio's broader electronics range offers matching partner components from the same brand.
Specifications
Model name
P300
Analog inputs (balanced)
2
Analog inputs (single-ended)
3
Analog outputs (balanced)
2
Analog outputs (single-ended)
N/A
Gain (dBu)
N/A
Input sensitivity (mV)
N/A
Output voltage (V)
N/A
Input impedance (balanced) (Ω)
66 000
Input impedance (single-ended) (Ω)
33 000
Output impedance (balanced) (Ω)
15
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)
2
Frequency response high +/- 3dB (Hz)
500 000
Signal to Noise Ratio (SNR, unweighted) (dB)
N/A
Total Harmonic Distortion + Noise (THD+N) (%)
N/A
Dimensions (mm)
430 x 342 x 127
Weight (kg)
10.6
Official link