PX-8 Phono Preamplifier

• Fully-balanced From Input to Output
• Zero Feedback
• Ayre’s Diamond Output Stage
• Ultra-low Noise Discrete JFET Circuitry
• Two-Stage Passive RIAA Equalization
• Independent Balanced and Single-Ended Inputs
• Adjustable Gain Accommodates Very Low to High Output Cartridges
• Cartridge Loading Adjustable via Front Panel Electronically
• High-Speed Circuit Board Material
• Multi-Stage Regulation Linear Analog Power Supply
• AyreLink Communication System
• Optional DS Audio Photo Optical Cartridge Input
• Optional Analog to Digital Output Circuit

Audio Inputs 

(1)Balanced

(1)Single-Ended

(1*)Single-Ended – DS Audio Photo Optical – Optional*

Input Impedance 

Electronically Adjustable

50Ω, 75Ω, 100Ω, 150Ω, 200Ω, 250Ω, 500Ω, 1kΩ, 5kΩ, 10kΩ, 47kΩ

Analog Outputs

Balanced

Single-Ended

Line Output: 10 Vrms Balanced, 5 Vrms Single-Ended Max

Output Gain 

45 dB, 55 dB, 65 dB, 75 dB – balanced outputs

45 dB, 55 dB, 65 dB, 75 dB – unbalanced outputs

Digital Outputs – Optional

Bit Depth: PCM 16, 20, 24 bits

USB

Class 2 44.1, 48, 88.2, 96, 176.4, 192, and 384 kHz
Class 1 44.1, 48, 88.2 and 96 kHz

SPDIF/Coax

44.1, 48, 88.2, 96, 176.4, and 192 kHz

TOSLINK

44.1, 48, 88.2, 96, 176.4, and 192 kHz

AES/EBU

44.1, 48, 88.2, 96, 176.4 and 192 kHz

DSD Output Signal

USB: 64x, 128x, and 256x

Digital Frequency Response

DC – 20 kHz (44.1 kHz sample rate)
DC – 22 kHz (48 kHz sample rate)
DC – 40 kHz (88.2 kHz sample rate)
DC – 44 kHz (96 kHz sample rate)
DC – 60 kHz (176.4 kHz sample rate)
DC – 66 kHz (192 kHz sample rate)
DC – 20 kHz (DSD64)
DC – 40 kHz (DSD128)

Analog Frequency Response

RIAA curve accurate to ± 0.05 dB (20 Hz – 20 kHz)

XLR Input Polarity

Pin 1 = Ground
Pin 2 = Non-inverting (Positive)
Pin 3 = Inverting (Negative)

Power Consumption

60 Watts Maximum

Dimensions

17.25″ W x 13.00″ D x 4.5″ H

(44cm x 33cm x 11.5cm)

Weight

12.5 pounds (5.7 kg)