E1X A500 Analog Integrated Amplifier

The E1X A500 Integrated amplifier is designed in a sleek all-aluminum chassis using our unique constrained layer damping that provides the highest quality anti-vibration platform for high-power amplification. The E1X discrete SSHC (Single Stage High Current) input amplifier and output stage are combined with switch mode power that produces 250W 8 ohms and 500W into 4 ohms per channel, communicating the full musical message

Guide to Streaming

The E1X A500 Integrated amplifier combines the finest fully balanced analog preamp with high-powered stereo amplification in a constrain layer E1X aluminum chassis. Designed to support the finest source components with balanced and single-ended analog inputs combined with high-powered stereo amplification. The precision volume control lets you dial in the level to drive the most complex or efficient speaker with ultra-low noise power. The combination is dynamic and detailed.

The Ultra-low distortion and noise performance is the result of a fully balanced internal architecture and discrete high current output buffers that provide a compelling combination of dynamic resolution, impact, and years of design experience.

125dB Dynamic Range preserves all recorded information

  • Distortion below 0.001% for pure sound

  • High current discrete custom output buffers

The high efficiency of Class D eliminates thermal modulation, making the E1X integrated amplifier resistant to output stage bias wander and sonic ghosting. The output power devices are operating as efficient switches, in that few output devices are needed to deliver considerable audio power. The E1X Amplifier is designed with ultra-short signal paths and uses the absolute minimum number of output devices to deliver over 500 watts of audio power without loss of dynamics, remaining true to the audio source.

The fully balanced preamplifier stage is designed using precision resistors and custom low noise triple isolated power transformer to maintain the optimal signal balance to the amplifier that achieves the lowest noise and distortion levels possible.

  • 2 Pair XLR balanced inputs

  • 4 High Quality Cardas custom RCA Inputs

  • 1 Pair Independently Buffered XLR and RCA Outputs

  • WBT NextGen speaker post

  • Independent Headphone output

The E1X A500 Integrated Amplifier delivers powerful, controlled performance through a rigid, all-aluminum, low-vibration chassis. Its discrete SSHC input stage, high-current output design, and advanced switch-mode power supply provide 250W into 8 ohms and 500W into 4 ohms—preserving clarity, drive, and musical detail at any volume.

E1X-A500

TECH

 E1X A500 Integrated Amplifier Technology

Our proprietary SSHA (Single Stage High-Current Amplifier) interposer defines the sonic quality of the E1X Integrated Amplifier. This is a very fast, low noise amplifier with a single-stage folded cascode architecture and over 500mA of peak current output capability. It maintains constant very low distortion levels through the audio band because of its high open-loop bandwidth. The SSHA module brings a further element of dynamic resolution and contrast to the NCore Amplifier power buffer. The vertical modular design permits a tight, efficient Printed Circuit Board (PCB) layout that combines the best of IC based and discrete component design. The PCB represents a final degree of design refinement that is especially critical when the circuit is capable of 130dB of dynamic range or more.

e1X-A500 Specifications

Performance

Power Output 1% THD per Channel: 500W 4 ohms, 250W 8 ohms

Minimum Load: 2 ohms

Peak Output Current: 27 amperes

Frequency Response: +/-3 dB 0Hz-50KHz, all loads

THD+N: 0.002% 1W, 1KHz, 4 ohms

IMD (CCIF): 0.0003%, 1W, 14:15KHz, 4 ohms

Output noise: 35uVRMS A-weighted 10Hz-20KHz

Voltage gain: 27dB (internal switches select for 33dB)

Damping factor: >500

Output Impedance at 100Hz: <16 milliohms

Dynamic Range: 126dB

Input Voltage for Max Output: 2.3Vrms at 27dB gain

Input connections: Single-ended RCA or balanced XLR

RCA input impedance: 10Kohms

Balanced input impedance: 20Kohms

Output connections: 2 sets WBT Nextgen 5-way binding posts

Analog Inputs

Balanced Input Impedance: 10k Ohms

Single-ended Line Input Impedance: 50k Ohms

Maximum Input Level Balanced: 5Vrms

Maximum Input Level Single Ended: 2.5Vrms

Analog Outputs

Maximum Output Level, RCA and XLR: 5Vrms

Distortion at 1Vrms Output: <0.001% 1KHz

Dynamic Range: 125dB A-Weighted re: 5Vrms

Single-ended Line Out Impedance: 50 Ohms

Balanced Output Impedance: 100 Ohms


Features and specifications are subject to improvements and changes without prior notice.