CEntrance Ampersand Portable Balanced Headphone Power Amp

The CEntrance Ampersand is a portable balanced headphone amplifier with impressive features. It offers up to 6W of clean, powerful audio through balanced XLR and Pentaconn outputs, perfect for all headphones, especially planar models. It supports both balanced and single-ended inputs/outputs, includes 4.4mm and 3.5mm inputs, and charges via USB Type-C with a 12V lithium-ion battery providing up to 5 hours of wireless playtime after a 4.5-hour charge.

CEntrance Ampersand Features:

• Works with any music source: digital audio players (DAP), laptops, phones, and tablets
• Delivers clarity, power, and punch to your favorite headphones
• Supports balanced input on 4.4mm Pentaconn and unbalanced input on 3.5mm jack
• Balanced Class-A amplifier implementation allows to travel with high fidelity
• Precision audiophile op-amps are used throughout for lowest levels of noise and THD
• Analog volume control with hydraulic pressure absorbing system, for a smooth feel
• Hybrid Power System isolates sensitive circuitry from noise and interference
• Battery Supply reconditions wall power to deliver clean signal to your headphones
• Precision, 6-step Stereo VU meter shows your music levels and helps avoid overload
• Meter brightness is dimmable from “daylight visible” to “night mode” (invisible) levels
• USB Type-C power, together with the internal battery, delivers even more output power
• Internal battery charges from any standard USB charger or power bank (5V / 2.4A)
• 3-position gain switch allows you to match the output to a variety of headphones
• Var/Fix switch lets you choose if volume is controlled with local knob or at the DAP
• Aircraft-grade, anodized aluminum chassis offers scratch protection and durability

CEntrance Ampersand Specifications:

• Number of Headphone Channels: 2-Channel
• Recommended Headphone Impedance:)8 to 600 Ohms
• Headphone Output Power:
  • 2.3 W into 13 Ohms
  • 3 W into 16 Ohms
  • 4.4 W into 22 Ohms
  • 6 W into 48 Ohms
• Digital Chipset: Not Specified by Manufacturer
• EQ: No
• Connectivity:
  • Analog Audio I/O:
    • 1x XLR 4-Pin Balanced Stereo Headphone Output
    • 1x 4.4 mm TRRS Balanced Stereo Headphone Output
    • 1x 1/4" TRS Unbalanced Stereo Headphone Output
    • 1x 4.4 mm TRRS Balanced Stereo Line Input
    • 1x 1/8" / 3.5 mm TRS Unbalanced Stereo Line Input
  • Digital Audio I/O: No
  • USB I/O: 1x USB-C (Power/Charging Input)
• Performance:
  • Frequency Response: 20 Hz to 20 kHz ±0.2 dB
  • Gain/Trim Range: -20 dB to 0 dB (Switch: -20, -10, 0)
  • Maximum Output Level: 12 Vrms
  • Impedance:
    • Outputs: 1 Ohm
  • THD+N: 0.0089%
• Compatibility:
  • Mobile Device Compatibility: No
• Power:
  • Power Requirements: Built-In Rechargeable Battery, USB Bus Power
  • DC Input Power: 12 VDC
  • AC/DC Power Adapter: 5 VDC
  • Current Consumption: 2 A
  • Battery Type: 1x Internal Rechargeable
  • Internal Battery: Rechargeable Lithium-Ion Polymer (LiPo)
  • Battery Charging Time: 4.5 Hours
  • Approximate Battery Life: 5 Hours
• Physical:
  • Dimensions: 4.8 x 2.8 x 1.4" / 121 x 70 x 36 mm
  • Weight: 8.9 oz / 252.0 g