Matrix M-Stage HPA-3B Balanced Headphone Amp
Matrix M-Stage HPA-3B Balanced Headphone Amp

Fully Balanced Design

From Matrix’s highly regarded M-Stage series, the HPA-3B is a Class A balanced headphone amplifier that supports both single-ended and differential outputs, maximizing your headphones’ performance. It has two XLR inputs for a balanced input, and in case you don’t have a balanced DAC, comes with two XLR-to-RCA adapters for a standard unbalanced input. Three gain level options allow you to adjust for varying sensitivity and impedance. Designed to quickly dissipate heat, the brushed black metal enclosure houses an ALPS volume potentiometer, Noratel toroidal transformer, Wima and Nichicon capacitors, and sturdy switch quality throughout.

To learn more about the Matrix M-Stage HPA-3B, check out this Head-Fi review.

Matrix M-Stage HPA-3B Balanced Headphone Amp
Matrix M-Stage HPA-3B Balanced Headphone Amp
Matrix M-Stage HPA-3B Balanced Headphone Amp
Matrix M-Stage HPA-3B Balanced Headphone Amp
Matrix M-Stage HPA-3B Balanced Headphone Amp

Specs: Matrix M-Stage HPA-3B

  • Power voltage, 230 V position: fit for AC 220 – 240 V (50/60 Hz)
  • Power voltage, 115 V position: fit for AC 100 – 120 V (50/60 Hz)
  • Power consumption: < 25 W
  • Fuse: AC 250 V / 500 mA 5 x 20 mm
  • Dimensions, L x W x H: 11.2 x 5.6 x 1.9 in (28.5 x 14.2 x 4.9 cm)
  • Weight: 3.7 lbs (1.7 kg)

Balance headphone output:

  • Signal-to-noise ratio: > -114 dB A-weighting
  • THD+N: < 0.0003% at 300 ohms, 135 mW, 1 kHz A-weighting
  • Frequency response: 20 Hz – 20 kHz (+0 dB / -0.05 dB)
  • Output impedance: 0.6 ohms
  • Output power (at THD+N 0.01%): 3800 mW at 33 ohms, 1500 mW at 300 ohms, 800 mW at 600 ohms

SE headphone output:

  • Signal-to-noise ratio: > -108 dB A-weighting
  • THD+N: < 0.0004% at 300 ohms, 325 mW, 1 kHz A-weighting
  • Frequency response: 20 Hz – 20 kHz (+0.03 dB / -0.1 dB)
  • Output impedance: 0.4 ohms
  • Output power (at THD+N 0.01%): 2100 mW at 33 ohms, 430 mW at 300 ohms, 220 mW at 600 ohms

Shipping

All orders will be shipped by Massdrop.

Estimated ship date is Nov 27, 2017 PT.

After the drop ends, payment will be collected. To deliver the best value to the group the request will then be submitted to the vendor up front, making all sales final. Be sure to check the discussion page for updates.

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