Name: Matrix M-Stage HPA-3U+ DAC/Amp
Brand: Matrix
SKU: d31333599ec1928ae7b44a0721e7f26f

Matrix M-Stage HPA-3U+ DAC/Amp

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01 / 09

Matrix M-Stage HPA-3U+ DAC/Amp

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Audiophile

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Product Description

An upgraded version of the original Matrix M-Stage HPA-3U, the HPA-3U+ headphone amplifier boasts a built-in USB DAC and a single-ended headphone output. It’s equipped with an XMOS U-series asynchronous USB chip and a Cirrus Logic CS4398 D/A chip, and supports a 24-bit/192kHz sample rate, plus DSD 2.8 MHz and 5.6 MHz Read More

Class A Headphone Amp & USB DAC

Specs

Line output

Signal-to-noise ratio: > -112 dB at 20 Hz – 22 kHz A-weighted
THD+N: < 0.0003% at 1 kHz 1 Vrms A-weighted
Frequency response: 20 Hz – 20 kHz (+0.01 dB / -0.04 dB
Output impedance: 51 ohms

Headphone output

Signal-to-noise ratio: > -112 dB A-weighted
THD+N: < 0.0003% at 33 ohms 90 mW 1 kHz A-weighted
Frequency response: 20 Hz _ 20 kHz (+0.01 dB / -0.04 dB)
Output impedance: 0.2 ohms
Output power (at THD+N = 0.01%): 2800 mW at 33 ohms, 420 mW at 300 ohms, 210 mW at 600 ohms

USB input

USB chip: XMOS U-series asynchronous USB chip
D/A chip: Cirrus Logic CS4398
Signal-to-noise ratio: > -110 dB A-weighted
THD+N: < 0.0009% at 1 kHz A-weighted
PCM sample rate: 16 – 24 bit / 44.1, 48, 88.2, 96, 176.4, 192 kHz
DSD sample rate: DSD 2.8 MHz, 5.6 MHz (DoP and ASIO native)
System support, Windows: XP, Vista, 7, 8, 8.1 systems need to install the driver supplied
System support, Mac: OS X 10.6.4 and above have native support, do not require a driver
System support, Android devices: Can be used with most via the OTG cable
System support, iOS devices: Can be used via the Lightning-to-USB camera adapter

Power

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

Physical

Gain control: 5 = 5 dB, 10 = 10 dB, 20 = 20 dB
Dimensions, L x W x H: 11.2 x 5.6 x 1.9 in (29 x 14 x 5 cm)
Weight: 3.7 lbs (1.7 kg)

Included

Driver and user manual disk
Power cord
USB cable
Massdrop 1-Year Limited Warranty

Shipping

All orders will be shipped by Drop.

Estimated ship date is Aug 20, 2018 PT.

After this product run ends, payment will be collected and orders will be submitted to the vendor up front, making all orders final. Check the discussion for updates on your order.

Recent Activity

ElectronicVices

Your Nyquist assertion is accurate, I didn't mean to be vague. By "at that level" I meant greater than the general threshold of human hearing at 20kHz. I've had gear claiming 40khz and don't really notice much on the top end. The only consistent benefit among properly sourced hi-res I've been able to discern is a clearer fundamental, slightly better transients and a greater sense of the recording space (close mic, live, small venue, etc..). Again things probably not worth it to most folks, I will argue CD quality beats lossy compression until I die however.

Calaverasgrande

actually, due to the Nyquist theorem, in the best case scenario a device with 192kHz samplerate can only playback up to 96kHz. You effectively need the sample rate to be twice the highest frequency you wish to produce. The higher samplerates such as 96k and 192k are frequently utilized not to garner ultrahigh frequency information, but rather to move the corner frequency of the antialiasing filter, and the aliasing artifacts themselves out of the range of human hearing. This is not because you actually hear the filter. But it can induce phase smear in the top end which may sound brittle and harsh. I actually own equipment with 192k samplerate, and 50k bandwidth. Even with my crappy hearing I can hear a benefit. Mostly a very clear treble with a distinct edge on details, without sounding liek a treble knob has been cranked up.

ElectronicVices

Hertz is a measure meaning "cycles per second". In the case of 96k/192k that is referencing how many digital sample cycles were captured per second of recording, either from a different recording/tape or live performance. 20 Hz to 20 kHz is the range of sound frequencies the average human being can hear. In this case that is the rise and fall of the audio sound wave. Bass frequencies are longer so it takes them more time to complete a cycle , hence the reason bass frequencies are on the low end of the range. While a 192kHz sampling frequency does enable the capturing of audio frequencies at that level it is not the sole benefit. I am certainly not touting hi-res audio for all but having spent 15 years or so playing with the different formats of hi-res I will say I can generally hear a slight positive difference. Definitely wont be worth the extra expenditure to everyone or in all cases. A lot of "hi-res" tracks offered have questionable sources.