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BellariHA540
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Music Hall - Bellari HA 540 mk2- Class A Tube Headphone Amp

Bellari HA 540 - Class A Tube Headphone Amp

Music Hall - Bellari HA 540 mk2 - Class A Tube Headphone Amp

The HA540 mk2 is a lush sounding 12AX7 tube headphone amp running 150 regulated volts to the tube plates with plenty of gain and is uniquely capable of driving headphones rated from 8-2000 Ohms. Having two separate inputs, it’s brilliantly designed to work equally well with different source components. It will produce superb clarity when connected directly to a CD player, computer, phone or DAC. A zero-feedback design guarantees a smooth natural analog response. There is a definite weight to the audio quality, in the sense that the music feels like it has genuine power driving it. The HA540 mk2 will be the component that kicks your music up a notch, and gets you addicted to this hobby.

In a world where headphone amps can cost anywhere from $99 to $7000 it’s hard to find honesty in what is a real true improvement in build quality or sound. How can you read through the online reviews to get a good idea of what to buy when it’s clear that some reviews are simply paid advertisements and other reviews don’t take into account the full story, personal experience, or product knowledge. What I can say honestly, is that the HA540 mk2 is hand-built in Salt Lake City, UT by people who have been in the industry for a few decades. They have seen it all, from companies selling the equivalent of snake oil and charging outrageous amounts of money for it, to straightforward honest companies that have unfortunately fallen by the wayside.

The HA540 mk2 is a true audio bargain for its build and sound quality. It has the lowest amount of ear fatigue of any headphone amp we have heard at any price.

Bellari products are all hand-assembled in the USA.

FEATURES:

  • Input impedance: 47k Ohms
  • Output impedance: 16 Ohms
  • Max output level: +15dBv @ 1kHz at .1% dist.
  • THD: .05% @ 1kHz
  • S/N ratio: >80dB unweighted
  • Indicator: 1 power LED
  • Max output power: up to 500 mW/side, 1 w/stereo (@16 Ohms)
  • Frequency response: 5 Hz - 30 kHz
  • Phase shift (in to out): 0 dB
  • Crosstalk: - 75 dB
  • Headphone impedance: 16 Ohms - 2000 Ohms
  • Max input level: +15 dBV

SPECIFICATIONS: 

technical specifications
input impedance
47k Ohms

output headphone impedance
8 to 2,000 Ohms

max output gain
19.6 dB

thd
.04% @ 20 Hz-20K Hz, at 1V RMS

s/n ratio
>80 dB unweighted

max output power
332 mW/side, 664 mW

Stereo (@30 Ohms)
frequency response
6 Hz – 51 kHz /- 3 dB

phase shift (in to out)
0 dB

crosstalk
– 75 dB

headphone impedance
16 Ohms – 2000 Ohms

max input level
+15 dBV

input connectors
low: RCA, 3.5mm stereo

high
RCA

outputs
1 x 1/4″ TRS stereo jack
1 x 3.5 mm TRS stereo jack

power
15 VDC – 700mA

tube
12AX7

product specifications
Dimensions (W x H x D)
6″ x 2.5″ x 5.4″

Weight
2 lbs.

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