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  • Bellari  HA540 Pure Class A Stereo Headphone Amplifier
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Bellari HA540 Pure Class A Stereo Headphone Amplifier

by Bellari

List Price: $299.00
Price: $239.00 & FREE Shipping. Details
You Save: $60.00 (20%)
Only 1 left in stock.
Sold by Amazing Deals Online and Fulfilled by Amazon. Gift-wrap available.
  • Low and High Inputs
  • 12AX7 tube output
  • Drives headphones from 16-2k Ohms
  • Zero feedback Class-A, all tube headphone amplifier
  • Extremely detailed, rich, bold sound
10 new from $239.00 1 used from $246.92

Frequently Bought Together

Bellari  HA540 Pure Class A Stereo Headphone Amplifier + Mullard 12AX7 Preamp Tube + Tungsol 12AX7 Tube
Price for all three: $267.85

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Technical Details

  • The Bellari HA540 is a audiophile grade headphone amplifier. The all class A signal path ensures smooth clean analog audio. The 0 feedback design means smooth natural analog response. It features 2 input paths and high gain for MP3 players, ipod, etc and a low gain path from audio selectors, mixers, satellite receivers, etc.. It also features direct into the tube grid coupling for no loss or distortion. The unit is included with a universal powersupply for use most anywhere in the world.

Product Details

  • Shipping Weight: 2 pounds (View shipping rates and policies)
  • ASIN: B004FI6AKW
  • Item model number: HA540
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (23 customer reviews)
  • Date first available at Amazon.com: October 9, 2010

Product Description

Bellari HA540: A Gorgeous Class-A All-Tube Headphone Amp The Bellari HA540 was built for those of us who have lusted after tube headphone amplifiers only to be dismayed at the enormous expense. The HA540 is an honest to goodness zero feedback Class-A, all tube headphone amplifier in a very compact chassis. How good can it be at this price? Excellent, actually! Just like Bellari's outstanding phono preamps, the HA540 offers an extremely detailed, rich, bold sound with a surprisingly reasonable price. The HA540 is a very flexible design with a lot of great features that should be standard on every headphone amp. The first great feature is the visible 12AX7 tube! This gorgeous, capable amp drives headphones from 16-2k Ohms and offers both 1/4" and 1/8" outputs. Input selection is also quite extensive, with both an RCA and a Mini-Jack input (selectable). The HA540 is also designed to extract maximum performance from any source with two types of inputs to match any source. We love the sound from this all-tube headphone amp, and we know you will, too! Two Types of Inputs To ensure the best sound possible from any source, the HA540 has two different input types, Low and High. High is for devices with robust output stages like full-size CD players, tape outputs from a preamp or receiver etc. Low is a special input which offers greater gain for portable devices or any device that doesn't have a robust output stage. Why is this necessary? Imagine the HA540 sitting on your desk at work. The High input is connected to your high-quality USB DAC and the Low input is connected to your iPod, XM Radio tuner or portable radio. The two types of inputs can be selected from a top panel selector. *NOTE: There are two Low connection options, Mini-Jack and RCA. This allows either a Mini to Mini or a Mini to RCA cable to be used. These are either/or inputs, please don't use them simultaneously. All Bellari products are manufactured in the US

Customer Questions & Answers

Customer Reviews

Choice of tubes make a difference in the sound of the Bellari HA540.
Citizens Against A Tidy World
My other phones include the Sennheiser HD598 and AKG Q701, and they are great with this amp also.
Raybird
The sound was punchy with extended bass and a smooth but detailed sound.
TomVette

Most Helpful Customer Reviews

34 of 35 people found the following review helpful By Citizens Against A Tidy World on March 28, 2011
Though I'm the satisfied owner of a Fiio E9 headphone amp, I own Ultrasone PRO750 headphones which are much like Grados only with more robust bass. The Ultrasones sound dry on some recordings, so when I found the Bellari HA540 Class A tube headphone amp at a steep discount, I purchased it. Since my integrated amp has two tape loops, I can connect the Fiio and the Bellari simultaneously.

The Bellari is manufactured in the USA by a division of Rolls. Readers might be familiar with Rolls through their HA43PRO headphone amp, which is often used to connect to the RCA outs of a TV. The Bellari uses one tube, a 12AX7, which is very common and easily sourced. Rather than use the stock tube, I purchased a Mullard reissue.

The Bellari is a Class A amp, but is barely warm to the touch. It's an OTL design: there's no output transformer. In practical terms, that means your headphones are providing the load on the tube. Headphones with too low an impedance could overdrive the amp. A headphone amp is the perfect application for an OTL design because headphones rarely have impedances as low as loudspeakers, which are mostly in the 4 to 8 ohm range.

The lowest impedance headphones I own are the Denon AH-D2000 at 25 Ohms, and the Bellari can handle it--but that's about as low an impedance as I'd want. The Ultrasone PRO 750 isn't very efficient, but the Bellari has lots of gain--it can drive the Ultrasones into pain territory without trying. It has two gain settings: a low setting for iPods, and a high setting for typical line out devices like CD players or the tape loop of a preamp, integrated amp, or receiver. The low and high designations refer to the input voltage, iPods having lower output than CD players or tape loops.
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16 of 16 people found the following review helpful By Samuel Missimer on March 28, 2011
Either you get or don't get the value of tube amplification. I'll leave that debate for others.

Headphone amps really do 'pull' the sound out of a pod, and I've used and enjoyed a battery-powered 'Total Airhead' for many years now. Unilke battery devices, tubes need more juice, so this is an 'at home' gizmo, although it is small and quite portable for road warriors.

If you are ripping your music in lossless formats for use on I-Pods, I-pads or other portable devices, and enjoy a good pair of headphones, this little box is worthy of your attention.

When you break audio out of a pad/pod through the line-out dock connector, this will drive your headphones with gobs of headroom to spare, and deliver a pretty amazing listening experience. Sounds is like you had mud in your ears without it.

I use this with both lower-high-end Grado's and Dennon's and am delighted with the transparency, image integrity and overall 'musicality' of the experience.

I use these in my 'reading spot', a comfortable chair with strong full-spectrum light and can really get 'lost' in the splendor of the sound.

I've yet to play with swapping out tubes (yes, you can play around with a variety of Ax7 options to 'tune' your own sound) but can happily report that this amp gives a listening experience far beyond the fiscal investment.

The gain is quite high, and the volume control could have been trimmed differently (I never, ever move it past 1/4) for more precise adjustment, but that's nit-picking. This, a pod and any good headphone set will give you sonic satisfaction.

I've owned other audio devices from Rolls (Bellari's alter-ego) and had good service from them, and expect the same from this.
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7 of 7 people found the following review helpful By David Orion on April 19, 2012
Verified Purchase
I own a pair of Denon AH-D5000 headphones Denon AH-D5000 Reference Headphones. My primary use of these headphones is with my digital Yamaha Clavinova CLP 380 piano. On a high-quality Marantz receiver, I could easily get the volume level very loud on my headphones so that no further amplification was needed. However, at the very highest volume on my piano, these headphones weren't very loud. So I realized I would need some type of amplification for the headphones. Initially, I purchased a Pro-Ject Head Box II headphone amplifier Pro-Ject: Head Box II Headphone Amplifier - Silver. Unfortunately, even with the volume on both the piano and headphone amplifier turned all the way up there wasn't much increase in overall volume. I considered buying a pre-amp at this point, and then I came across reviews of the Bellari HA540 Headphone Amp. I decided to return the Pro-Ject amplifier and purchased the Bellari HA540 Headphone Amp instead. Voila, using the low gain input on the headphone amplifier I was able to achieve an extremely loud volume at half way on both the piano and headphone amplifier. Also of note is the fact that connecting the Bellari HA 540 Headphone Amp to the Marantz receiver I was able to achieve blaringly loud volumes.

As others have noted, changing out the 12AX7 tube is quite easy and well worth it. The Ruby tube it comes with is ok, however I found the Mullard Reissue to be the best, with a Tungsol tube coming in 2nd.
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9 of 10 people found the following review helpful By agnostic on October 1, 2011
Verified Purchase
This is a great product. I have dozens of pairs of headphones, and many different headphone amps/dacs, and this one is staying with me. Especially great for those of you who want to try a tube amp, want to buy domestic, and don't want to spend a fortune. Sounds fantastic, with that little bit of tube warmth. The only negative is the headphone jack on the rear of the unit, but you can work around that!
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