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  • The Pan Am - Black
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The Pan Am - Black


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  • Vacuum Tube Headphone Amplifier
  • User Replaceable Vacuum Tubes
  • Internal High Resolution USB Digital to Analog Converter
  • Capable of 24 Bit / 96 kHz audio playback via USB
  • RCA and 1/8" Analog Inputs
9 new from $878.17

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Technical Details

  • Powered via included wall power adapter
  • Also can be powered by accessories: The PassPort and The Gateway

Product Details

  • Product Dimensions: 4.1 x 3.8 x 1.2 inches ; 11 ounces
  • Shipping Weight: 5 pounds
  • ASIN: B009VMT1GM
  • Item model number: ALO-1425
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (3 customer reviews)
  • Date first available at Amazon.com: April 26, 2013

Product Description

Your headphone amp should be as fun as the music you hear through it.  The PanAm is designed to bring that experience to your desktop.  Whether rolling tubes, flipping between source options, or enjoying a concert video, this versatile amplifier fits nicely in a compact footprint that is perfect for your home or office audio escape.

Customer Reviews

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Most Helpful Customer Reviews

6 of 7 people found the following review helpful By J. E. Stachowicz on August 27, 2013
Verified Purchase
This is my first foray into tube headphone amp's. After reading reviews and the ALO website, I settled on the Pan Am and could not be happier. It is an amazing little unit!

I don't have much experience with tube units but this little unit is phenomenal. First off, it's very compact - probably only 3.75 X 4.5 inches in size. Even with the 2 tubes mounted the unit is only 3 inches tall. However, do not let the small size fool you. This thing is a tiny box with big sound.

I have a NuForce Icon HDP amp/dac and s 10 yr. old Meijer-Corda Mk. II headphone amp. In comparison to the NuForce, the Pan Am definitely has a fuller and richer sound, while still producing crisp and sparkling highs. I haven't gotten into "Tube Rolling" (i.e. replacing tubes to modify/alter the sound) with the Pan Am. The tubes included are outstanding and give me everything I want from the sound. The depth and clarity of sound is truly unbelievable. My Sennheiser HD650 headphones have never sounded as good as when paired with the Pan Am.

The ALO Pan Am, in all honesty, is worth every penny. I cannot believe how much I am enjoying my music library played through the Pan Am. I could not be more pleased with my purchase!!
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So the Pan Am from ALO Audio. This little guy is pretty dang impressive. An excellently-built, functioning desktop solution that is pretty easy on the eyes too! For the record, I've got the whole stack - Pan Am, Passport, and Gateway. Haven't done much comparison between the two power supplies yet.

As for the sound, the presentation is not glaringly tilted towards the bright or dark end of the spectrum. In a word: neutral. Now of course the tubes you pick can change that, but it's nice to know that with a conservative tube like the Yugo 6HM5 or RTC, you're starting pretty close to neutral.

I think that DAC implementation is equal to the ODAC. Very capable and revealing from the 256 MP3s I've tested all the way up to the 24 bit higher res stuff. No complaints here.

Now the amp. Power, power, and more power! Even with the ZMF V1s, high gain yields plenty of authoritative power with a dynamic punchy bass, lush mids, and nicely-detailed-but-never-sibilant treble. I also appreciate the versatility in that the Pan Am still plays well with lower impedance cans like my Grados and D2000s. I'm very impressed with it's synergy with the DT880 Pros as well. The tubes take the edge off their treble making them one of my favorites.

Tubes. Woohoo! I've got the Mullards, Siemens, RTCs, Voskhods, Yugo HM5s and Sylvania HM5s. So far the Mullards take the cake with the Yugos and Voskhods in at a close second. The Mullards rich lush bass and lower mids are unmatched out of this collection. Now the RTCs do treble better, but for me, I'll sacrifice a little extension for some thump.

Overall I'm very happy with this little setup. It's versatility, size, form factor, and tube-rolling options make it pretty dang satisfactory. Consider upgrade-itis cured... for now.
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By R H on April 16, 2014
Verified Purchase
I've had this for a couple of months and have done enough listening to fully burn everything in. The sound is great with the supplied tubes. I know some like to swap them out - I'm content with the O.E. ones.

I purchased the Pan Am because I wanted tube amplification with a D/A converter for headphone listening. There isn't a lot out there that combine those two things. I really liked the form factor & appearance of this, so I decided to take the plunge and buy it even though it had no reviews at the time.

I hear popping from time to time, but that's to be expected with tube amplifiers (and honestly part of the reason I wanted it). It's not obtrusive and I only notice it during silence (between tracks or when music paused). When you turn it on, the music softly gets louder as the amplifier warms up. The two tubes will slowly start to glow but never get bright. Music sounds warm and reminds of listening to Frampton Comes Alive records in the 70s on a bean bag chair.

Construction feels sturdy. The volume knob is a smooth-turning one, not ratcheting. The rear of the device has a switch that allows you to select between multiple inputs: USB, L/R RCAs, and line in. The front has two headphone outputs, one for each size plug. The flexibility with inputs and outputs is nice and contributed to my decision to buy, in case I want to switch my setup around down the road.

They send you two black steel metal caps to cover the tubes when you're not listening. It makes for an attractive display piece when you're not using it, something you're not afraid to keep on the desk.

All in all I really like it. I thought it was overpriced when I first saw it, but after researching the rest of the "market" I think it's actually fairly priced.
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