Enjoy the rich, smooth sound of a vacuum tube amplifier. Connects via Bluetooth to your iPhone, Android device or direct aux inputs.
Our Kickstarter campaign is coming to a close, but you can still get a BlueTube Audio Amplifier. Head over to www.bluetubeaudio.com for more info and to place an order.
Thank you all backers!
Thanks to you, the BlueTube Audio Amplifier was successfully funded!
This Kickstarter page will be locked on December 21, 2012. To follow our continued progress, follow us on Facebook.
The Crosby Press - "If you listen to a lot of Carly Rae Jepsen, this is probably not terribly exciting news, but if you’re a serious fan of music, good analog sound can fundamentally change your relationship with your favorite bands & singers."
Leveled - "...clean aesthetic and solid body while maintaining a vintage feel."
BB-Blog - "Wow. Just look at this little beauty – vacuum tubes + digital technology, all wrapped in a seriously yummy wood case."
CON.CA - "What sold me on the BlueTube Audio Tube Amplifier was not the true-to-life sounds it wants to achieve, but the stunning good looks, the soft-glow of the tubes and that lovely blue power button."
Apartment Therapy - "Joining the likes of Joey Roth and Ben Warhlich, the ClockOS Team merges the steam punkappeal of a hand-built vacuum tube amplifier (they glow!) with Bluetooth enabled wireless audio, all encased inside a handsome walnut and cherry wood case ready to impress whether on or off..."
Android Rundown - "My first reaction to seeing this was mostly amazement. The BlueTube looks very classic and yet has subtle touches of modernity that make it one of the most attractive amplifiers I have ever seen.... The wood encasing is timeless and when paired with the optional speaker combo the BlueTube amp would make an incredible addition to anyone’s home or office.... I would strongly consider purchasing these for my home office. Seeing as the BlueTube amplifier will probably outlast me.."
SoFreakingCool.com - "...audio quality has been going the quick & cheap route since the compressed sound of the MP3 came into fashion. The BlueTube Audio Tube Amplifier looks to reverse that trend with a finely crafted, hand-built tube amplifier that fills any room with rich sound and classic aesthetics."
A tube amplifier that looks as impressive as it sounds.
- Solid 3/4" walnut and cherry hand-rubbed, waxed enclosures
- True stereo output (8 watts per channel)
- Internal BlueTooth receiver with voice command setup, 2 hardwired inputs (Aux1- 1/8" jack Aux2- RCA jacks)
- Class A push-pull amp for outstanding sound reproduction
- Optional titanium full range speakers in matching walnut/cherry cases
- High quality "easy-connect" spring loaded speaker connections
- USB charging port to power and charge portable audio players (iPhones, Android Phones, MP3 players, etc)
True analog sound, the way it was supposed to be
This hand built tube amplifier will look amazing and sound unbelievable in your office or home. The 3/4" thick walnut and cherry enclosures are hand rubbed with linseed oil, then waxed and are reminiscent of audio equipment built 50 years ago by craftsman. The retro feel of the exposed tubes distinguish a tube amplifier from any other type of audio player. When the lights are turned down, the tubes themselves produce a warm glow that makes this sound-system stand out from all the rest. This is a system you will be proud to show and a system that that could well be in your family for generations...
Tube Amplifiers History
Vacuum tube amplifiers are an old technology, invented more than 100 years ago. The silicon transistors used in most amplifiers today were invented in the 1960's and very rapidly replaced vacuum tubes in almost all audio products.The solid-state amplifiers have a few notable advantages over vacuum tube amplifiers:
- much smaller and lighter;
- usable in low power situations, such as battery-powered radios;
- much improved energy efficiency;
- no warm-up time (tube amplifiers need to be warmed up before use).
So on the face of it, solid-state amplifiers would seem like a much better choice, but that's not the whole story...
Tube amplifiers have a more refined sound, very different from a transistor amplifier. The tone of a vacuum tube amplifier is softer, warmer and more natural. Vocals are more articulate, the separation of the instruments is much more defined and the entire listening experience is greatly enhanced.
There is only one reason to invest in a tube amplifier...To thoroughly enjoy your music as it was intended to be heard.
The Titanium full-range speakers will bring your music to life. The speaker frame is constructed of cast aluminum for maximum rigidity.
Speaker Specs 25 watt / Voice Coil 1" / Znom 8 ohm / Frequency Response 70-20,000 Hz / Diameter 4" / Titanimum cone / SPL 87db 1W/1m
size - 6.5" Power Handling (RMS) - 50 watt Power Handling (Max) - 100 watt Impeadance - 4 ohm Frequency response 35-800 hz Sensitivity - 83db 1w/1m
The vacuum tube circuit we have incorporated in the BlueTube Amplifier is a design that has been around (and still around) for over 30 years. It is a proven "Class A" amplifier design that has been reviewed and compared to other vacuum tube systems costing 3 times as much. We decided when designing our amp that in this day and age lots of music collections are in a digital format on a device that has BlueTooth capabilities. We incorporated a Class 2, 16-bit A2DP BlueTooth radio for true stereo output. We also included voice command setup so there are no buttons to press on the amp to set up the BlueTooth connection. Another decision we made is to include a USB charging port on the unit so you can listen to your music and recharge your devices at the same time.
In designing the case we wanted an enclosure that simply looked awesome. Ben,our master craftsman, hand selects 3/4" cherry and walnut lumber, laminates them together and hand sands each board. After constructing the enclosures, everything is hand-rubbed with linseed oil and finished off with 3 coats of wood wax that is then buffed to a smooth and durable finish.
The amp and optional speakers feature gold-plated, spring-loaded speaker connectors that allow easy connection.
Our goal was to produce a vacuum tube amp that sounds awesome, looks great, and will outlast its owner. We believe the BlueTube amp meets all 3 of our objectives. This is a piece of equipment that won't end up in a land fill someday, but will be passed down through generations.
Pictures, Pictures, Pictures and more Pictures
Not enough pictures? Okay here are some from every angle
Still haven't had you fill of photos? Okay, here are some of the design and manufacturing process
Still haven't had enough?
Check out our website here for all the pictures or send us a message. Also the FAQ below may answer any remaining questions.
Are stereo tube amplifiers really better?
The only reason to invest in a tube amplifiers is simple: To listen to music as it was intended to be heard and to enjoy every nuance in the recording.
Recorded media of today (MP3 and CDs) is compressed and has lost much detail, how does the Blue Tube amp compensate for this?
Why does the BlueTube amp have a BlueTooth option? Doesn't BlueTooth compress the music even more?
A lot of people will say that it is crazy to take a recording that's been compressed, run it though a blue tooth radio that compresses the music even more, then play it through an expensive vacuum tube amplifier. We have only one reply to this......Hearing is believing. Although your music will not sound quite as good as it will when plugged directly into the amp, it will still sound clearer and have the expression and emotional tone missing from a transistor amp. Regardless of what you feed into the BlueTube amp, it will sound clearer and more defined when it comes out of the speakers. And with BlueTooth you can control your selection of music and volume without ever getting out of your chair.
Why does the BLUE Tube Amp not have a bass or treble adjustment?
How long will the tubes last?
We predict the life of the tubes to be around 40,000 hours (1600 days or 4.3 years if run non stop) This increases to 25 years if run for only 4 hours a day every day.
Tube break-in period
Is 8-watt output enough power?
Why do the speakers have a single speaker instead of 2 or 3?
Why does it seem I can listen to my music longer?
Don't be surprised if you start listening to more music every day. Another advantage of the sound of a tube amplifiers is the minimizing of “listening fatigue”. The fast transient 'attack' characteristic of transistor amps may sound impressive at first, but after extended listening will produce listening fatigue. Analysts have attributed this fatigue to “transistor hash”, the tendency of transistor amplifiers to produce higher amounts of odd order harmonic distortion, and the tendency to emphasize sharp transients. Because vacuum tube circuits eliminate the transistor hash, you can listen to your BlueTube amp for hours at a time and enjoy the warm tube sound of your favorite music without listening fatigue.
Risks and challenges Learn about accountability on Kickstarter
The risk and challenges are minimal for this project. This is our second kick starter project we are introducing. Our last project was the ClockOS project (notice our name). We were able to deliver all rewards in a timely fashion and have continued to sell these unique clocks to individuals after the kickstarter program. Another great thing about our project is that everything is proudly made and hand-crafted right here in the USA. No offshore assembly or construction on our BlueTube amps.
As for the BlueTube Amplifier project:
- All the design work is done, we have multiple working prototypes and we have a finished unit. The reason we are seeking kickstarter funding is that we need high-quantity discounts to bring the price down on the systems. Please check out our webpage for more information about us. We are real people in the heart of America. We have published our address and even have a toll-free number if you would like to call and talk to us about the product.
I hope that you enjoyed looking at our project and that you decide to become a backer today!
- Adam and Ben
If backing international, Please note that the Prototype amplifier is 110Volts, However we will have a unit that is compatible with 230Volts for the rest of the world.
We gave the early backers a deal!