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A Hong Kong made 200-watt guitar amplifier that can be picked up with one hand. Massive power that can fit into a backpack.
53 backers pledged HK$ 236,370 to help bring this project to life.

About

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HK$ 236,370

53

What is a prototype?

A prototype is a preliminary model of something. Projects that offer physical products need to show backers documentation of a working prototype. This gallery features photos, videos, and other visual documentation that will give backers a sense of what’s been accomplished so far and what’s left to do. Though the development process can vary for each project, these are the stages we typically see:

Proof of Concept

Explorations that test ideas and functionality.

Functional Prototype

Demonstrates the functionality of the final product, but looks different.

Appearance Prototype

Looks like the final product, but is not functional.

Design Prototype

Appearance and function match the final product, but is made with different manufacturing methods.

Production Prototype

Appearance, function, and manufacturing methods match the final product.

4d3279378c7aad680e06cc89e125a272 original.jpg?ixlib=rb 2.1

Prototype Gallery

These photos and videos provide a detailed look at this project’s development.

EXTREMELY COMPACT & PORTABLE

A 200-watt guitar amplifier that can be picked up with one hand. Massive power that can fit into a backpack. Truely portable high-voltage tube distortion tones that every guitar player has dreamt about. Well, the dream is finally here. 


GA1.1 Demo

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by Jackel Pun - GA1.1 Metal Demo

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 by Jeffrey So - GA1.1 Clean Demo

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Let's get into the details..

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High Voltage Class-A Tube Preamp

The GA1.1 uses full analogue circuitry in the pre-amp section. Equipped with two 12AX7 and one 12AY7 tubes, provide everything from crispy clean to aggressive distortion tones for any style of music. 

Three Channels provide completely different tonal options.
Channel 1, from clean to overdrive.
Channel 2, from clean to metal.

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Channel 3 from overdrive to metal.

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Comp, Thick, Deep, Focus, Boost

"Deep" switch provides more bass distortion while 
"Focus" rolls off the bass and increases high mid harmonics.
"Thick" is dedicated to channel 3 and increases the rich, mid harmonics that fit the demanding tone of modern metal.
"Comp" decreases amp headroom in order to provide a tube tone compressor.
"Boost" which sends a hotter signal to the output tube, resulting in a fuller harmonic and saturated tone.

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Digital Tone Control

The 2x5 bands digital tone control for channel 2 and 3. Active 5 bands (+/- 8db) instead of the traditional 3 bands to fit the creativity of modern guitar players.

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200 Watts 2 Channels Class-D Power Output

Class-D amplifier provides a wide audio frequency response and is extremely sensitive to transient attack and punch. Different from traditional tube power sections, the GA1.1 provides a more massive low-end punch and crispier high-end detail. And most importantly, it doesn't degrade over time so no service is needed. 

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3 Cabinet Simulator in all output channels

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Cabinet simulator provides three different speaker models. Not only can you send these cabinet-simulated signals to your audio interface or a PA system, but also connect your passive hifi speakers to the "Main Speaker" output. That means, any speaker can be used as a guitar cab. 

No bass player in the band? No problem!
The "Sub Speaker" output provides various low-pass filters, it is designed to connect to a bass cabinet, in order to provide a sub woofer to your guitar tone. This is where the name of the amp comes from. Of course, you can still connect the "Sub Speaker" output to another guitar cabinet, or another hifi speaker if you think 100 watts is not loud enough to disturb your neighbours...


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Noise Gate

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Single-knob-controlled noise gate that is triggered (side chain) by your guitar pickup output to control the distorted output signal. Since the clean guitar signal has more dynamics than the heavy distortion signal, it is extremely effective and more sensitive than most noise gate effect pedals.


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Effect Loops

2 separated Effect Loops for "main" and "sub" outputs, can be defeated by foot switch.


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Balanced Line DI Output

Electronics-balanced line DI output for recording or PA system. Independent cabinet simulator for this output.


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DC 9V Power for Effect Pedals

Low noise linear regulated DC 9V (1000mA) output on the back panel of the amp and the remote foot switch. 


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Check out our website and see what did friends say?
Check out our website and see what did friends say?

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Available in two Colours - Black & White

White body with Maple side panel

Black body with Walnut side panel

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Dimension

32cm(w) x 7.5cm(h) x 16.6cm(d) *excluding knobs and plugs

Weight
2kg (estimated)

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6 Button Foot-Switch with 9V DC Output

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Pick Design - Black or Transparent

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Risks and challenges

Our audio engineer has worked with professional musicians for more than 10 years and has amassed knowledge and experience from working on a wide diversity of audio projects. He has extensive experience of recording studio gear servicing, modifying guitar amplifiers, and repairing equipments such as SSL 4000 mixing console and vintage Neumann microphones. For the GA1.1 we spent more than two years in research before production began on our first prototype one year ago. 

During the past year, the GA1.1 has undergone thorough testing, checking and constant adjustment thanks to the input and opinions of more than 50 guitarists and musicians. All this has been done to ensure that the GA1.1 is as user friendly and tough as you need it to be as well as meeting and exceeding the demands of all types of guitar players from amateurs to professionals alike. 

If the GA1.1 receives a large number of backers, then production time may be extended as it will take some time for the metal enclosure to be manufactured so we can bring you the best amp for your money.

We are working with select, reliable suppliers who have been chosen for the quality and durability of their components. As Hong Kong will taking some time off as it celebrates Chinese New Year in February, we will be stocking up on parts for the GA1.1 to avoid shortages and shipping delays before the post office closes for the holiday.

The production and assembly of the GA1.1 will take place in Hong Kong under supervision by Headache Sound Electronics where all units will be thoroughly tested in our workspace before shipping out.

Backers will receive regular updates during the production process. Your amplifier comes with a one year warranty, with tubes warrantied to six months.

Thanks and Acknowledgements:
Endless thanks to those friends and family who have supported us throughout this journey. Especially to the musicians who devoted hundreds of hours of their time giving us professional advice and incredible support as we worked to give birth to the GA1.1. And last but not least, our thanks to you for supporting our Kickstarter campaign.

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Support

  1. Select this reward

    Pledge HK$ 20 or more About US$ 3

    Show me Love. <3

    Show your Thumb =b
    You will receive a personalised thank you note and a special thanks on our web page (www.headachesound.com). Feel free to pledge more.

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  2. Select this reward

    Pledge HK$ 80 or more About US$ 10

    Custom Laser Cut Acrylic Guitar Pick

    HeadacheSound Laser Cut Hand Grind
    Thickness: 2 mm
    Size: Jazz III
    Colour: Random

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    5 backers
    HK$
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  3. Select this reward

    Pledge HK$ 500 or more About US$ 64

    6 Button Foot-switch (64USD)

    Custom 6 button foot-switch for GA1.1
    Cable Length: 7m

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  4. Reward no longer available

    Pledge HK$ 4,800 or more About US$ 614

    Super Early Bird - White Colour (618USD)

    1. Get 1 unit of GA1.1 Guitar Amp
    2. Universal Power Adaptor
    3. Soft Carrying Bag
    4. Custom Laser Cut Acrylic Pick
    5. User Manual

    This is 33% savings on the HK$7,200 (928USD) retail price.

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    Ships to Anywhere in the world
    Reward no longer available 19 backers
    HK$
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  5. Reward no longer available

    Pledge HK$ 4,800 or more About US$ 614

    Super Early Bird - Black Colour (618USD)

    1. Get 1 unit of GA1.1 Guitar Amp
    2. Universal Power Adaptor
    3. Soft Carrying Bag
    4. Custom Laser Cut Acrylic Pick
    5. User Manual

    This is 33% savings on the HK$7,200 (928USD) retail price.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    Reward no longer available 19 backers
    HK$
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  6. Select this reward

    Pledge HK$ 5,200 or more About US$ 666

    Early Bird - White Colour (670USD)

    1. Get 1 unit of GA1.1 Guitar Amp
    2. Universal Power Adaptor
    3. Soft Carrying Bag
    4. Custom Laser Cut Acrylic Pick
    5. User Manual

    This is 28% savings on the HK$7,200 (928USD) retail price.

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    Ships to Anywhere in the world
    3 backers
    HK$
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  7. Select this reward

    Pledge HK$ 5,200 or more About US$ 666

    Early Bird - Black Colour (670USD)

    1. Get 1 unit of GA1.1 Guitar Amp
    2. Universal Power Adaptor
    3. Soft Carrying Bag
    4. Custom Laser Cut Acrylic Pick
    5. User Manual

    This is 28% savings on the HK$7,200 (928USD) retail price.

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    Estimated delivery
    Ships to Anywhere in the world
    1 backer
    HK$
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  8. Select this reward

    Pledge HK$ 9,600 or more About US$ 1,229

    Duo White (1,238USD)

    1. Get 2 units of GA1.1 Guitar Amp
    2. 2x Universal Power Adaptor
    3. 2x Soft Carrying Bag
    4. 2x Custom Laser Cut Acrylic Pick
    5. 2x User Manual

    This is 33% savings on the HK$14,400 (1,857USD) retail price.

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    Ships to Anywhere in the world
    1 backer
    HK$
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  9. Select this reward

    Pledge HK$ 9,600 or more About US$ 1,229

    Duo Black (1,238USD)

    1. Get 2 units of GA1.1 Guitar Amp
    2. 2x Universal Power Adaptor
    3. 2x Soft Carrying Bag
    4. 2x Custom Laser Cut Acrylic Pick
    5. 2x User Manual

    This is 33% savings on the HK$14,400 (1,857USD) retail price.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    0 backers
    HK$
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  10. Select this reward

    Pledge HK$ 9,600 or more About US$ 1,229

    Yin-Yang Package

    1. Get 2 units of GA1.1 Guitar Amp (one Black one White)
    2. 2x Universal Power Adaptor
    3. 2x Soft Carrying Bag
    4. 2x Custom Laser Cut Acrylic Pick
    5. 2x User Manual

    This is 33% savings on the HK$14,400 (1,857USD) retail price.

    Less
    Estimated delivery
    Ships to Anywhere in the world
    2 backers
    HK$
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Funding period

- (32 days)