G1217 Project Starlight (Kit $150, Built $170, alu-chassis +$40)
- G1217 Project Starlight.jpg (123.53 KiB) Vist 57851 gange
Tube Headphone Amplifier - Optimized for headphones 16-300 Ohms
What the heck is Project Starlight? Well in short and to the point, she was designed to kick sand in the face of the affordable overseas offerings and other affordable tube amplifiers. Having to purchase an amplifier and then replace the majority of the parts to work properly should not sit well with anyone (we know the popular cheap designs well as we used to modify and fix them on a regular basis). So we went to the drawing board to see what we could do to not just make a quality affordable hybrid, but to make a damn fine hybrid that was ready to sing out of the box. Starlight is a Tube / Opamp hybrid capable of rolling opamps as well as countless 6 & 12V dual triode tubes. Stock output stage features quad 4562's and she sings like an angel. We even gave her Easy Set LED bias and a fully dedicated tube heater power supply supporting up to 1A! That means power hungry tubes such as the 12bh7, 6n6p and 6n30p are no problem. In fact Starlight outclasses and outfeatures EVERY SINGLE hybrid on the market in this price range and even well above its price point giving you the ability to tweak and tune to your desire. Best of all, no need to frankenstein her with modifications. The parts you may want to play with later on such as opamps and tubes are easy to change without soldering!Features of Starlight:
• Designed for medium to low impedance headphones. Best suited for headphones 16-300ohm
• Line output for pre-amp use (volume controlled)
• Manual bias design with easy-set LED bias system, no multimeter needed
• Manual voltage setting with quick access through top cover
• Variable input gain with easy to swap module
• Capable of utilizing a wide range of 6v and 12v tubes. More options available with adapters (1A heater current)
• Three output impedance settings to dial in your Starlight
• Ability to run a pair (one per channel) or quad opamps (two per channel) for increased output
• Ability to roll several opamp types - pick what suits your ears best (we like the default LM4562 that we include)
• Lightning quick protection circuit with tube warm up delay
• Bright, under tube LED (you pick the color)
• Top quality components sourced in the US from reputable distributors. No gray market or counterfeit components that plague other manufacturers (designed for the long haul)
• Beautiful piano gloss black .096 thick double sided PCB in 2oz copper with top and bottom ground planes & gold wash. Will not bend or flex while inserting a tube
• Medical grade power supply included
• 5 YEAR WARRANTY on G1217 built amplifiers
• Shipped, built and kitted from the US
• vUS / Netherlands design team
For Advanced Tuners:
• Input capacitor section is drilled for multiple capacitor footprints. 2, 2.5, 3.5, 5 or 7.5mm spacing available
• Output capacitor section is drilled for 7.5mm
• Power supply capacitor section is drilled for 7.5mm
• Variable output resistance, selectable from 2.5 to 70ohm
Actual Project Starlight measurements:
• Opamp output stage / quad LM4562
• Power consumption: 7.2W peak.
• Power supply: 24VDC (0.3A peak)
• Input Resistance: 40k
• Input Sensitivity (6N23): 270mV (dependent on tube)
• Gain: 20dB (dependent on tube) Changed from the original higher 26dB specification
• Max Output voltage (no load): 7Vrms at 120ohm
• Output Resistance: Selectable 2.5, 34 and 72ohm
• Frequency Response: 15Hz – 80 KHz (-0.5dB) with 32ohm load
• Frequency Response: 4Hz – 230 KHz (-3dB) with 32ohm load
• Signal to Noise ratio: 91dBA (dependent on tube)
• Crosstalk: -87dB (dependent on tube and in most all cases, better!)
• THD: > 0.015% (dependent on tube)
• Suitable for: 16-300ohm Headphones
• Dimensions: 5.75L X 5W X 2.75H in inches
• Weight: Acrylic Chassis .65lb (without power supply) / Aluminum Chassis 1lb (without powers supply)
http://www.garage1217.com/new_website_007.htmG1217 Project Sunrise 3.1 (Kit $220, Built $255, alu-chassis +$40)
- G1217 Project Sunrise III.jpg (311.63 KiB) Vist 57851 gange
Tube Headphone Amplifier / Pre-Amp - Optimized for headphones 32-300 Ohms
Project Sunrise III... Where to start with this tried and tested beauty? Project Sunrise was our first amplifier design. She has sold all over the globe and has been reviewed, tested and loved for years. She was the first in a series of tweak-able hybrids which simply give so much more vs. the competition. She is what started all this madness for us! In 2012 we started offering the version II of this design pushing what we could do with the design further. Then in late 2013, beginning of 2014, Sunrise III arrived adding some nice features yet retaining the Sunrise sound. If you are looking for an amplifier that can really deliver specifically into lower impedance headphones then Sunrise III is for you. Overall an outstandingly musical amplifier with great power. Features of Sunrise 3.1
• Designed for medium to low impedance headphones. Best suited for headphones 32-300ohm
• Line output for pre-amp use (volume controlled)
• Manual bias design with easy-set LED bias system, no multimeter needed
• Manual voltage setting with quick access through top cover
• Variable input gain with easy to swap module
• Capable of utilizing a wide range of 6v and 12v tubes. More options available with adapters (1A heater current)
• Selectable output impedance per quick access jumpers located on the sides of the amplifier
• Lightning quick protection circuit with tube warm up delay
• Onboard RGB LED under the tube to dial in a color that suits you
• Top quality components sourced in the US from reputable distributors. No gray market or counterfeit components that plague other manufacturers (designed for the long haul)
• Beautiful piano gloss black .096 thick double sided PCB in 2oz copper with top and bottom ground planes & gold wash. Will not bend or flex while inserting a tube
• Medical grade power supply included
• Class A output stage, no overall Feedback
• 5 YEAR WARRANTY on G1217 built amplifiers
• Shipped, built and kitted from the US
• US / Netherlands design team
For Advanced Tuners:
• Input capacitor section is drilled for multiple capacitor footprints. 2, 2.5, 3.5, 5 or 7.5mm spacing available
• Output capacitor section is drilled for 7.5mm
• Power supply capacitor section is drilled for 7.5mm
• Input capacitors can be bypassed for optimal sound (can result in a scratchy sound only when adjusting volume)
• Variable output resistance, selectable from 1, 32 or to 69ohm
Actual Project Sunrise Measurements:
• Single ended, class-A output stage
• Power consumption: 13W continuous 19W peak
• Power supply: 24VDC (0.55A cont, 0,8A peak)
• Input Resistance: 11k / 31kOhm gain module dependent
• Input Sensitivity (6N23): 270mV (dependent on tube)
• Gain: 14-26dB (dependent on tube)
• Max Output voltage (no load): 5.4V
• Output Resistance: Selectable 1, 32 or 69Ohm
• Frequency Response: 4 Hz – 350 KHz (-3dB) with 32 Ohm load
• Signal to Noise ratio: 91dBA (dependent on tube)
• Crosstalk: -88dB (dependent on tube)
• THD: > 0.013% (dependent on tube)
• Suitable for: 32 - 300 Ohm Headphones
• Dimensions: 6.5L X 5W X 2.75H in inches
• Weight: Acrylic Chassis .89lb (without power supply) / Aluminum Chassis 1.24lb (without power supply)
http://www.garage1217.com/new_website_002.htmG1217 Project Horizon 3.1 (Kit $240, Built $275, alu-chassis +$40)
- G1217 Project Horizon III.jpg (45.46 KiB) Vist 57851 gange
Tube Headphone Amplifier / Pre-Amp - Optimized for headphones 120-600 Ohms
Project Horizon is a sister amplifier to Project Sunrise III even sharing the same PCB. Understanding the want and need for a version specifically built for high impedance headphones, Project Horizon was born. Horizon costs a bit more than Sunrise III as it takes quite a few more parts and a much higher voltage power supply. Horizon is quite a beast and just like Sunrise III, she is very musical and offers loads of adjustability combined with the ability to roll a ton of tubes. Horizon is a real staple to our lineup and also has been reviewed and loved globally!Features of Horizon 3.1:
• Designed for higher impedance headphones. Best suited for headphones 300-600ohm but OK with headphones 120-600ohm
• Line output for pre-amp use (volume controlled)
• Manual bias design with easy-set LED bias system, no multimeter needed
• Manual voltage setting with quick access through top cover
• Variable input gain with easy to swap module
• Capable of utilizing a wide range of 6v and 12v tubes. More options available with adapters (500mA heater current default, 1A available with option supercharger module)
• Selectable output impedance per quick access jumpers located on the sides of the amplifier
• Lightning quick protection circuit with tube warm up delay
• Onboard RGB LED under the tube to dial in a color that suits you
• Top quality components sourced in the US from reputable distributors. No gray market or counterfeit components that plague other manufacturers (designed for the long haul)
• Beautiful piano gloss black .096 thick double sided PCB in 2oz copper with top and bottom ground planes & gold wash. Will not bend or flex while inserting a tube
• Class A output stage, no overall Feedback
• Medical grade power supply included
• 5 YEAR WARRANTY on G1217 built amplifiers
• Shipped, built and kitted from the US
• US / Netherlands design team
For Advanced Tuners:
• Input capacitor section is drilled for multiple capacitor footprints. 2, 2.5, 3.5, 5 or 7.5mm spacing available
• Output capacitor section is drilled for 7.5mm
• Power supply capacitor section is drilled for 7.5mm
• Input capacitors can be bypassed for optimal sound (can result in a scratchy sound only when adjusting volume)
• Variable output resistance, selectable from 1.5, 35 and 120ohm
Actual Project Horizon Measurements
• Single ended, class-A output stage
• Power consumption: 13W continuous, 19W peak.
• Power supply: 48VDC (0.55A cont, 0,8A peak)
• Input Resistance: 11k / 31kOhm gain module dependent
• Input Sensitivity (6N23): 270mV (dependent on tube)
• Gain: 20dB (dependent on tube) Changed from the original higher 26dB specification
• Max Output voltage (no load): 14.1Vrms at 300ohm
• Output Resistance: Selectable 1.5, 35 or 120ohm
• Frequency Response: 10Hz – 160 KHz (-0.5dB) with 32ohm load
• Frequency Response: 4Hz – 400 KHz (-3dB) with 32ohm load
• Signal to Noise ratio: 91dBA (dependent on tube)
• Crosstalk: -88dB (dependent on tube)
• THD: > 0.013% (dependent on tube)
• Suitable for: 120-600ohm Headphones
• Dimensions: 6.5L X 5W X 2.75H in inches
• Weight: Acrylic Chassis 1lb (without power supply) / Aluminum Chassis 1.34lb (without power supply)
http://www.garage1217.com/new_website_003.htmG1217 Project Solstice (Kit $220, Built $255, alu-chassis +$40)
- G1217 Project Solstice.jpg (490.91 KiB) Vist 57851 gange
Optimized for Headphones 32 - 600ohm
Solstice is a smooth, powerful and compact desktop amplifier with some very cool features. There is not a single tube amplifier on the market (besides ours) with this wide of a feature set that is even close in price to Solstice. In short, Solstice is a unique, high value amplifier that will suite even the most demanding tube lover, allowing countless tubes to be rolled with virtually no effort.Features:
• Auto bias. Simply plug in a tube from a long list of 6 & 12V dual triodes and it will bias itself
• Bias continuously adjusts itself so ageing of a tube is constantly corrected, within limits of course
• Manual heater voltage selection. Easy to adjust between 6 and 12v tubes by changing a jumper
• Startup protection circuit with thermal shutdown
• Advanced cooling design to keep temps nice and low
• Three output resistance settings from 0.1, 31 and 68 Ohm
• Easy to change Input Attenuation Module for tweaking usable volpot range
• Very efficient, low power consumption, low temperatures
• Awesome choice for headphones from 32-600 Ohm but can also drive 16 Ohm headphones
• Lots of headroom and more than enough output power at over 1W, depending on headphone and settings
• Comes with medical grade power supply
Specifications:
• Solid state output stage
• Non overall feedback - triode voltage gain stage
• Power supply: 24VDC (0.15A cont, 0.40A peak)
• Input Resistance: 61kO With default 50k gain module
• Input Sensitivity (6N23): 0.8V or 1.6V (dependent on gain setting and used tube)
• Gain: 12dB (selectable and dependent on tube)
• Max Output voltage: 7Vrms at 300R
• Output Resistance: Selectable 0.1R, 31R or 68R
• Frequency Response: 13Hz – 80 KHz (-0.5dB) with 32R load
• Frequency Response: 4.5Hz – 300 KHz (-3dB) with 32R load
• Signal to Noise ratio: 98dBA (dependent on tube)
• Crosstalk: -93dB (dependent on tube)
• THD: > 0.10% (dependent on tube)
• Suitable for: 16-600R Headphones, 32-300R recommended
• Dimensions: 5.75L X 5W X 2.75H in inches
• Weight: Acrylic Chassis .65lb (without power supply) / Aluminum Chassis 1lb (without powers supply)
http://www.garage1217.com/new_website_005.htmG1217 Project Ember 2.1 (Kit $310, Built $360, alu-chassis +$40)
- G1217 Project Ember II.jpg (1.67 MiB) Vist 57851 gange
Tube Headphone Amplifier and Pre-Amplifier.. Project Ember is our flagship amplifier that can power virtually any headphone available and power them with authority.Features:
• Auto bias. Simply plug in a tube from a long list of 6 & 12V dual triodes and it will bias itself
• Bias continuously adjusts itself so ageing of a tube is constantly corrected until the tube way out of spec
• Auto heater selection. Plug and play with a 6 or 12V tube and the heater voltage arrangement will be automatically set
• Lightning fast startup protection circuit with thermal shutdown protection
• Line out disconnect for the pre-outs when headphones are plugged in (can be changed easily via two solder jumpers)
• Pre-amp output so it can double as a volume controlled tube buffer
• Advanced cooling design to keep temps nice and low
• Three output resistance settings from 0.1, 35 and 120 Ohm
• 4 way input jumper for advanced tuning depending on tube used
• Selectable gain / input attenuation via a quick change module or two jumpers
• Very efficient, low power consumption
• Awesome choice for headphones from 32-600 Ohm but can also drive 16 Ohm headphones easily
• Lots of headroom and more than enough output power (up to 2.4WPC) depending on headphone and settings
• Comes with a medical grade power supply.
• Not an audiophile feature, but you can change the under tube LED color to anything that you like via the RGB LED adjustment. Correct, we do not even force you to like the same color we do
Specifications:
• Solid state output stage
• Non overall feedback - triode voltage gain stage
• Power consumption: 5W continuous, 15W peak
• Power supply: 48VDC (0.10A cont, 0.32A peak)
• Input Resistance: 20k or 40k depending on gain setting
• Input Sensitivity (6N23): 0.8V or 1.6V (dependent on gain setting and used tube)
• Gain: 20- 26dB (selectable and dependent on tube)
• Max Output voltage: 15.7Vrms at 300Ohm
• Output Resistance: Selectable 0.1, 35 or 120Ohm
• Frequency Response: 3Hz – 65 KHz (-0.5dB) with 32Ohm load
• Frequency Response: 1.5Hz – 190 KHz (-3dB) with 32Ohm load
• Signal to Noise ratio: 92dBA (dependent on tube)
• Crosstalk: -89dB (dependent on tube / in most all cases much better!)
• THD: > 0.010% (dependent on tube)
• Suitable for: 16-600ohm Headphones
• Dimensions: 6.5L X 5W X 2.75H in inches
• Weight: Acrylic Chassis .78lb (without power supply) / Aluminum Chassis 1.2lb (without power supply)
http://www.garage1217.com/new_website_004.htm