THIS LISTING IS FOR A PROJECT SUNRISE III KIT WITH VINTAGE 12AU7 RCA CLEARTOP TUBE/VALVE PLUS POWER SUPPLY!
This kit requires basic electronics knowledge, use of a multimeter, a quality soldering iron and miscellaneous tools such as flush cuts, sae allen wrenches and so forth. Please contact prior to purchase if you have any detailed questions on the the kit version of this amplifier. A fully assembled and tested version of this amp is also available in our listings! Shown with optional stainless thumb screws available on our site.

G1217 consists of two audio enthusiasts, Myself (Jeremy H) based here in the US and our electrical mad scientist (Frans G) across the pond in the Netherlands. The short story: Frans designs our gear electrically and somehow comes up with this stuff – absolutely a master at his craft. Myself, I handle the physical designs and actual products you receive from G1217. We both really do 10x the work of that brief description, but it gets the basics across. We are all about getting the most for your money which is why we are factory direct only. This keeps prices low and value high. Our only advertisements are here on ebay and word of mouth. Offering excellent gear over the years, our customers have spread the word which has let us grow from a single amplifier offering to 4 designs with more products on the way!

Our goal with Project Sunrise III was to produce a highly tweak-able hybrid tube headphone amplifier that excelled not only musically, but in aspects other manufacturers just do not offer. Project Sunrise will let you roll a LARGE selection of 6 & 12V tubes and will power them properly with a dedicated heater power supply. Some other features like selectable output impedance, ability to take the input capacitors out of line with the audio signal and super easy bias adjustment are things other manufacturers just do not offer.

This amp has it where it counts! This amp is open, dynamic and plays with authority. In short, this is not a cheap toy with counterfeit parts on a cheap PCB. This is a beautifully designed & engineered amp you can truly own and enjoy for a lifetime. You do not have to take my word on it, read some quotes below located at the bottom of the listing from many actual owners of the original Project Sunrise. Project Sunrise is already gaining a lot of attention in the US and internationally!

General Features of Project Sunrise III:
  • Designed in the U.S. & Netherlands. Kitted or Built in the U.S. depending on how you order / 3 YEAR WARRANTY ON G1217 BUILT AMPS
  • All parts sourced in the U.S. From reputable distributors, NO FAKE COUNTERFEIT PARTS, CAPACITORS OR RESISTORS!
  • Only top quality components used, such as Bourns pro audio potentiometer, Bourns trimmers, Low noise Vishay/Dale RN, CMF and CPF 1% resistors, Nichicon - Wima capacitors, Fairchild IRL510 Mosfets & top quality LM317AT’s used, Neutric phono jack. Ruggedized PCB RCA jacks, Rugged 5a power switch ETC… RCA's, tube socket, phono jacks and even jumpers are gold plated
  • Beautiful piano gloss black .096 thick double sided, 2oz PCB with top and bottom ground planes & gold wash. Will not bend or flex while inserting a tube!
  • 1A Dedicated heater power supply, no piggy-backing off LM317's which is a cheap, non desirable way of powering the tube heaters
  • Turn on / off protection for your headphones and audio gear
  • Supports a wide range of 6V or 12V tubes with voltage selection
  • New easy to use LED bias! Quickly and easily set the bias on your Sunrise III!
  • Class A, No overall Feedback
  • Fused with reverse polarity protection
  • Chassis is beautifully laser cut and serialized.
  • Chassis hardware features all stainless steel allen bolts, washers and nuts. Stand-offs are aluminum along with top cover thumb screws
  • Each factory built amplifier is meticulously hand built and tested prior to shipping. Solder work is outstanding and clean with no flux or fingerprints left on the board. Pride in workmanship is evident from every angle of this amp. What you see in photos is the quality of build you will get!
  • An RGB LED is available under the tube which can allow you to turn the tube ANY color you desire via 3 trimmers, or cover the LED so all that you see is the glow of the tube!

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:
  • 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

SHIPPING / SHIPPING TIMES:
- We ship all amps, kits or pcb's via priority mail or global priority mail
- G1217 built amps ship within 3 business days as each amp is hand crafted and rigorously tested prior to shipping.
- We ship Monday - Friday and go on the USPS holiday schedule