The Moscow firm asked me to announce the product. (I apologize in advance for the long text and a large number of photos. Text from the words of the engineer of the company, in brackets my comments ) This is a kit for the manufacture of amplifier on the headphone tubes, which has the name Lunch Box II Disassembled kit looks like this: Assembled looks like this: Despite its modest appearance and small size, this amplifier has a cool biography. Production began in 2004 and continues to this day. Originally it looked like this: The first buyer was the Holy Trinity Ion Monastery in Kiev. The monks organized their own recording Studio. Then this amplifier as a sample was transferred to the firm "Eddie Current". The owner of the company kindly tested this amplifier and recommended to modify the scheme. His comments were fully taken into account and the light appeared «Lunch Box II» The name "Lunch Box" was also coined by the owner of the company "Eddie Current" . With his correct remarks, light hand and precise word the amplifier has received great acclaim in Russia. (To date, the word "Lunch Box" is almost synonymous with the word "headphone amplifier on the tubes" for fans of headphones in Russia.) Comparative photo of the first and modified model: Taking this opportunity, the owner of the production expresses his gratitude to the owner of "Eddie Current" for his irreplaceable help. The amplifier has repeatedly had reviews in audio magazines and got on the cover of Amateur radio magazine. In 2010 or 2011, the President of Russia Medvedev bought five amplifiers ( I wouldn't sell even a bucket of manure to this man, but no one asked my opinion) (I have known cases of purchase of this amplifier electronic universities to teach students in radio practice.) This amplifier is not the best amplifier in the world. But the simplicity, reliability and low cost made it mass. (Indeed, the reliability of this amplifier is close to the reliability of the cast iron product.) Disadvantages of this amplifier: When you mix the tubes burn two resistors. (But it's being repaired. I don't really like his work with low-impedance headphones.) Advantages: Excellent work with high-resistance headphones. Light weight and dimensions. Maintainability. (I have known cases of using this amplifier in several headphone stores specifically for the sale of headphones such as Sen HD580/600/650 and Beyer DT770/880/990) The estimated start of sales - in two or three weeks. The sales of this KIT will be me. The marketplace will be eBay or directly. Cost $165. For SBAF members $20 after unlocking the payment PayPal/EBay will be refunded either to your personal account or will be made a donation to SBAF on your behalf (at your request) I will be glad to hear criticism and wishes.