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  17-Dec-2014  
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QualityKits Part #: K4040
K4040: Stereo Tube (Valve) Amplifier Kit
This is a KIT and requires assembly!
Chrome finish. 200W x 2 music power, 2 x 95W rms Class AB, 2 x 15W Class A. 4 or 8 ohm loads.

Price: USD $1,495.95

Quantity: K4040: Stereo Tube (Valve) Amplifier Kit

FEATURESTube amplifier kit Valve Amplifier electronic kit

95W IN CLASS A/B1
2 X 200W MUSIC POWER
CHROME COVERS FOR POWER SUPPLY AND AMPLIFIERS
4 OHM AND 8 OHM LOUDSPEAKER TERMINATIONS
To many people, the sound of valves or tubes cannot be surpassed either by bi-polar transistors or FETs. In developing this amplifier, special attention was paid to the housing. Indeed, it was decided to not hide the expensive valves, so that your eyes can have something to enjoy. Four EL34s are used in each channel to generate the high power output. Very high quality toroidal core ultra-linear output transformers are employed to provide outstanding sound quality.

The K4040 is a redesigned version of the popular and respected K4000, it includes a number of changes that make the amplifier easier to build and setup, more attractive in appearance and even more pleasing to the ear in use. 

K4040 improvements: One main circuit board - a few minor circuit changes have been made to improve stability with different loads.  High quality capacitors are used throughout the circuit for improved performance and stability.  Less wiring means less connections which could result in added noise and distortion.  Servicing is less cumbersome due to  removable bottom cover and front panel.  Restyled enclosure with brushed aluminum front panel and chrome plated verticle mirror panel.  Chrome rings cover valve bases of all visible valves.  Four attractive chrome feet.  Heavy duty gold-plated speaker terminals.  Standby circuit keeps the amp up and running between listening sessions, thus improving valve life.   Softstart circuit enhances valve life.  Input mute during power-up and standby.  Bias adjustment is no longer a cumbersome job.   Behind the removable front panel the bias adjustment trimmers and switches are accessible.  An LED display eliminates the need for a multimeter - very convenient for regular inspection of correct biasing. 

SPECIFICATION

Output power: 2 x 200W music power
2 x 95W rms in class AB
2 x 15W in class A
Output impedance: 4 ohms or 8 ohms
Power bandwidth: 10Hz to 60kHz
(-3dB at max. output)
Frequency band: 4Hz to 100kHz
(-3dB ref. 1W)
Harmonic distortion: 0.08% (1kHz/1W) 0.63%
(1kHz/max. output power)
S/N ratio: 102dB (A-weighted) at 95W
Channel separation: 67dB at 95W
Input impedance: 100k ohms
Input sensitivity: 0dB (0.775mV rms) for 95W
Damping factor: 25
Overall feedback: 18dB
Weight: 20kg
Dimensions: 425 x 130 x 350mm



Price: USD $1,495.95

Quantity: K4040: Stereo Tube (Valve) Amplifier Kit

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~ Celebrating 18 Years of QualityKits in 2014 ~
  17-Dec-2014  
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