Velleman K4040 Stereo Vacuum Tube Amplifier Kit

For most of us, a high power tube amplifier is unaffordable. This kit changes that, so that now everybody can enjoy that powerful and lush "tube sound". The sound of tubes has never been surpassed, neither by transistors nor by FETs. In the course of developing this amplifier, special attention was given to the housing so that the tubes are on display in a way that is very pleasing to the eye. The weakest point of an tube amplifier are the output transformers; that's the reason why we use ultra-linear and over-rated toroidal output transformers to guarantee a rich bass response. To extend the life of the precious valves, the amplifier is provided with an switch on delay, so that the high voltage is switched on when the tubes are warmed up. Everything you need to build this kit is included. Best of all, you get a detailed step-by-step construction guide.

Features:

pure valve sound with high quality EL34 tubes

high quality black and chrome housing

chrome valve socket covers

easy bias adjustment with LED indication

removable bottom for easy access and service

high quality capacitors and components

gold plated input and speaker terminals

standby function

"Soft start" circuit for power transformer

Specifications:

output power: 2 x 90Wrms music power for loads of 4 or 8 ohm

power bandwidth: 15Hz - 40kHz (-3dB ref. 50W)

frequency range: 8Hz - 80kHz (-3dB ref. 1W)

harmonic distortion: 0.08% (1kHz / 1W) / 0.7% (1kHz / 90W)

signal-to-noise ratio: > 105dB (A-weighted ref. 90W)

channel separation: >75dB (ref. 90W)

input impedance: 34Kohm

input sensitivity: 1Vrms at 95W

damping factor: >10 (100Hz)

weight: 37.5lb

dimensions: 16.7" x 5.1" x 13.8"

Download the step-by-step manual: Manual_K4040.pdf (1007 kB)

Please Note: This item is subject to a shipping surcharge.

For maximum performance and longevity, vacuum tubes should always be stored and transported in a safe and secure fashion. The TubeCube and the TubeCube Pro provide a customizable shock-resistant environment for your tubes and helps prevent them from becoming microphonic or damaged.

Shipping for $4.95 >>>See Limitations<<<
TOLL FREE Phone: 877-289-7994
Phone: 901-507-2726
Fax: 901-388-2405

Accepted forms of payment: VISA | MASTERCARD | DISCOVER | AMERICAN EXPRESS | PAYPAL

TubeDepot.com

Velleman K4040 Stereo Vacuum Tube Amplifier Kit