IWISTAO Blog is the official platform of IWISTAO HIFI MINIMART, dedicated to high-fidelity audio and DIY electronics. We focus on tube amplifiers, output and power transformers, speaker enclosures, and Bluetooth audio technologies, including HiFi Bluetooth speakers, headphones, and tube-based acoustic systems. The blog shares product insights, technical knowledge, and practical guides for audiophiles and audio builders worldwide.
Yi Jian Mei -- Played by IWISTAO 6.5 Inch HIFI Labyrinth Speaker plus Matisse Tube Preamplifier
The song Yi Jian Mei played by CD Player + GE5670 Matisse Tube Preamplifier + 6P1 Parallel Class A Single-ended Tube Amplifier.
And the speakers are IWISTAO 6.5 Inch HIFI Labyrinth Speakers with solid wood, which is made of solid wood, with double back guide pipe, and its return passage measured about 1.6 meters, and sound quality is relatively pure. Its panel can be replaced if you have spares. And the full range speaker unit is used Mark 6.5 inches full range CHN110.
Vacuum tube 813 belongs to antique one, which is a direct thermal beam shot tetrode with thorium tungsten cathode, graphite anode. In the radio equipment, it can be used for the oscillator power amplifier tubes, and its using frequencies are up to 30MC. When it is used as a power amplifier (such as Class AB), its output power is up to 300W or above, it is high reliable, excellent linearity, and not only does it perform tigers’ roaring and thunder exhaustive, but also can perform thin piano voice with detailed and delicate, it is the master of tube amplifier.
813 sound is very good, power and life are outstanding, air sense and sound field is far better than with that cannot be compared, you may not want to listen to small power output tube after listening tube 813. Due to its high power output, it can drive high power speakers that tube amplifier with lower output can't drive. It is the first choice to drive low-sensitivity, high-power and high-end speaker.
There are 813 (FU-13) Tube Amplifier Classical Diagram Circuits, only for your information.
More details, please find https://www.iwistao.com/products/vacuum-tube-813-shuguang-for-tube-amplifier-replace-fu13-high-power-output-quality-hifi-audio?_pos=1&_sid=d8f007fee&_ss=r
How to customize drilling the holes of your speaker cabinet
Sometime, we need drill the holes be suitable for the speaker cabinet, like as a through hole, and a countersunk hole, then you may fix your speaker unit into the cabinet.
We use a machine to do them, come on, take a look that how it works. Also there are many empty speaker cabinets for your DIY, including full range speaker cabinets, 2 ways, 3 ways, and labyrinth, inverted, and so on. You only select that one is suitable for you, then fix it into the cabinet, connect your power amplifier to enjoy your favorite songs...
IWISTAO Single-ended Tube Amplifier 2X3.5W Class A 6N1 Drive 6P14 5Z4P Rectifier Scaffolding Soldering Solid Wood Casing AC115/220V
The song is Bury The Heart, from CD Player + IWISTAO P14 Single-ended Tube Amplifier + 4 inch Full Range Solid Wood Speaker .
Here, 6p14 is a commonly power output vacuum tube in the previous tube radios, with a gorgeous sound and mellow sound! Savor carefully, nostalgic thoughts emerge spontaneously. This unit is suitable for high-sensitivity small bookshelf speakers, and also very suitable for using as desktop audio and upgrade computer audio.
Since the tubes of all levels are working in Class A amplification, the distortion is small, its tone is sweet and soft.Its rated output power is 2x3.5w, but the actual undistorted output power is equivalent to 2x20w transistor power amplifier because the tube has the advantage of strong overload capability,
The casing is made of Sapele solid wood, which is medium-hardness wood that maintains original color and texture of the wood. The case is coated with environmentally friendly varnish and polished and painted many times. The texture is rich, simple and beautiful! The upper and lower top plates are painted iron plates. The advantage of using iron top and bottom plates relative to aluminum plates is that they can isolate some clutter interference. Flat proportional size, solid and steady, restrained in atmosphere. There is still space inside the casing, you can replace a larger oil-immersed capacitor, or it is convenient to rub the circuit!
