Same 4 inches full range speaker unit for different speaker cabinet.

Same 4 inches full range speaker unit for different speaker cabinet, they are all 

Labyrinth Structure from IWISTAO  speaker.

IWISTAO Single-ended Tube Amplifier 2X3.5W Class A 6N1 Drive 6P14 5Z4P Rectifier Scaffolding Soldering Solid Wood Casing

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!

More details, please find here below.

https://www.iwistao.com/collections/single-ended-tube-amp/products/iwistao-single-ended-tube-amplifier-2x3-5w-class-a-6n1-drive-6p14-5z4p-rectifier-scaffolding-soldering-solid-wood-case-115-220v?variant=31987631784051 https://www.iwistao.com/collections/hifi-speakers/products/iwistao-hifi-4-inch-full-range-speaker-solid-wood-1-pair-60w-4ohms-60hz-23khz-92db-max-akisui4-for-monitor-speakers-tube-amp https://www.iwistao.com/collections/cd-player/products/hifi-cd-player-with-dac-cs4398-192khz-24bit-high-quality-movement-upgrade-version-black-or-withe-panel-220v-audio

Don't decorate your dreams from FU50 single-end tube amplifier

Don't decorate your dreams from Terence Tsoi

Foobar2000 player Win 10 + FU50 single-end tube amplifier + HIFI 2awy Speaker.

 

Advantages of single-ended class A tube amp are that sound is pure and delicate, high-frequency extension of natural human voice, strings are very attractive, especially in triode connection was the most prominent. Because the operating point is selected on the linear characteristic curve segment, nonlinear distortion is relatively small, even harmonic content is high, but also very good sound effects, sound quality is beautiful moist, sweet and pleasant, like as the taste of multi-harp. The unit adopts tube FU50 also called small 300B as power stage, natural and smooth, mellow voice, has a very strong tube taste with expectations.

Designed with a switch for 5 signal inputs, they are MM phono, CD / DVD drive, USB decoder, AUX line, MP3/PC. And designed independence channel to exclude interference between different inputs to ensure no matter what audio input, the unit will not be impacted by other audio input and sound. And you can choose the different signal source according to individual needs.

IWISTAO Tube Amp FU50 2x13W Triode Connection Class A Signal-ended MM Phono Headphone USB Decoder

IWISTAO Tube Amp FU50 2x13W Triode Connection Class A Signal-ended MM Phono Headphone USB Decoder

FU50 Tube Integration Amplifier + Transparent Speaker 3 Inch Full Range.


Advantages of single-ended class A tube amp are that sound is pure and delicate, high-frequency extension of natural human voice, strings are very attractive, especially in triode connection was the most prominent. Because the operating point is selected on the linear characteristic curve segment, nonlinear distortion is relatively small, even harmonic content is high, but also very good sound effects, sound quality is beautiful moist, sweet and pleasant, like as the taste of multi-harp. The unit adopts shuguang tubes KT100 as power stage, this tube is an improved version of famous tube KT88 sounds fine, natural and smooth, mellow voice, has a very strong tube taste with expectations.

Designed with a switch for 5 signal inputs, they are MM phono, CD / DVD drive, USB decoder, AUX line, MP3/PC. And designed independence channel to exclude interference between different inputs to ensure no matter what audio input, the unit will not be impacted by other audio input and sound. And you can choose the different signal source according to individual needs.

More Details, please find here,

https://www.iwistao.com/collections/single-ended-tube-amp/products/tube-amplifier-fu50-power-stage-2x13w-triode-connection-class-a-signal-ended-with-mm-phono-headphone-amp-usb-decoder-hifi-audio

https://www.iwistao.com/collections/hifi-speakers/products/iwistao-20w-hifi-2-75-inch-transparent-labyrinth-speaker-5mm-acrylic-plate-4-ohm-84db-1-pair-stereo-audio

IWISTAO HIFI Power Amplifier 2x25W ClassA FET Single-ended Stereo Power Amp Whole Aluminum Casing Design

IWISTAO HIFI Amplifier 2x25W ClassA FET Single-ended Stereo Power Amp Whole Aluminum Casing Design With upc1237 Protection Black

It is a pure class A single-ended stereo power amplifier, which is a very high degree of completion HIFI amplifier, its sound is silky smoothness, also it is too appealing when you listen to the sound of strings and human voice with the unit, and this is definitely a warm sound amplifier, but unlike a little dim sound of tube amp, its sound is warm and detailed, while low dive control and damping is also very perfect.

As its 25W output power at 20 to 30 square meters or below space, both with book shelf speakers or floor speakers, it will have a good performance. Remarkably, its signal to noise ratio control very well, you will hardly hear a little noise when you put your ear to the speaker at deep night, although its power is increased to maximum, but the circuit design more rational, so it is still have higher SNR.

More details, please find here https://www.iwistao.com/collections/power-amplifiers/products/hifi-amplifier-2x25w-classa-fet-single-ended-passa30-stereo-power-amp-whole-aluminum-casing-design-with-upc1237-protection-black?variant=42725980428