Saturday, March 27, 2021

IWISTAO HIFI 4 Inches Full Range Labyrinth Speaker Bamboo Cabinet

IWISTAO HIFI 4 Inches Full Range Labyrinth Speaker Cabinet Bamboo


This cabinet is a hand-made product, which is made up of bamboo, which is a pair HIFI 4-inch labyrinth full-range speaker, which has a good bass with a small volume. Its full range speaker unit is made of imported high-end materials, sound better than the Lowther Fostex one, warm and delicate tone, analysis High burr-free, vocal sweet, and silky. 

For the 4-inch small caliber speaker unit, the high and low frequencies have excellent performance, good music, good at playing the violin, saxophone and other strings, for the popular and HIFI female voices and other small compilations have a good performance. The treble is exquisite and more transparent, vocal performance is real and natural, midrange is full and full of oil and rich texture, and bass is concentrated and powerful. Its overall sound quality is stable and balanced, and the HIFI sound quality style is completely.


More details, please find here

Wednesday, March 17, 2021

How to assemble super tweeter with 5 inch long brass horn

How to assemble super tweeter with 5 inch long brass horn


This super tweeter is made of brass integrated stretching for musical instruments. The curve of horn is a natural and smooth parabola with a horn design and good sound field positioning.

The driver unit uses a 43mm diameter neodymium copper film one with a copper short-circuit ring, a high-permeability liquid, and an ultra-lightweight 40mm diaphragm made of beryllium copper to ensure that vibration quality is lighter and more air can be pushed at the same time. Makes the music spiritual and the details more real.

An alloy of beryllium and copper. It is a flexible material in copper alloys. It has high strength, elasticity, hardness, fatigue strength, small elastic hysteresis, corrosion resistance, wear resistance, cold resistance, high conductivity, non-magnetic, and no impact. Spark and a series of excellent physical, chemical and mechanical properties.

The beryllium copper film contains 16.7% beryllium and 83.3% copper, which can make the film very thin and not easier to break than pure beryllium film. After being processed into a diaphragm, the thickness of the entire diaphragm is only 0.015 mm (1.5 wires). The 0.04mm aluminum film and 0.03mm titanium film can't be surpassed. Therefore, the analytical power is extremely strong, that is, the delicate and durable hearing with silk film, and the splendor and broadness of brass instruments.

The ultra-high magnetic circuit is composed of neodymium magnet, and it is filled with a magnetic fluid. The magnetic fluid has three functions: assisting heat dissipation, providing damping of the horn diaphragm, reducing distortion and keeping the voice coil in the center position, and acting as a centering support To find the right positioning. The speaker can also use the copper diaphragm to dissipate the heat of the voice coil into the air to increase the speaker's power. Small size and high energy, as long as you are an enthusiast, you can't miss it.

A whole super tweeter is composed of 5 components as the picture below, including to a black marble base, a holder, a tweeter component, a phase cone, and a brass corn.



When you get them, you will assemble them into a completed super tweeter, please be careful. Here, take a look how we assemble it.

1. Assembling the holder into the black marble base.




2. Dismantling tweeter component and fixing the brass horn into the nut.





3. Assembling the phase cone into the horn.


4. Assembling the tweeter into the horn


5. Finally, assembling the base that had been fixed at the first step.





More details, please find here

Tuesday, March 16, 2021

KONG XIAO MENG from Passive Preamplifier 600:3.5K Audio Signal Boosting...

Passive Preamplifier Audio Signal Boosting Transformer 600Ω: 3.5KΩ British Original Authentic for Smartphone PC

This is a gain-adjustable passive preamplifier (audio signal boosting transformer). Using British original authentic 600:3.5K boosting transformers (second-hand disassembled one) 148H, 8DB amplification, the maximum magnification time is 2.4 times, oscilloscope test bandwidth 20-20KHz;



More details







Sunday, March 14, 2021

IWISTAO Vacuum Tube 6922/E88CC Tubes Preamplifier Stage Built-in Regenerative Power HIFI Audio

IWISTAO Vacuum Tube 6922/E88CC Tubes Preamplifier Stage Built-in Regenerative Power HIFI Audio


Many electrical appliances are converted from AC power to DC. Work at the peak of the AC, which causes the peak of the AC to be cut, causing a lot of harmonic interference. The distortion is generally up to 5%, or even higher when it become more serious. Power processing equipment can effectively reduce Interference, but it can’t be eliminated. The P20 which is recognized as the best American regenerative power supply, has an index of only 0.5%, and the sound is much better!




However, if the power of the regenerative power supply is large, the distortion is difficult to be low. If there is only power that less than 100W ten, it can still achieve ultra-low distortion power, which is applied to the pre-amplifier.

Now, many audiophiles had used a regenerative power equipment, which brings amazing changes in sound, reduces power interference, and significantly improves sound quality.

This tube preamplifier stage built-in an ultra-low distortion 60W regenerative power supply in order to achieve ultra-low distortion and ultra-high signal-to-noise ratio, its distortion is less than 0.01%, ultra-low distortion.

More details, please find here

Tuesday, March 9, 2021

IWISTAO LA1235 Stereo Radio Tuner Finished Board

IWISTAO LA1235 Stereo Radio Tuner  Finished Board


The LA1235 is recognized as a high-performance discriminator, the preparing Intermediate frequency amplification is the two-stage TA7302P, the discriminator is LA1235, after then the signal is very powerful, and finally FM stereo decoding of the LA3401 makes its sound clear and beautiful.

After the board is connected to HIFI amplifier and speakers, stereo FM radio can be played.