Tuesday, May 26, 2020

IWISTAO HIFI Full Range Speaker Aluminum Casing 2x25W NdFeB Magnetic 8 ohm 78Hz-19.8Khz

IWISTAO HIFI Full Range Speaker Aluminum Casing 2x25W NdFeB Magnetic 8 ohm 78Hz-19.8Khz



This speaker is a whole aluminum casing, with ultra-thick materials, precision CNC machining, and install a special developed 4-inch full-range speakers, low frequency is better than the same diameter (4 inch) speakers. The use of aluminum alloy cabinet has many advantages, that is, it will not peel off, aging, cracks, etc. unless it falls on the ground, and the life is almost unlimited. And its density is heavier than the wooden speaker, there will be better shock absorption effect and with the internal sound-absorbing cotton, and the low frequency will not diverge.


The speaker uses a 4-inch NdFeB strong magnetic unit. Its low-frequency density is very good, dynamically distinct, the high-frequency extension and air feel are better, and the human voice is sweeter. This uit, first of all, is a magnetic circuit system, tombarthite NdFeB magnetic structure plus a short-circuiting copper sleeve, which solves the thoroughness of medium-high frequency from the starting point. But the selection of cone is more painstaking, cone is mainly composed of bass and medium-high sound. After various screenings, cotton and linen fiber is selected finally. And, the treble must be rigid and soft, then the bamboo plus bark fiber is selected. Through countless trials and adjustments, the effect finally conquered out ears. The final results are that its medium-high frequency density is very good, very thorough, and the background is clean.






Saturday, May 16, 2020

DIY 300B Vacuum Tube Amplifier with IWISTAO Amorphous 8C Core Output Transformer

DIY 300B Vacuum Tube Amplifier with IWISTAO Amorphous 8C Core Output Transformer

There is a video that is 300B Vacuum Tube Amplifier, which is used IWISTAO Amorphous 8C Core Output Transformer.



You may find IWISTAO Amorphous 8C Core Output Transformer here for more details.


Friday, May 8, 2020

IWISTAO HIFI Labyrinth 4.5 Inch Full Range Empty Speaker Cabinet Solid Wood 15mm Thickness Board


IWISTAO HIFI Labyrinth 4.5 Inch Full Range Empty Speaker Cabinet Solid Wood 15mm Thickness Board


This is a labyrinth empty enclosure that is made of poplar plywood or solid wood, the veneer of poplar plywood has natural tree branches texture and wood knots and has a natural beauty,





As you know, the greater the material density of the speaker enclosure, the less the vibration produced by the enclosure. Solid wood is more reflective of sound than other materials, and tightness of the wood is higher, and the sound can be effectively expressed by the vibration of the air inside the box. We often say that the sound of wooden speakers is warm, in fact, the word warm means the balance of tri-band that are low, medium and high frequency; if the frequency is too low or too high, it will make people feel uncomfortable. The advantage of wooden speaker is that its playback effect is good, the vibration of the sound inside the box is stable, and the sound effect will be balanced and full.