Wednesday, December 18, 2019

IWISTAO 1 Inch Tweeter External Placed Aluminum Casing High Frequency Compensation for Full Speaker

IWISTAO 1 Inch Tweeter External Placed Aluminum Casing High Frequency Compensation for Full Range Speaker


Many audiophile like to use a pair of full range to play music, it is a good choice. If the full range speakers are matched with external tweeter to compensate the high frequency, it will be better.

This external tweeter speaker is mainly used for treble compensation for the audio. It is suitable for the high-frequency compensation of those full-range sound, which is not enough for high volume feeling, dim, and poor performance, It has a good complementary effect. And easy to install, externally placed on the top of the speaker, beautiful and generous.

It is made of a one inch tweeter unit that its sound quality is clear and delicate, clear and not harsh, the effect is very good.





There is our customer's feedback for this pair external tweeter and thank their sharings.
"Seem to add a little more clarity, voices more well defined. Subtle but definite and worthwhile improvements. Make decent speaker just that bit better very pleased.  Supplied wire only about 12" so you may need to extend, easily done. I am not sure how they do it, but having listened to a few tracks now, it's like having a new pair of speakers. The stereo imaging is much more well defined, instrument separation is pin sharp and the overall listening experience is far more pleasurable and musical. Excellent value for money, the improvements they have made far exceed the cost of these little super tweeters, very very pleased I bought them."



"отличная штука, хотел поменять акустику теперь не хочу, добавили объём и т.д. рекомендую данный магазин и товар к приобретению для тех кто хочет за малые вложения изменить звучание системы."



This tweeter speaker adopts a special aluminum alloy casing, which is high-end atmosphere and can be conveniently placed on the top of the speaker. The lower part can be fixed with double-sided tape. It is also possible to punch holes in the top of the speaker to make it more secure. It is a very good choice for modifying home speakers.




Monday, December 16, 2019

How to build a tube FM tuner with IWISTAO tube FM PCB kits

How to build a tube FM tuner with IWISTAO tube FM PCB kits


There are some key components for the tube fm radio tuner PCB. You may select them and assemble your tube FM tuner, then connect power amplifier and speakers after soldering and tuning this PCBA, the system will work, at that time you may enjoy warm and soft tube sound, full vacuum tube taste...

Post image
IWISTAO Mid Cycle Inductance Kit for Tube FM Radio Tuner 1 pc frequency detector and 4 pcs Mid Cycle Inductance

Post image
PCB + Mid Cycle Inductance Kit
You may select a power transformer according to your local voltage.
Post image
IWISTAO Power Transformer EI Output Voltage 230V-0-230V 6.3v 11V for Tube FM Tuner 110/220V/240V

After soldering and tuning, you will get a finished PCBA.

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IWISTAO Tube FM Stereo Radio Tuner Finished PCBA Preamplifier Version

There is a demo video for the PCBA with power amplifier and speakers.

Friday, December 6, 2019

IWISTAO Electronical 2 Way Crossover Preamp HIFI Linkwitz-Riley filter 4...

Crossover PCBA is constituted by renowned Linkwitz-Riley filter. Linkwitz-Riley filter, mainly for the active filter circuit, for example, it is used in many sophisticated multi-way electronic crossover systems. The characteristics of this filter is up to 4 stages attenuation slope, in other words, every one octave frequency sound energy will be attenuated 24dB, i.e. attenuation slope of -24dB / Oct (Oct ie Octave, an octave interval of the mean). Meanwhile, in the entire audio band (20Hz-20kHz), Linkwitz-Riley filter has a very flat phase response, which is far better than Butterworth filter after filter signal, no phase distortion, which is widely admired by audiophiles.

Although many friends put a lot of money and efforts to preamplifier, unfortunately they may experiences a little frustration in final output. It is hardly difficult to solve this problem to use excellent pre-divider circuit of preamplifier plus multiple power amplifiers, our series of electronic crossover board and amplifier board can perfectly realize your dreams!

Sunday, November 24, 2019

Tube Earphone Amplifier 12 ~ 600 ohms Russian 6922H Pre-amp Class A Amp HIFI Constant Current Simple No Casing Audio DIY High Quality


Tube Earphone Amplifier 12 ~ 600 ohms Russian 6922H Pre-amp Class A Amp HIFI Constant Current Simple No Casing Audio DIY High Quality 

It is a high value and cute headphone amplifier hook up to your PC / Mp3 /MP4/ Tablet / any stereo devices. You can have a powerful, dynamic and sweet TUBE SOUND from your headphone! You’ll be astounded at the improvement in sound quality, dynamic range, meticulous transparency, completely demonstrate its high performance and analytical ability, it can also connect with power amplifier such as a high performance pre amplifier to improve your HIFI system.








Thursday, October 10, 2019

IWISTAO 2X300W HIFI Stereo Discrete Component Power Amplifier Finished Board High Power Differential Amplification Input WY2963/WK5688 Output






This is a stereo high-power finished PCBA power amplifier board which is made of discrete components, and its maximum power is up to 300W+300W.


The input stage adopts American power differential transistors and medium power one for differential amplification to make its sound pure and soft. The output stage adopts 6 pairs of US WY2963/WK5688 power pair transistors, and 2 pcs high-precision temperature compensation one with constant current amplification designing, let its sound is more beautiful and delicate and sweet; And, the protection circuit uses imported Omron relay; RC component uses high-precision fever components to ensure the consistency of the materials used in the whole unit.



WHFTA-A686(1)l1
WHFTA-A686(1)lWHFTA-A686(1)l2WHFTA-A686(1)l2



Thursday, September 26, 2019

IWISTAO Finished Tube FM Stereo Tuner Stainless Steel Chassis

WISTAO Finished Tube FM Stereo Tuner Stainless Steel Chassis Black Aluminum Panel HIFI Audio 110V/220V


This unit is a typical superheterodyne radio. It adopts a whole circuit board design that include high frequency receiving, intermediate frequency amplification, limiting, frequency discrimination, stereo decoding, preamplification, etc. The output is stereo signal. It can be connected with various types of tube power amplifiers, active speakers, stereo equalization amplifiers and other equipments.

The specific circuit configuration is as below, high frequency receiving adopts double triode 6N3 for high frequency amplification and mixer amplification, and double triode 6N1 for local oscillation. The IF amplification uses a two-stage pentode 6K4, two-stage limiting, and a pentode 6J4. Phase frequency discrimination, stereo decoding uses TA7343, the decoded audio signal is switched to the double triode 6N2, and then the signal output to preamplification with a 5 times gain.

It is made of stainless steel chassis with black, and the front panel with 8mm thick aluminum plate. On the front panel, there are dual level meters to display audio signal level, and the digital frequency meter display FM reception frequency. Electronic tube with a modern digital frequency meter that is complementing each other with nice, classical and elegant style, maybe the frequency display board of the wireless receiver is the designer's wisdom. The right corner of the unit has a knob to manually tune the radio. All tubes are exposed at the top plate for heat dissipation purpose, and equipped with cat eye indicator behind the front panel. The whole structure of the tuner is compact, components layout had been optimized to be more reasonable.


Tuesday, September 17, 2019

IWISTAO 300B Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 3.5K

300B Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 3.5K Se 0-4-8 ohms



This 300B single-ended output transformer uses British amorphous high-grade C-type iron core that has a unique advantage, especially when he static operating point is 80ma or below , it can give full play to the advantages of the output transformer. After actual measurement and listening, the voice is very vivid, clear, low-frequency tension is very balanced in three bands, excellent permeability and atmosphere feeling

Using high-quality enameled wire, lamination process, CNC drying, vacuum impregnation, well-designed 8C structure, to design to a perfect coefficient.


It is a better choice to tube amplifier audiophiles. Also, there is a matched power transformer.




300B Output Transformer C Type Single-ended Amorphous 8C 3.5K Plus Power Transformer


Here is the 300B tube amplifier.

300B Single-ended Class A 2X8W Tube Amplifier British Amorphous 8C Advanced Core Output Transformer


 


Thursday, September 5, 2019

IWISTAO Bluetooth Speaker Handmade Vintage Pure Solid Wood 2x15W AUX U Disk MP3 WAV FLAC

If you are tired the Bluetooth speaker by mass production and want to find a unique Bluetooth speaker with good sound quality, you can come here to check it out.


The cabinet is made of 13MM thick sandalwood board with high density and rigidity. The panel is made of 8MM thick oak board with sharp texture and good toughness. Its structure is embedded with 45° angled slot and has high stability. It achieves a 400-mesh surface treatment and is coated with wood wax oil to maintain its natural color, feel good and easy to care.

Handmade products are more or less awkward and cannot be compared to the products produced by assembly line. If you are a perfectionist, this speaker may not be suitable for you.








 


Tuesday, August 20, 2019

IWISTAO HIFI Empty Wood Horn Solid 1 Pair Treble Compensation for Full Range Matched Fostex FT17H Horn

IWISTAO HIFI Empty Wood Horn Solid 1 Pair Treble Compensation for Full Range Matched Fostex FT17H Horn




This is a pair of empty solid wood horns. It can be used with the original Fostex FT17H horn super tweeter. The unit is equipped with a wooden horn to make the treble more efficient and better. It is placed on the top of the speaker and is equipped with a full-range horn as a treble compensation


Fostex FT17H horn super tweeter and large speaker (full range speaker or subwoofer) in parallel 2.2UF stepless audio capacitor and capacitor in series with the treble positive.The big horn speaker plus the horn is the right way if available. After listening to it, you may never hear the small speaker cabinet again.











Wednesday, July 31, 2019

IWISTAO Passive Preamplifier Kit Unbalanced to Balanced/RCA to XLR/Signa...

IWISTAO Passive Preamplifier Kit Unbalanced to Balanced/RCA to XLR/Signal Input Transformer


When you use your mobile phone or computer to listen to music, you will find that the sound is small, the details are small, and the dynamic is thin, their sound quality aren’t full and pleasant like as CD player, decoder. This is because the output value of mobile phone and computer is 0.2-0.5V audio voltage only, while the existing power amplifier is generally designed with an input voltage of 0.75-1.2V. This intermediate voltage difference requires a 2x amplification boost value. Now the 1:2 signal boosting transformer solves this disadvantage.



1:2 signal boosting transformer, balance transformer, and inverter transformer, that is a passive boosting transformer developed to compensate for low signal output of computers and mobile audio sources in the existing market. Make the ordinary sound source close to the effect of CD player signal one. And, if CD player connected the signal boosting transformer to power amplifier, its sound will be even more powerful. After the audio signal pass the boosting transformer and amplify, it will output a stable impedance, it will lead to its signal transmission is fidelity, and its sound field positioning is better!


More details, please find here 
https://www.iwistao.com/products/iwistao-passive-preamplifier-kits-no-assembled-unbalanced-to-balanced-balanced-to-unbalanced-rca-to-xlr-signal-transformer?variant=29180982820979

Saturday, July 27, 2019

IWISTAO Tube FM Stereo Radio Power Amp 6P1 2x3.5W Whole Metal Chassis

IWISTAO Tube FM Stereo Radio Power Amp 6P1 2x3.5W Whole Metal Chassis 


About this tube FM radio, it used 6N3 as a high-level and mixing, 6C11 as the unit local oscillates, IF amplification as 6J4 together with 5pcs mid cycle inductance, and it has the advantages of high sensitivity, low noise. After stereo decoded by TA7343AP, then the signal will be amplified by tube 6N2 as a preamplifier. And power amplifier part, it used the classic 6N2 driving 6P1, the sound is sweet and mellow.

It is a tube FM radio built-in power amplifier inside, the power amplifier is single-ended class A and its output power is 2x3.5W. After get it, you only need connect with outdoor antenna, and HIFI speakers, then you can listen to it, recommend using a pair high sensitivity full range speakers.




More details, please visit the link or leave your comment.
https://www.iwistao.com/products/iwistao-tube-fm-stereo-radio-built-in-power-amplifier-6p1-whole-aluminum-chassis-high-sensitivity-110v?variant=18486629892211


Thursday, July 25, 2019

IWISTAO 2 Ways 4.5 Inches Bamboo Empty Enclosure 7.2L Retro Style

The 4.5 inch is a very retro size, a little bigger than 4 inches and smaller than 5 inches. In the 1990s, there were more speakers to use the size speaker unit. The cabinet design of this 4.5-inch speaker is very reasonable, its depth is increased, bass is better, and it is more in line with modern style, so that retro classic speaker reproduces its spring. Do not believe that you can listen to the video, the bass is full and flexible. Due to using high-sensitivity condenser mic, the recording background noise may be more obvious, but the effect is closer to reality.

This 4.5-inch speaker enclosure made of bamboo is compatible with 4.5 inch Sony speakers, and it is recommended that install speaker units inside as the photos showed, and will get better effect. Why is it effect better? It is not just casual to say, the built-in speaker units and the cabinet panel form a horn cavity, which increases sound pressure of the direct sound wave, reduce the treble diffraction on the panel, and then sound field becomes accurate, resolution of midrange and tremble is improved, there is a classic example that J B L flagship series that uses horn design.


Tuesday, July 23, 2019

How to DIY your oak full range labyrinth speakers

How to DIY your oak full range labyrinth speakers



In order to get the desired effect for small diameter full-range speaker like as 2 to 4 inches, the limit of its low-frequency is a key. This speaker completely overthrew the concept of speaker-making, speaker adopted Labyrinth cabinet structure that will get well effect but the structure is more complex, limiting its development. Through we continuous the efforts, we make a revolutionary new speaker for the full range speaker.

Firstly, we accurately calculated quarter wavelength of the radiation frequency of sound, the get the length of the tube sound to ensure sound quality; Secondly, we use engraving machine to segment carving, remove all burrs. Thirdly, using a tube amplifier and transistor amplifier for repeated testing and audition, spend a lot of energy produced, in order to power matched.

Now, the 2 to 4 inches oak full range labyrinth speaker cabinet hit the market now. 

You just need to select your full range unit speaker unit and install them in the cabinet only, so easy!


And how to do it, please take a look as below.


IWISTAO HIFI 4 inch full range Labyrinth speaker cabinet
IWISTAO HIFI 4 inches full range Labyrinth speaker cabinet oak woodIWISTAO HIFI 4 inches full range Labyrinth speaker cabinet oak wood
IWISTAO HIFI 4 inches full range  Labyrinth Speaker cabinet oak wood finishedIWISTAO HIFI 4 inches full range  Labyrinth Speaker cabinet oak wood finished1


If you have questions, please contact us or leave your comments, thanks!

Tuesday, June 11, 2019

Classic Vintage Gramophone Vinyl Record CD Player Retro FM Radio Bluetoo...

Classic Vintage Gramophone Vinyl Record Vintage CD Player Retro FM Radio Bluetooth Speaker 220V


It is a multi-function phonograph, which is classic appearance, full-featured with 2 speakers design, sound sweet, nostalgia. The model has two versions of the classic version and Bluetooth options, the classic version just does not have the Bluetooth function, the others are same as the Bluetooth version.




Features

1. Seven in one function: FM radio, vinyl playback, CD disc playback, U disk playback for MP3, 3.5mm audio input, 2-RCA audio output, Bluetooth playback.

2. Small size and powerful, more suitable for customers like small-volume record player; retro square box plus modern elements of fashion design.

3. Wear-resistant ruby song sing needle, 33/45/78 three-speed switch, non-slip solid compact disc design, more smoothly play vinyl records.

4. High-performance and quality CD movement, read the disk performance more stable.

5. Double 4-inch 5W speaker unit and excellent circuit design, sound is nostalgic sweet.

6. Equipped with 3.5mm AUX input interface, you can easily connect an external audio source, play music.

7. Equipped with 2-RCA output interface for easy connection to external power amplifier.

8. Equipped with USB interface, can play MP3 format audio in U disk.

9. Support for Bluetooth playback.

10. Recommended area: 40-80 square range

More details, please visit https://www.iwistao.com/products/classic-vintage-gramophone-vinyl-record-vintage-cd-player-retro-fm-radio-bluetooth-speaker-7-to-1-function-220v?_pos=4&_sid=b9cfd9d6a&_ss=r&variant=1322681663513


Tuesday, May 28, 2019

IWISTAO HIFI 3 Inches Full Range Speaker 2x25W 4Ohms 78Hz-19.5KHz 88dB Oak Labyrinth Speakers for Tube Amp

Listen to the sound is far wider sound field, better resolution, better layer structured. We are intoxicated by the music, the melody of each neuron start wondered if peristalsis, high, medium and low frequency is very balance, so fantastic! The sound of the human voice is warm, soft and pure, and natural loose, smaller noise pollution, rich musical taste, great flavor, also has a good low-frequency performance, is a treat for the ears, very enjoyable for long time listening and you dont feel tired.

Its sound quality is excellent, fresh and pure and hearty, the overall coherence and excellent resolving power, high-frequency delicate transparent, rich in detail, round and full midrange, natural and real. Also its sound is very charming, it will achieve a very good bass performance particularly if adopt maze speaker cabinet.


The speaker uses a 3-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.





Wednesday, May 22, 2019

DIY Labyrinth Speaker with IWISTAO cabinets from Pioneer PE12 monster alnico

This video is made by a real audiophile, who used a pair IWISTAO Labyrinth Empty Cabinet and his full range pioneer speaker units to diy his labyrinth speakers, also took him a lot efforts to finish it, thank him and thank his sharing...




There is also a video of the assembling process from him.


Tuesday, April 2, 2019

Leave the sadness to yourself from IWISTAO Bluetooth Speaker with solid wood cabinet

Leave the sadness to yourself from IWISTAO Bluetooth Speaker with solid wood cabinet

The song "Leave the sadness to yourself" from IWISTAO Bluetooth Speaker, which is make of solid wood cabinet.

Saturday, March 2, 2019

HIFI Preamplifier Electronical 3 Way Crossover Linkwitz-Riley Filter Cro...

Although many friends put a lot of money and efforts to preamplifier, unfortunately they may experiences a little frustration in final output. It is hardly difficult to solve this problem to use excellent pre-divider circuit of preamplifier plus multiple power amplifiers, our series of electronic crossover board and amplifier board can perfectly realize your dreams!

Crossover PCBA is constituted by renowned Linkwitz-Riley filter. Linkwitz-Riley filter, mainly for the active filter circuit, for example, it is used in many sophisticated multi-way electronic crossover systems. The characteristics of this filter is up to 4 stages attenuation slope, in other words, every one octave frequency sound energy will be attenuated 24dB, i.e. attenuation slope of -24dB / Oct (Oct ie Octave, an octave interval of the mean). Meanwhile, in the entire audio band (20Hz-20kHz), Linkwitz-Riley filter has a very flat phase response, which is far better than Butterworth filter after filter signal, no phase distortion, which is widely admired by audiophiles.



IWISTAO Discrete Components FM Radio Board Stereo LA3401 Decoding DC12V

Will you like a discrete components FM Radio with warm sound? There is the board for you.

The receiving part adopts the discrete component split frequency tuning head as a HF receiving unit. The PCBA adopts double balanced proportional discriminator with excellent sound quality, and also optimizes its layout of the intermediate frequency circuit PCB, improves the stability of the intermediate frequency. And it uses a LA3401 decoding chip as FM stereo decoder, whose resolution is up to 70dB,its noise ratio is up to 95 dB. At the same time, a first-stage FM mixed signal preamplifier is added, which improve the problem that the LA3401 standard circuit cannot be driven in weak signal, so that each radio station can achieve good mediation resolution. After then, the LA3401 has no decoding noise and is comparable to the LA3450 chip.

This is a stereo FM radio finished board with discrete components. You only connect DC12V power adapter and speakers then you can enjoy wonderful FM radio. Or, you may make a wooden casing and DIY it as a vintage radio.


Wednesday, February 6, 2019

Tape plus active mono speakers

Tape plus active mono speakers

Tape plus active mono speakers, the album called Dancer.

Wednesday, January 16, 2019

How to DIY Labyrinth Speaker with IWISATO 4-inch HIFI Speaker Empty Cabinet Kits

How to DIY Labyrinth Speaker with IWISATO 4-inch HIFI Speaker Empty Cabinet Kits

It is a pair very popular labyrinth speaker cabinet DIY kits, which adopt double back guide pipe, its return passage measured 1.6 meters, and sound quality is relatively pure. Its panel can be replaced if you have spares. This speaker cabinet kits support 2.5—4 inches full range speaker.

All kits Material: plate is HDF rather than MDF; fasteners are made of industry 8.8 level black hex bolts, lock nuts are made of Brass, fastening nuts of panel is made of steel-plated color zinc. Accessories excluded terminals and wiring. And its cross weight is about 9kg.
 IWISATO 4-inch  HIFI Speaker Empty Cabinet Kits
Exploded view of Labyrinth Speaker with IWISATO 4-inch  HIFI Speaker Empty Cabinet Kits

Front panel and the body of speaker

Inside Structure of Labyrinth Speaker

Exploded view of side plate and front panel, body


Fixed screw and speaker cabinet



There are assembling steps as below and using the last version speaker cabinet as an example.
1. Please check if the shipments are completed, and placed separately firstly.

WHFSC-K2T4(PL)

WHFSC-K2T4(p3l)

2. Use a steel saw blade (or a saw) to cut the inner ribs (waste) from the plywood sheet down, or rip them off, then use a chisel, rasp or sanding wood it that left over burrs.
WHFSC-K2T4(pr11l)

WHFSC-K2T4(pr1l)

3. Install the connecting wire terminal (If there are not holes, please drill hole to fit terminals), prepare to soldering cables are not shorter than 55 cm, and soldering it to the terminal with spare.

WHFSC-K2T4(A18L)

4. Start assembling them with. Black hex bolts, lock nuts
WHFSC-K2T4(A4l)
5. After assembled, polish and smooth the external surface.

6. Install the panel, and soldering the cables to speaker units.
WHFSC-K2T4(A21)

The high-density surface is smooth, seamless laminated without glue, glue also has a thickness of multi-layer stack will increase a few millimeters that lead to the panel will become small, screw holes will not be reached.

At the same time, please avoid moisture.

Mode details, please visit https://www.iwistao.com/collections/empty-woodem-cabinets/products/iwistao-hifi-speaker-empty-cabinet-kits-labyrinth-structure-with-high-density-fibreboard-for-2-5-4-inches-full-range-speaker-unit?variant=18118295257203

Or you may select from the collection below.