This is IWISTAO's Blogger,and for IWISTAO HIFI MINIMART, which is about Tube Amplifier,Output Transformer, Power Transformer, Speaker enclosure, and Bluetooth Technology, HIFI Audio and related accessories and the information like as Bluetooh Speaker, HIFI Bluetooth Earphone,HIFI Bluetooth Audio, HIFI Bluetooth Tube Acoustics,, and other populor electronics consumer products,.etc.
Male voice of the moon represents my heart form 2 x300W HIFI Stereo Discrete Component Power Amplifier
This is a high-power stereo power amplifier made of discrete components.
The power amplifier board uses a discrete high-power finished power amplifier board with discrete components, and its maximum power can reach 300W+300W. Support Bluetooth connection, play with U disk and card reader (support WVA, FLCA, APE, MP3 audio format).
IWISTAO 3-4 Inch Full Range Empty Speaker Cabinet Labyrinth Solid Wood Strengthening Bolts Inside for Tube Amp
This speaker cabinet is made of solid wood with strengthening bolts inside, suitable for 4-inch and 3-inch full-range speakers.
Built-in a labyrinth structure, it can enhance the low-frequency radiant energy, make low-frequency dive deeper, effectively overcoming insufficient bass of commend full range speaker cabinet, make the speaker cabinet the full-frequency be more full and rich.
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.
The tube amplifier is used vacuum tube 6P14 as power amplifier.
A HIFI CD Player with Dual Vacuum Tube 6N3/GE5770 Output
This is a HIFI CD player with vacuum tube output, and product quality is reliable and very stable, durable, good effect. As a high quality CD player, the key parts are movement and decoding. The CD player adopted high quality movement and its servo circuit clock using active crystal, reducing the shaking of movement, so that it has very strong and accurate reading disc ability. And, its decoding part adopted absolute praise DAC decoder chip PCM1795).
About its output part, it adopted vacuum tube to amplify the output, which has a low internal resistance, good linearity, the so-called digital sound for CD player had greatly improved. With this tube CD player, you are no longer a junior audiophile, its sweet sound you will miss, and unforgettable.
Our engineers specialized in sound sourcing for CD player and decoder design, and have more than 15 years experiences, and our goal is to pursuit perfect sound quality. Researching and development for our products must undergo a rigorous testing and tuning, product type approval or appraisal must pass a number of audition and tuning and trial run.
IWISTAO HIFI Mini Tube Amplifier 2x3W Class A Single-ended 6J1 Preamplifier 6P1 Power Stage plus Tone Adjustment Preamp
This is a mini class A single-ended tube amplifier, which use tube 6J1 as a preamplifier, and tube 6P1 as a power stage. Especially, it adopted switching power supply instead of power transformer to reduce the weight and volume of tube amplifier, also adopted boost circuitry to provide high voltage, its background noise is mostly between 0.5 mV to 1 mV, when volume potentiometer close to the minimum, and your ear touch to the speaker, and hum is not likely to be heard.
And, the preamplifier has tone control functions and adopts class A power, sound extremely delicate, slender high-frequency, low frequency plump and elastic, if use top op amp IC like as OPA2604 or LME49720, it will achieve perfect sound. Specially, it used a R-type audio dedicated transformer. And it has direct access function; you can skip tone adjustment to achieve original sound completely.
When audio sourcing record, speaker unit, placing the device is not necessarily perfect, and if your preamplifier adopt pure straight, it may not be able to meet the demand. At this moment, add tone adjustment function is very important. If you no extra power supply equipment, passive preamp tone is preferred, which can enhance the effect of high and low frequency is obvious.
