A tube headphone amplifier with the most completed functions

A tube headphone amplifier with the most completed functions


May it be a tube headphone with the most completed functions? The anwser is yes, it is one of the most completed ES9018S advanced decoder in the industry currently, which can be used as HIFI headphone amplifier or preamplifier. Built-in XMOS (U8) + ES9018S + Bluetooth CSR BC8670, all functions are currently the best configuration. With the highest level decoding solution at one time, it built in USB digital interface XMOS (U8) program to support DSD hardware decoding, also it adopted HIFI tube-transistor hybrid differential amplifier circuit for headphone with strong driving force and Bluetooth CSR BC8670 programs to support high-quality lossless transmission APTX (I2S input receiving a digital signal after ESS9018 decoding preamp output), at the same time it supports OTG input function from the smartphone. Used a unique Patent tube-transistor hybrid differential technology as discrete components core made, it achieve high-quality pre-amplifier output also.


The sound features of the preamplifier and headphone output is warm, delicate, transparent, fast, wide sound field and very dense. If your amplifier is insufficient driving force or its sound is chilled, you can use it to drive your headphones and earbuds or use it as a preamplifier; its sound quality will have significant improvement that can fully make your equipment sound achieve another higher level. Its unique patented technology for the core tube-transistor differential amplifier with full hybrid discrete components and parts designing, includes tube differential amplifier, preamplifier, driving amplification, power amplification and feedback tube recycling, combines the properties of transistors and tubes, so that it gets more delicate and gorgeous sound, and get transistor sound effect with rich transient, thickness, density of the sound quality, and higher driving force, which cannot achieve the sound quality and height if only depend on tube or transistor circuit designing.

There are main features as below.
1. DAC adopt chip ES9018S, which has 32BIT HyperstreamTM DAC patented structure, and time-domain jitter removal, as well as having a 135dB dynamic range and distortion of -120dB, it is highest level of performance in the industry today. This equipment has been full play the strength of this chip, with its high performance, enough to satisfy the most demanding audiophiles.
2. With Coaxial audio signal can input straight into ES9018S for decoding, it support for external high-quality digital audio.
3. Adopted USB digital interface XMOS (U8) with the highest level of 32BIT / 384KHZ ES9018S DAC decoder IC designing in the industry, it supports DSD hardware decoding solution. The benefits of built-in USB digital interface XMOS U8 and DAC decoding integrated, it obtain the best sound quality based on the shortest distance transport.
4. With the highest levels of audio-specific CSR8670 Bluetooth chip, its support Bluetooth playing. CSR8670 is a high-quality Bluetooth 4.0 chip that supports digital output in the industry, the signal straight output into ES9018S decoding, and support for APTX lossless transmission, powerful and excellent sound quality.
5. Input selections with CD / AUX / Bluetooth / USB (OTG mobile phone support input) / COAXIAL audio.
6. Output options: Headphone output or volume controlled preamp output (balanced and unbalanced, RCA output).

7. Fully discrete power amplifier configuration designed for high-fidelity headphone amplifier, strong driving force. And on the back panel, there is Gain switch, headphone range from 8 to 1000Ω impedance adaptation completely when adjustment.

More detail, please visit http://www.aliexpress.com/store/product/Tube-Headphone-Amplifier-Preamplifier-DAC-12AT7-Bluetooth-4-0-CSR8670-XMOS-ES9018-Decoder-DSD-Balanced-Output/725205_32672977168.html

Why Western Electric cable is so good?

Why Western Electric cable is so good? 

Why Western Electric cable is so good? Because it has a very distinctive features, it is a relatively high frequency soft, delicate but not very bright, transparent midrange, thick but not fat, but also low frequency is more flexible but not a hard, and it is widely used to make HIFI speaker interconnection cable and power cord for tube amplifier, that make the amplifier have pretty good performance, such as high-frequency glitches was silky smooth, overall feeling is very soft.

Those cables that consistent used in sea, military, communication were made of pure copper wire, cotton knit, soft packed which lead to good insulation, so it can play a very good waterproof, fireproof effect. And also, this makes the cable be super soft, you may redeem at any angle, fairly broad applicability.

There are main features for the cable

1. The cable has a special physical structure, internal copper core soft, silver-plated copper core out of white metal, then a gray insulating layer to twine wrapped, pure tone and warm, thick, and is a good choice to produce HIFI speaker cable, power cord.
2. WE gray spots cable, the first outer is layer of cotton, a second layer is plastic, the third layer is 250 pcs 0.25mm outside diameter copper core with coated silver metal.
3. With transistor amplifier, it also has a very good performance, its sound performance is clear, calm, rounded lines, grainy lines outstanding performance, wide sound field depth, and the sound quality is concerned.

Now audiophiles use it to make HIFI power cord or interconnection speaker cables.

There is a HIFI power cord that is made of Western Electric cable and Oyaide 6N OFC gold-plated power plug & socket , it is good choiec for your tube anplifier.

More detail, please visit http://www.aliexpress.com/store/product/HIFI-Power-Cord-Japan-Original-Oyaide-6N-OFC-Power-Plug-Socket-Gold-plated-Western-Electric-Gray/1984109_32669092351.html

High Power 2 x 50W Tube Amplifier with Antique FU13 (813) Tubes

High Power 2 x 50W Tube Amplifier with Antique FU13 (813) Tubes

Tube FU13 (Shuguang 813) belong to antique one, which is a direct thermal beam shot tetrode with thorium tungsten cathode, graphite anode. In the radio equipment, it can be used for the oscillator power amplifier tubes, and its using frequencies are up to 30MC. When it is used as a power amplifier (such as Class AB), its output power is up to 300W or above, it is high reliable, excellent linearity, and not only does it perform tigers’ roaring and thunder exhaustive, but also can perform thin piano voice with detailed and delicate, it is the master of tube amplifier.

FU13 sound is very good, power and life are outstanding, air sense and sound field is far better than with that cannot be compared, you may not want to listen to small power output tube after listeningFU13.It is the first choice to drive low-sensitivity, high-power and high-end speaker.

There is the tube amplifier with tubes FU13.It is a mono-block integrated tube amplifier with 2 x 50W high output power, which is made of pure tubes, adopt 2pcs 12AT7 plus  2pcs 6N8P to drive 2pcs FU13, and its recrifier adopt tube 5Z4P.

 2 x 50W Tube Amplifier with Antique FU13 (813) Tubes

 2 x 50W Tube Amplifier with Antique FU13 (813) Tubes

Details 

Lighting

Features

1. Adopt 2pcs 12AT7 + 2pcs 6N8P as driving amplifier;

2. Adopt 2pcs FU13 as power amplifier;

3. Adopt 1pc 5Z4P as rectifier;

4. RCA signal terminal as high-grade gold-plated, thick gold-plated for 4 ohms / 8 ohms output terminal;

5. Power transformer and output transformer using imported high-sic sheet, high-purity oxygen-free copper wire layer and section production;

6. Volume knob using Japan ALPS type 27 of blue shell;

7. Coupling capacity using MIT of USA.

Product Specifications

1. Rated output power: 50W + 50 W

2. Frequency response: 20Hz – 20kHz

3. S/N ratio: ≥90dB

4. Impedance: 4Ω / 8Ω

5. THD: ≤1% (@1K Hz)

6. Power voltage: 110v or 220v

7. Net wet: 26kg

8. Dimension(L * D * H):455mm * 290mm * 230mm

9. Tubes:

   12AT7 x 2, 6N8P x 2, FU13 x 2, 5Z4P x 1.

10. Accessories:

   Power Cord x 1

More details, please visit  http://www.aliexpress.com/store/product/Tube-Amplifier-2-X-50W-HIFI-Dual-Mono-block-Integrated-Tube-Rectifier-Sound-Field-Control-12AT7/725205_1834003742.html

http://www.aliexpress.com/store/product/HIFI-Tube-Amplifier-Dual-Mono-block-Integrated-50Wx2-Tube-Rectifier-Sound-Field-Control-OTK6H1-6J4P-Driving/725205_1610758465.html

6P6P Class A Signle-ended Tube Amplifier with retro-style bamboo-wood cabinet

Tube 6P6P or 6V6 is specifically designed and developed power output tube for the audio field, sound performance had been proved since it hit market, whenever savored carefully, nostalgic thoughts immediately felt.

Make this power amplifier is based on the classic circuit of 6p6p (6v6) power tube, and we select HIFI components and parts to create this Class A single-ended tube amplifier with traditional scaffolding soldering process by manual, sound satisfactory by users, we would like to share it with all fans! Also with all retro-style bamboo-wood cabinet, it is not only solid and durable, but also easy to perfect match with wooden speaker.

6J1 to drive 6P6P

6J1 to drive 6P6P

Traditional scaffolding soldering process by manual

6J1 to drive 6P6P + parallel dual 6z4 tube rectifier

6J1 to drive 6P6P + parallel dual 6z4 tube rectifier

Lighting

retro-style bamboo-wood cabinet perfectly match with wooden speaker

Features

1. Tubes adapted new production inventory of Shanghai, Beijing, Shuguang, and their parameters have been detected and paired accordingly when assembly, which ensures the balance of the left and right parameters!
2. Adopts BC HIFI coupling capacitors, and gold-plated speakers terminals, high-quality 100k double volume Potentiometer.
3. Its single-ended output transformer (5 kilohms: 4 ohms: 8 ohms) is specifically tailored oriented for this power amplifier, especially in the design of the output parameters according tuning sound method, which lead to it is a unique skill to reproduce human voice.

Specifications (for WVTA-6P6P(S))

1. Rated Output Power: 2 x 4.8W

2. Frequency response: 20Hz-20 KHz

3. Total Distortion: 1% (@ 1 kHz)

4. Input sensitivity: 500mV-- 2000Mv

5. Input impedance: 100k Ohm

6. Output impedance: 4 or 8 Ohm

7. Signal to Noise Ratio : > 89 dB

8. Amp Size (W * D * H): 350 mm * 230mm * 20mm

9. Colors: as photos showed

10. Weight: 5.4kg

More details, please visit http://www.aliexpress.com/store/product/Single-ended-Tube-Amplifier-Class-A-2X4-8W-6J1-Drive-6P6P-6Z4-Rectifier-Retro-style-Bamboo/725205_32654699139.html

What is HIFI RCA Cables?

What is HIFI RCA Cables?

RCA connectors are most commonly used on stereo equipment. In Power Amplifier systems they’re often used to connect a stereo CD player or other consumer electronics devices to the preamplifier board. They’re also used with the aux and tape inputs and outputs. “RCA” is derived from the Radio Corporation of America, the company that introduced the design in the 1940s. RCA connectors are also sometimes referred to as “phono connectors” since they’re used to connect turntables.

At the market, there are a lot of RCA cables like as RCA to RCA, 3.5mm phone jack to 2-RCA cable, and so on. The common RCA cable made of plastic overmolding rather than pure copper RCA connectors. They usually consist of a pair of wires molded together with separate ends color coded for left and right channel in stereo devices.

However, HIFI RCA cable is made of pure copper RCA connecters which are made of copper-plated plug generally, copper shell, and advantages of copper shell can be shielded from external interference and a pair separated OFC wires cable instead of a pair of wires molded together, and then assemble them though soldering with high quality solder. This kind cables offer excellent sound quality for audio and home theater applications, provide maximum sound performance compared to ordinary audio cables. OFC Copper wires provide optimized audio clarity. Pure copper conductor shielding offers protection against noise and interference. The color-coded connectors of the cable allow the users easy installation and identification. Gold-plated, heavy-duty connectors ensure long lasting, corrosion-free connections. RCA Audio/Video cables are used to connect the composite audio signal from the left and right channels on home theater equipment as well as the video signals.

The familiar HIFI RCA cables is two-tailed with one red and one white tail on each end, though some cables might substitute black for white. Many RCA cables have a third yellow tail to deliver a composite video signal. The cable connector is a male push-in, with a thick central pin surrounded by a thicken wall, rounded collar or crown. RCA cabling can also deliver component video signals.

The tails of an RCA cable are color-coded to correspond to the proper input or output jack on electronic equipment. Red tails or black tails connect to the right channel inputs/outputs, while white tails are used for left channels. In reality both wires are exactly the same, so switching colors makes no difference, but it is important that the same color be used for the same channel at each end of the cable. Since “red” and “right” both start with an “r,” it’s an easy way to remember how to connect the cables in a consistent manner, even on components without color-coding.

Much emphasis has been placed on the types of cables used to connect components and the ability to deliver signals without introducing interference. In some cases companies charge enormous amounts of money for cables that are supposed to deliver superior performance. Some of these cables have large, intricately designed molded heads and flashy packaging that necessarily figure into cost but not necessarily performance.

One generally accepted myth is that gold tips or connectors are always superior to silver. While gold does not conduct sound any better, it is non-corrosive and more malleable than silver, which could be an argument for buying gold-tipped plugs for applications where the plugs will be left in place. If the cables will be used in a patch bay where they will be plugged and unplugged often, silver tips might actually be a better choice than soft gold plating that can wear away.

A typical run of up to 10 feet (~3m) does not require an expensive audio RCA cable, though the cheapest possible cable — the type included with many electronic components as a freebie — might not be the best choice. Even still, the average person probably wouldn’t notice a difference between this RCA cable and another. Speaker wire gauge and type has a greater ability to make a discernible difference in audio, all else being equal, than the RCA cable. Choosing a modestly priced cable should do the trick.

HIFI RCA Cables

HIFI RCA Cables

Budweiser RCA connectors 

Budweiser RCA connectors

copper-plated plug, copper shell

 Canare professional broadcast audio cable

Canare professional broadcast audio cable

 Section of Canare professional broadcast audio cable

There is HIFI RCA cable with Canare professional broadcast audio cable and Budweiser RCA connectors as features below.

1. Used Budweiser RCA connectors by U.S, which is made of copper-plated plug, copper shell, and advantages of copper shell can be shielded from external interference.

2. Used Japanese origin Canare professional broadcast audio cable, and commercial grade products don’t achieve its performance, more than 94% of the copper network density to ensure effective shielding of electromagnetic noise. 40 each of the wires from the particular fine 0.08mm copper wire twisted together, particularly good durability. This is Canare send technical application structure model of work, it is a good choice for a lot of HIFI audiophiles to change the cables, its analytical abundantly clear, very good reputation, reliability and durability than ordinary wire several times stronger than the above, cheap affordable, high cost.

3. Used genuine Akihabara 99.99% high purity oxygen-free copper audio signal lines, each line adds four core nerves, its main role restore audio fidelity sound field, so the lossless transmission of audio signals have sufficient safeguards . General transmission line signals of different frequencies have different impedances, this feature on the sound reduction performance of sound vague, production people do this out of the high-end speaker cables called intelligent signal line characteristics of this line the signal level of the frequency is divided into two channels, 5KHZ more signals transmitted by a special material nerves, 5KHZ outer following signals through the transmission line, which greatly improves the frequency characteristics of the transmission line, the reproduction of clear and transparent sound.

4. Use containing 3% silver Senju solders soldering.

5. External plus a network of high-density shock as protection.

6.  It is made by manual.

More detail please visit  HIFI RCA cable

http://www.aliexpress.com/store/product/HIFI-RCA-Cable-Thickened-Wall-Budweiser-Connector-Canare-Professional-Broadcast-Cable-Manual-0-5m-1m-1/725205_2039001906.html