This is New 2011 Edition – Matrix mini-i 24bit/192kHz Balanced DAC

Features

• D/A DAC chip AD1955 x 2
• Full balanced stereo design
• Up to 24Bit/192kHz sampling
• USB input works with Windows 2000/XP/Vista/7, Linux and Mac OS 10.x, no extra driver needed
• Pre-Amp/HP-Amp and Pure DAC modes switchable
• Low jitter receiver chips and separate clock
• Built-in headphone amplifier, for up to 300 ohm headphones
• OP275/OPA2134 opamps NOT replaceable
• Balanced/Unbalanced outputs
• Various inputs: BNC/RCA/Toslink/AES/EBU/USB
• Large screen LCD display
• Designed and fine tuned for audiophile
• Digital input pass-through via an RCA output, easy connect to another receiver

Specifications

• Digital Input:
  |- Optical: toslink, 32-192kHz
  |- Coaxial: 75 ohm RCA/BNC, 32-192kHz
  |- USB: USB-B, 44.1-48kHz
  |- AES/EBU: Standard XLR balanced, 32-192kHz
• Digital Output:
  |- Coaxial RCA
  |- 32-192kHz
  |- Support AC3/DTS Pass Through
• Analog Interface:
  |- RCA/XLR
  |- Frequency Response: 20-20kHz
  |- Signal to Noise Ratio: 105dB
  |- Dynamic Range: 108dB
  |- Distortion 0.0002% (1kHz)
• Power Support: AC AC 100-120V / 220-240V (Please specify)
• Front Panel Color: Silver
• Case Color: Black/Silver (Please specify)
• Weight: 2 kg
• Device Dimension: 205 x 155 x 48mm (L x W x H)

Package Contents

• Matrix mini-i DAC x 1
• Power Cord x 1
• USB cable x 1
• BNC/RCA Adapter x 1
• Remote Control Optional
• Users Manual

The Matrix Mini-i is equipped with two Analog Devices AD1955 D/A chips that support up to 24 bit and 192kHz through its S/PDIF and AES/EBU inputs, though USB input is limited to 24 bit and 48kHz. There is also a coaxial output that will pass-through the digital signal, including AC-3 and DTS outs. Two OPA2134 is placed at the output of the AD1955, and a TPA6120 is used for the internal headphone amplifier.

“Little Dot Q” may be the best small tube amp ~ ~ CUTE !!!
Diameter:  60 mm, Height:  50 mm

When I just got it, I thought such a small amp (LD Q) will not have any use, listened and found it was a perfect match with iPad, small, personality, perfect sound ……..

Use Little dot Q to drive my headphone – Yuin PK1, iPad is a perfect combination. It increased my desire for music!

Relax, enjoy the beautiful evening, appreciate the bright moonlight, listening to wonderful music ……

The Little Dot Q is a hybrid vacuum tube pre-stage (6n16d), transistor output stage (BC818/BC808 and MC33078) headphone amplifier with DAC (Burr-Brown PCM2704)!

Key Features:

• Input terminals: 3.5mm (1/8″) stereo input jack
• Output terminal: 3.5mm (1/8″) stereo headphone jack
• THD+N: 0.1% (output: 1 Vrms @ 1000Hz)
• Signal/Noise: 92dB
• Frequency response: 10Hz – 50KHz (-3dB)
• Output power: 350mW (32 ohm) 150mW (300 ohm)
• Selectable Gain Settings: Low (Gain of 2.5x) and High (Gain of 5x)
• Headphone impedance range: 8 ohms to 300 ohms
• Power consumption: 10 VA
• Amplifier dimensions: Diameter: 60, Height 50 mm
• Power Supply: 145 (L) x 55 (H) x 50 (W) mm
• Weight: Amplifier: 106 g Power Supply: 890 g

Item included:

• Amplifier x 1
• Power supply x 1
• User Manual x 1

YULONG D100 Key Features:
- Sophisticated design, adequate test and leading test equipments ensure outstanding result: THD+N < 0.0005%, -130dB idle noise and up to 120dB SNR.

- By implementation of ASRC, we have achieved an excellent anti-jitter performance. The input digital audio signal is ASRC processed to 132KHZ with reference to a custom made, 1ppm precision and low phase noise clock source. The output is an extremely low jitter I2S signal to feed into the DAC chip. That results in a very precision digital to analog convert process and not sensitive to input signal quality. So a stable result is maintained within different of front end equipment. In our test, when the input digital signal is added 80ns of jitter, this DAC can produce almost same performance as when there is no jitter added, while another DAC in comparison which is not implemented with ASRC already lost the lock to the signal and cannot work.

- Carefully designed analog circuits, together with the long time listening compared components, bring to the neutral and fine textured sound quality. In general, the DAC is high resolution, extended dynamic and with an extensive sound image.

- The USB input is feed toTAS1020B, a chip with high reputation from Ti, which is widely used in Hi-end equipments for USB solution. The I2S signal from this chip is sent for ASRC then DAC. Thus an equivalent result from USB is achieved, as S/PDIF, Optical or AES/EBU inputs: The THD+N  < 0.0005%.

- This DAC carries a high performance headphone amplifier, and sound style is selectable by pressing the Sound button on the front panel. The default style Mode 1 is natural and dynamic. Switching to Mode 2 will result in a smooth style, which is suitable for bright headphones, or if you prefer more “dark and smooth” sound.

- Two headphone outputs with different impedance: LOW is suitable for headphones with low impedance and high sensitivity such as in ear monitor; while HIGH fits most of bigger headphones. You can also try to get a different sound style by using a same headphone in different outputs.

- Easy operation: Most likely you only need to access the MODE button on the front panel. The last used input channel is stored automatically and will resume when power up. So plug and play your music.

- High quality aluminum housing, custom made gold plated connectors result in a flawless operation, a robust connection and a superior reliability.

- Whether you anywhere: You can select 110/120V or 220/240 operating voltage.?

Input:
The digital input includes Optical, S/PDIF and AES/EBU, which can connect to most of the equipments with PCM digital audio signal up to 24bit/192KHZ, such as CD, DVD or sound card.
By selecting USB mode by pushing the INPUT button on the front panel, this DAC can be used as a USB sound card, and supports WINDOWS 7, VISTA, XP, MAS OS and LINUX.

Output:
The unbalanced RCA coaxial line level output and the balanced line level XLR output on the back panel can connect to amplifiers or active speakers. And the Headphone output on the front panel can connect to headphones with impedance from 16 to 600 Ohms.
WARNING!!!! Both of the RCA and XLR line level outputs are NOT controlled by the Volume knob on front panel, and as always in full output level. Any equipment connected to these outputs must has a proper volume control, otherwise might be damaged. It might harm the hearing of audience too. We are not responsible for any kind of such results.

YULONG D100 Technical Specifications:
- Inputs: Optical, Coaxial, USB, AES/EBU
- Input digital signal format: 32-192 KHz, 16/24 Bit auto detection. USB supports up to 24Bit 96KHz
- SNR: >120dB.
- Dynamic Range: 115dB.
- THD+N: <0.0005% at 1KHZ
- Frequency response: 20-20KHz-0.16dB.
- Power consumption: <20W.
- Headphone output power: 130mW at 300Ohm, and 900mW at 32Ohm

Chassis to connect AC ground test
- Dimensions: 250*180*50mm.
- Net Weight: 1.5Kg
- Packing Size: 300 * 300 * 100mm

Include in the packaging:
- This DAC
- User manual
- USB cable
- Power cable

Note: One year free warranty. The warranty is void, if the DAC is opened not by us.
Technical change notification: sampling rate 132KHZ modified to 110KHZ

* The smallest tube and transistor mixed headphone amplifier
* The direct heating tube of military micro-Core Technology
* Advanced circuit design, matches headphones of very low to very high impedance.
* 2-way switches for gain control (Low/High) and impedance matching (Low/High), provides the flexibility for user to perform the adjustment manually.
* Offers very wide frequency response by not using any coupling capacitors or output capacitors
* Low frequency compensation switch (bass extension) and sound stage compensation switch (stage expansion) These switches can be turned on to deliver more enjoyable listening experience for users who love deeper,
* heavier bass and wider sound stage. Or they can be turned off for users who desire high fidelity sound.
* Multiple medium power transistor-based output stages in parallel connection, contributes to high current output and low output resistance and precise output control. Step-up circuit activates when IM is set to high, generates high voltage, high quality power for the needs of driving medium and high impedance headphones.
* High quality for audio ALPS potentiometer as volume dial
* High performance lithium rechargeable batteries, with overcharge & low voltage protection circuit
* Intelligent, regulated charging circuit allows user to enjoy music while charging the C&C XO.
* FOUR 1000uF power supply filtering capacitors ensures pure and smooth power
* Easy and flexible OP exchange for advance users, through gold-plated DIP socket,
* Maximum output power: 1000mW+1000mW
* Impedance matching capability: 8-600ohm
* Total harmonic distortion plus noise (THD+N) < 0.01%
* Frequency response: 0-100kHz/1dB
* Long usage time between recharge: up to 60 hours for low impedance headphones, up to 25 hours for high impedance ones.
* Portable size: 91mm x 70mm x 20mm (aluminum case, with glossy surface)
* Weight (battery inclusive): 170g
* Power input: 100-240V, 50/60Hz; 12V DC.
* Come with one EU adapter and 3.5-3.5 high end cable!

* Advanced circuit design, matches headphones of very low to very high impedance.
* 2-way switches for gain control (Low/High) and impedance matching (Low/High), provides the flexibility for user to perform the adjustment manually.
* Offers very wide frequency response by not using any coupling capacitors or output capacitors
* Low frequency compensation switch (bass extension) and sound stage compensation switch (stage expansion) These switches can be turned on to deliver more enjoyable listening experience for users who love deeper,
* heavier bass and wider sound stage. Or they can be turned off for users who desire high fidelity sound.
* Multiple medium power transistor-based output stages in parallel connection, contributes to high current output and low output resistance and precise output control. Step-up circuit activates when IM is set to high, generates high voltage, high quality power for the needs of driving medium and high impedance headphones.
* High quality for audio ALPS potentiometer as volume dial
* High performance lithium rechargeable batteries, with overcharge & low voltage protection circuit
* Intelligent, regulated charging circuit allows user to enjoy music while charging the C&C XO.
* FOUR 1000uF power supply filtering capacitors ensures pure and smooth power
* Easy and flexible OP exchange for advance users, through gold-plated DIP socket,
* Maximum output power: 1000mW+1000mW
* Impedance matching capability: 8-600ohm
* Total harmonic distortion plus noise (THD+N) < 0.01%
* Frequency response: 0-100kHz/1dB
* Long usage time between recharge: up to 60 hours for low impedance headphones, up to 25 hours for high impedance ones.
* Portable size: 91mm x 70mm x 20mm (aluminum case, with glossy surface)
* Weight (battery inclusive): 170g
* Power input: 100-240V, 50/60Hz; 12V DC.
* Come with one EU adapter and 3.5-3.5 high end cable!

Price is another major issue while considering an amplifier. If you have short listed the amplifier you want to buy it is always beneficial to get multiple quotes for it. Look for other factors like warranty and installation procedures. Considering all the aspects and weighing the product on quality and price will help you to identify the best product for you and will certainly help you to derive the output you want from it.

Just check out why you need the amplifier for. The selection of an amplifier greatly depends on the gadget and its usage environment. The buying decision also depends on the technical aspects involved in an amplifier like the gain, output dynamic range, bandwidth, slew rate, noise and efficiency. Check al this aspects in general with your gadget for which you want to use the amplifier with. For this go through your owners guide manual carefully and check out the compatible amplifiers. Also verify it from the amplifiers specifications.

If you are wondering what a headphone amplifier is then let us tell you that the headphone amp is an wonderful and functional device which is exactly a miniature power amplifier specially designed to drive small speakers inside a headphone. The headphone amplifiers serve a lot of purpose to produce a clear crisp sound from your headphones and are small yet productive amplifiers.

Item Description:

• StreetWires ZeroNoise7 Oxygen free pure copper wire, feature twisted-pair construction, very flexible.
• This cable ensure the best clarity, dynamics, harmonic structure and tonality while maximizing sound stage, depth.
• You’ll notice an improvement in bass response, mid-range and high-frequency response.
• Pailiccs Golden RCA Stereo Plug.
• The Length is 16 inches, will fit most Headphone Amplifiers.
• Fully compatible with IPOD TOUCH AND IPHONE 3G

Price:

MADE FROM SPECIAL CABLE, PURE COPPER 99.99% OXYGEN FREE (OFC)

This low capacitance cable features OFC twisted pair conductors and a poly-ethylene dielectric. The combination of the twisted pairs, silver plated copper drain wire produces a cable offering superior transfer of the original signal, excellent sound quality, greater RFI rejection and long-term relibitity. Absolutely the best sounding iPod line out interconnect on the market today and tomorrow … even at triple price!!

THE ABSOLUTE BEST iPod LINE OUT CABLE IN THE WORLD!!! 33″ CABLE, 35″ END TO END. PURE COPPER AUDIOPHILE INTERCONNECT CABLE iPOD LINE OUT TERMINATED WITH HIGH QUALITY FULL 24K GOLD-PLATED HIGH PERFORMANCE GRADE LOCKING RCA CONNECTORS. MIL-SPEC HARD GOLD PLATED LOCKING RCA PINS WITH CENTER 4 SLOT. 100% SHIELDED & FLEXIBLE. HAND MADE IN THE USA.

It’s new 2009 version lineout dock cable for iPOD. Made from special cross linked PE insulation cable , pure copper 99.99% OXYGEN free; Pure copper audiophile interconnect cable iPOD lineout terminated with high quality 24K-gold-plated NEUTRIK USA performance grade 3.5mm connector. 100% shielded.

Product Description:

• Braided Copper Shield
• Flexible in Extreme Cold Weather
• Cross Linked PE Insulation
• Reduced Handling Noise
• Rejects EMI and RF
• 6″ cable, 8″ end-to-end

The iPod Compatible 3.5mm to Dock Connector Audio Cable allows you to play music from your iPod through your headphone amplifier or home stereo, car stereo, computer, or notebook.
The dock connector sends line level audio out from your iPod, providing better sound quality then when using the headphone jack.

The dock connector also allows you to control the volume of your iPod through your stereo or computer instead of having to adjust the volume on the iPod. This cable works with all iPods with a dock connector.