Experienced engineers on HEF188 R & D : “After the Audio test of the first edit of AD1865,I am fall in love with the classic nobler DAC. It is very difficult that the chip bring into full play perfectly. From year 2004 to now, we have developed and tested for a long time. We changed the circuit and the layout of PCB. We have made 8 models, after tested and amended for heaps of times. And now we are satisfied with and confidence for its performance and voice, so we show it with you who are funs of stereo system.”

HEF188 Technical Specification:

• Standard input: Coaxial SPDIF, Optional input: USB-SPDIF，AES/EBU
• Input sample rate: 44.1, 48, kHz/16/18BIT Auto detection
• Signal to Noise ratio:>110db
• Dynamic range：105dB
• Total Harmonic Distortion：1KHZ%0.005
• Rated Power: 2VPP
• Frequency Response: 20-20kHz-0.2db
• Total Power >30W
• Dimensions: 430*270*65mm
• Weight: 5.2kg

In the packing box the items include: the machine,the manual, USB line, the remote control. will enjoy free warranty for one year.
Note: If you open up the machine by yourself, you can not enjoy the free warranty.

The HEF188 uses 220-240V AC voltage as the standard input voltage, if you want to use other AC voltage, please note us before you purchase it.
Tips: Country’s voltage specs: 110V (USA, Canada, etc), 220V (Europe, Asia, etc), or 240V (Australia)

This DAH1 MARK Decorder are specially designed by YULONG audio engineers. The concept is towards an user-friendly integrated DAC Amplifier, which only require a personal computer. This DAC Amplifier is capable of driving your headphone/preamp or speaker to achieve audiophile quality sound. Despite of  its competitive pricing, it doesn’t compromise in any aspect of sound reproduction thus you can spare for other tweaks/gadgets in audio device/sources/preamp/interconnect cable. In terms of price per performance ratio, currently this DAC amplifier has the best bang for bucks.

• This DAC Amplifier will benefit greatly from high quality interconnect cable, power cord and other tweaks.
• Each unit comes with a exclusive portable remote controller.

•The heart of this DAC Amplifier lies in the main processing DAC chip which is AD1955. AD1955 is widely known for its excellent sound performance and benchmark for other high-end DAC on the market. The circuit topology used is a combination of DA1955 DAC and HEF188 headphone amp which controlled by CPU. There are no reduction in components nor quality of components used in original DA1955 and HEF188 circuit. In order to obtain the optimum performance, PCB routing is redesigned in more compact manner. Based from the customer feedbacks of DA1955 and HEF188 and our professional experiences in product design, we managed to fine tune the circuit topology to achieve optimum performance.

• With built-in MCU and the flagship Digital Volume Controller (CS3310) from Cirrus Logic, multiple standard Input/Output ports are available to provide flexibility for the user. For input, SPDIF, Coaxial, USB, analog input (RCA) are provided while headphone output, DAC output, and circuit output are for output part. This product is a multi function product which provides multiple modes for user convenience as well.

Available modes:
1. DAC + headphone amplifier: Switch on the power, press MODE button from the front panel to choose various input signal(SPDIF,Coaxial,USB), adjust the volume, plug in headphone to PHONE and start to enjoy the music.

2. DAC: Switch on the power, press MODE button to select preferable input signal mode, signal out from the DACOUT.

3. Headphone amplifier: Switch on the power, use MODE button to select PCM LINE status, adjust volume, connect headphone to PHONE.

4. DAC + Preamp : Switch on the power, press MODE button to select input signal, signal out from the LINEOUT.

•DAH01 Stereo DAC sound characteristic: great dynamic, wide and deep soundstage, excellent instrumental separation, sweet and natural sounding. This DAC’s headphone amp has a high output power which capable of driving all range of headphones ranging from low impedance to high impedance. The DAC’s preamp output has low output impedance, which ease for pairing it with any speaker amplifier on the market.
•Attention: Please adjust the volume, wave to 50% out of maximum value to prevent distortion in the sound and degradation in overall performance
•DAH01 technical specification
•Standard input connector: SPDIF, Coaxial, USB, analog input (RCA)
•Input Frequency: 44.1，48，96KHZ/16/24BIT auto-recognized
•SNR: >115db
•Dynamic Range: 110db
•THD+N: 1KHZ%0.0008
•Frequency response: 20-20KHz-0.1db
•DAC power:<20W
•Headphone’s out power: 300R/200mw
•Dimensions: 180*250*55mm
•Weight: 2kg

To have a set of PC hifi audio system with high-quality, small size and professional quality is the best choice for our work and entertainments!
But how to find the satisfied system for our PC hifi?

High level speakers and an enough power amplifier with high quality, small size (easy to place) and high efficiency (besiders environmental protection and energy conservation, we must have to consider the efficiency) match well become the single choice for us! Where to find this kind of amplifier? AMPONE made by YULONG Audio is just the one based on these ideas!

The design target of sound for AMPONE is to achieve the desired effect with the matched speaker: sweet, smooth, slide,  fine! It can analyze the slightest details, give full play to the dynamics and the scene in great details!  Through YuLong Audio engineers designing meticulously and testing repeatedly in a variety of occasions ,it can achieve the desired effect completely!

The design target of practicality for YULONG Audio AMPONE is small size, high efficiency and enough power. At the same time, it must have a good voice. It looks as if it is not possible?  But YuLong Audio have completed through the ingenious design as follows: Fully use the aluminum chassis for heat elimination to satisfy the requirements that the power can be amplified with small size. Carefully adjust the simple and classic circuit composed of discrete components to achieve the sound performance effects. Both the amplify circuits and the part of circuits of small current  in the drive class operate in the best linear state of class A. The current consuming power tube operates in the class A and B with small current.Through good match between the former class and the back class,it can achieve a good voice and high efficiency!

YULONG AMPONE has the best protection circuit, each of the components used must be tested by QC before we begin to produce.In order to ensure the machine’s consistency and stability.,before the finished products are to be sold, we must have a series of performance testing strictly, voice testing, aging experiments and so on.

Under the well-known monitoring speakers, such as the drive Dynaudio BM5P Audience 42,52 and the ATC SCM7, AMPONE has a fairly good performance!

Specifications:
● THD:        0.02% (30W 8Ω 20Hz – 20KHz)
● R.M.S:      40W +40 W (8Ω)
● P.M.P.O.:  250W +250 W (8Ω)
● Frequency Response: 20-200KHz-0.1db
● Dimensions:  180 * 250 * 55mm
● Net Weight:  2.5Kg

The characteristic voice of DAH1 MARK II : The sound is strong and real, it can analyze the slightest details, give full play to the dynamics and the scene in great details. The sound is fine,delicate,smooth,sweet and natural. The headphone output of the machine can drive the majority of traditional headphone directly to achieve better results. The impedance of the former output is also low, with a power amplifer, it can be more easily to drive the speakers.

The DAH1 MARK II is specially designed by YULONG Audio engineers. The concept is that you need not any sound resource,if you have a PC, you can connect the machine to drive the headphone, power amplifiers, or speakers directly to achieve the best sound. The users can save the cost of sound resources,interconnect cable,preamp and headphone.

The main chip of this DAC Amplifier is AD1955 in which we have many years of practical experience. AD1955 is widely known for its excellent sound performance and its performance indicators is the best now. The circuit structure we learn from is as follows: DA1955 audio decoder, DAH1 multifunction audio processor, DAH1 MARK multifunction audio processor and headphone drive circuit designed by YuLong Audio engineers meticulously. The working state is controlled by the CPU and displayed with the LCD. So it is easy to operate.The components we used are the best, such as the refined aluminum shell,gold-plated USB interface, RCA interface, headphone interface, dedicated audio OPA2134 and the import high-quality components with the fanciers class(different from the staking of DIYER, we have many years of design experience about these components). We use the advanced solid capacitor PAS and SEP which used in the high-end computer’s motherboard to supply.

DAH1mark II is an upgrade product based on the former two generations products.
1,Use SMD components, the PCB redesigned completely takes the spider-type grounding wiring method, the signal to noise ratio is very high,left channel and right channel are completely symmetrical, the ground wire is separated, the channel can work independently, so that you can hear the analysis of very high intensity, quiet background, and good separation.

2,The drive circuit of headphone is also redesigned, it uses PHILIPS tubes to match with the sound parameters we adjusted carefully and the components we selected carefully. The sound effects is fine and tender,natural, without losing the dynamics and drive capability.

3,Fully use the import J SMD components in the produce and we achieve the better sound quality perfoumance(A package of an ordinary K SMD capacitance sales 30RMB, while the same quantity and same function package of the import K SMD capacitance sales 1000RMB).

4,We cancel the electronic volume control for it can make some small noise, now we replace it with the imported high-precision potentiometers.

5,We cancel the LINEOUT port and add the balance output version (optional).

6,We cancel the functions of preamplification and remote control,now we focus more on the sound effort.

7,We add the pure DAC mode so as to improve the quality of the machine.

Because DAH1 MARK II uses the high-performance solid-state capacitors, it doesn’t work its the best state until the power is on for some time.

The new machine may be a slight sense of roughness, please keep the power on for more than 200 hours to listen again.

Functional operation modes:
1. DAC + headphone amplifier: Switch on the power, press MODE button from the front panel to select various input signal(SPDIF,Coaxial,USB), adjust the volume, plug in the headphone to PHONE and start to enjoy the music.

2. DAC: Switch on the power, press MODE button to select the input signal, adjust the volume to the left to the minimum to turn off the headphone amplifier,signal output from the R OUT L.

3. DAC + Pre amp : Switch on the power, press MODE button to select the input signal, signal out from the PHONE through 6.35-RCA port.

4.Balance Decoding mode: (Required to purchase,the standard version is RCA output)THE operation is the same as the RCA version, the output mode is the balance (XLR) port.

Notes:If the sound card is used as the diginal input or USB input,please adjust the volume and waveform to the medium in the PC, if you adjust to the maximum,the output distortion of the sound card is also the largest, it will affect the performance of the machine.

The DAH1 MARK II uses 220-240V AC voltage as the standard input voltage, if you want to use 100-120V AC voltage, please note us before you purchase it.

DAH1 MARK II Technical Specification:

• Standard input connector: SPDIF, Coaxial, USB, Analog Input (RCA).
• Input Frequency: 44.1，48，96KHz/16/24Bit auto-recognized.
• SNR: >115Db.
• Dynamic Range: 110Db.
• THD+N: 1KHz%0.0006.
• Frequency response: 20-20KHz-0.1Db.
• DAC power:<20W.
• Headphone’s out power: 300R/200mW.
• Dimensions: 180*250*55mm.
• Weight: 2Kg.
• Packing Size: 320 * 230 * 120mm

In the packing box the items include: the machine,the manual, USB line,the remote control. will enjoy free warranty for one year.
Note: If you open up the machine by yourself, you can not enjoy the free warranty.

Play method we recommend:

1,The most cost-effective options: USB connect to the PC, headphone plug in the HEADPHONE port.

2,Give full play to the best performance of the machine: using the digital output of the high-end sound card or the dial as the coaxial input of the machine, and then connect the high-end headphone amplifiers or power amplifiers to dirive the speakers from the DAC output, at the same time you should ensure the power cord and signal lines must be more better.

The All-New Little Dot MK IV is our flagship headphone amplifier/pre-amplifier in the Little Dot MK-series. Boasting a SEPP (OTL) in Class-A circuit design filled with high quality components such as an ALPS-27 potentiometer, Nichicon, Rubycon, and German WIMA/ERO capacitors, the Little Dot MK IV is truly our best effort yet. Regardless of whether your headphones are 32 ohms or 600 ohms, the Little Dot MK IV can drive them easily with effortless dynamics (45Vp-p!) , subterranean bass, cavernous soundstage, and precise 3-D imaging.

The Little Dot MK IV also adds in user-tweaking options such as two gain switches to delivery maximum compatibility with all your headphones, regardless of impedance or sensitivity. Also available for the very first time in a Little Dot amplifier, is an internal jumper to allow use with a wider range of driver tube-rolling, including the EF92, CV131, WE403A/B, GE5654, M8100, CV4010, EF95, 6JI as well as all equivalents, derivatives, and direct replacements to these vacuum tubes!

Technical Specifications:

• SEPP (Singled-ended Push Pull) OTL in Class-A
• Frequency response: 10 hz~100 Khz (-1dB)
• THD+N: 0.1% (100 mW @ 300 ohm)
• Power Output:
• 500 mW @ 300/600 ohm
• 300 mW @ 120 ohm
• 100 mW @ 32 ohm
• Power Consumption: 30W (228V x 0.133A)
• Variable Gain: 3,4,5, or 10x
• Recommended Load Impedance: 32 ohm~600 ohm
• Input Impedance: 50K ohms
• Pre-Amplifier Output Impedance: 600 ohms
• Pre-Amplifier Gain: 3-10x (also controlled via gain switches)
• Pre-Amplifier Voltage: 10V RMS
• Pre-Amplification circuit includes both driver and power tubes
• Driver Tubes: 2x JAN 5654 (MK IV) or 2x M8100 (MK IV SE)
• Power Tubes: 2x Soviet 6H30EH (MK IV) or 2x 6H30PI Gold-Pin (MK IV SE)
• High quality aluminum chassis
• Neutrik Headphone Jack (SE version only)
• American CMC/Van Den Hul RCA Jacks (SE version only)
• Dimensions (Metric): 320mm deep by 220mm wide by 143mm high
• Dimensions (English): 12.6 inches deep by 8.66 inches wide by 5.62 inches
• Weight: 3.5 Kg or 7.7 lbs
• 1 Year Little Dot Warranty (2 Year Little Dot Warranty for MK IV SE)

Power Cord Note: Little Dot amplifiers ships with a standard Type-B power cord (American 3-pin or U-ground) suitable for use in areas such as North America, Japan, Taiwan, etc. If your country’s outlets use other power cord types (ex. Schuko) you will need to provide you own power cord. You likely have several spares around your home, as any standard power cord (like your computer’s power cord) will work perfectly fine. We do apologize for any inconvenience!

Please note that the photos shown are from both the Little Dot MK IV and the Little Dot MK IV SE. The appearance of both versions is virtually identical with only the following differences:

1. SE version has label “Little Dot MK IV SE” instead of “Little Dot MK IV” on the front panel.
2. SE version has Neutrik-branded headphone jack
3. SE version has American CMC or Van Den Hul branded RCA jacks
4. SE version ships with different driver and power vacuum tubes

Note: Photos are for illustrative purposes only. Please refer to the product description for the most explicit and up-to-date specifications, components, parts, tubes, accessories, etc.

* The MK series is the new generation of Little Dot amplifiers, and the MK III is the “sweet-spot” of the line. Superior performance with much higher stability and reliability, the MK series trumps our previous amplifiers in nearly every category!* Vacuum tubes are subject to availability, so please inquire as to the current included “stock” vacuum tubes if in doubt. Little Dot reserves the right to substitute equivalent, equal-value tubes in the case “standard” tubes are not available.
* Available in either 120VAC or 220VAC
* $194 plus $45 shipping to USA, Canada, Australia, and most of Asia
* $194 plus $51 shipping to most of Western Europe
* Please inquire for other destinations.
* Additional Tube Sets (2x 5654, 2x 6H6PI (6H6n) ): $35 (plus applicable shipping fees if purchased separately from amplifier)
* 1 Year Warranty

The All-New Little Dot MK III succeeds our Little Dot II++ by improving upon it in every possible way. Boasting the highest stability and sound quality yet, the sound-stage realism and imaging precision have improved dramatically over our previous amplifiers, and even at high volumes the Little Dot MK III delivers a smooth, non-fatiguing sound with no hint of dynamic compression or imaging fuzz. Of course the liquid warm midrange tube lovers expect is here in spades, balancing right in with a dynamic low-end and a sweet, airy treble. Tracking precision with low distortion is provided by an ALPS-16 potentiometer, and Rubycon, German WIMA and ERO capacitors ensure the internal circuitry is built with quality in mind.

The Little Dot MK III also adds in user-tweaking options such as two gain switches to delivery maximum compatibility with all your headphones, regardless of impedance or sensitivity. Also available for the very first time in a Little Dot amplifier, is an internal jumper to allow use with a wider range of driver tube-rolling, including the EF92, CV131, WE403A/B, GE5654, M8100, CV4010, EF95, 6JI as well as all equivalents to these vacuum tubes!

Technical Specifications:

• SEPP (Single-Ended Push Pull) OTL in Class-A
• Frequency response: 12 hz~100 Khz (-1dB)
• THD+N: 0.15% (80 mW @300 ohm)
• Power Output:
• 350 mW @ 300/600 ohm
• 300 mW @ 120 oh
• 100 mW @ 32 ohm
• Variable Gain: 3,4,5, or 10x
• Recommended Load Impedance: 32 ohm~600 ohm
• Input Impedance: 50K ohms
• Pre-Amplifier Output Impedance: 600 ohms
• Pre-Amplifier Gain: 3-10x (also controlled via gain switches)
• Pre-Amplifier Voltage: 10V RMS
• Power Consumption: 30W (228V * 0.130A)
• Pre-Amplification circuit includes both driver and power tubes
• Driver Tubes: 2x GE5654
• Power Tubes: 2x Soviet 6H6PI (6H6n, 6H6nN)
• High quality aluminum chassis
• Dimensions (Metric): 270mm deep by 175mm wide by 123mm high
• Dimensions (English): 10.6 inches deep by 6.9 inches wide by 4.8 inches
• Weight: 3 Kg or 6.6 lbs
• Vacuum tubes are subject to availability, so please inquire as to the current included “stock” vacuum tubes if in doubt. Little Dot reserves the right to substitute equivalent or better tubes in the case “standard” tubes are not available.
• Available in either 120VAC or 220VA

Power Cord Note: Little Dot amplifiers ships with a standard Type-B power cord (American 3-pin or U-ground) suitable for use in areas such as North America, Japan, Taiwan, etc. If your country’s outlets use other power cord types (ex. Schuko) you will need to provide you own power cord. You likely have several spares around your home, as any standard power cord (like your computer’s power cord) will work perfectly fine. We do apologize for any inconvenience!

The new Little Dot I+ is a hybrid transistor-vacuum tube headphone amplifier, which combines the smooth, musical sound of tubes with the high output current of transistors. The vacuum tube stage is run in Class-A, the MC33078 operational amplifier (socketed) provides voltage amplification, and BD139/BD140 transistors serve as output buffers. The Little Dot I+ is perfect for driving low impedance headphones that require gobs of current to perform to their full potential. With two gain settings and DIP switches for vacuum tube rolling, the Little Dot I+ offers versatility and incredible sound quality in a tiny footprint!

The Little Dot I+ includes the following tube-rolling options (as well as their equivalents):
6JI, WE403A/B, GE5654, M8100, CV4010, EF95
EF92, CV131
WE408A

Little Dot I+ Technical Specifications:

• Input: Gold-Plated Unbalanced Phono (RCA) Jacks
• Output: 1/4″ Gold-Plated Stereo Headphone out
• Tube Options:
• 6JI – standard
• Replace standard tubes with EF92 – additional $20 USD
• Replace standard tubes with WE408A – additional $50 USD
• Frequency Response: 10HZ – 50KHz (-3 dB)
• THD+N:
• 0.2%: 1Vrms @ 1000Hz
• 0.6%: 3Vrms @ 1000Hz
• 1.0%: 5Vrms @ 1000Hz
• Signal-to-Noise: 92dB
• Suitable Headphone Impedance: 8 – 600 ohms
• Input Impedance: 50K ohms
• Power Output:
• 150mW @ 300 ohms
• 300mW @ 120 ohms
• 800mW @ 32 ohms
• User variable gain settings: 6.5x or 3.25x
• Power Consumption: 15VA
• Measurements:
• Metric: 180mm (L) by 97mm (W) by 100mm (H)
• English: 7.08 inches (L) by 3.81 inches (W) by 3.93 inches (H)
• Weight: 1.5 kg or 3.3 lbs.
• Available in Black
• Available in either 120VAC or 220VAC

Power Cord Note: Little Dot amplifiers ships with a standard Type-B power cord (American 3-pin or U-ground) suitable for use in areas such as North America, Japan, Taiwan, etc. If your country’s outlets use other power cord types (ex. Schuko) you will need to provide you own power cord. You likely have several spares around your home, as any standard power cord (like your computer’s power cord) will work perfectly fine. We do apologize for any inconvenience!

Purchasing Instructions:

At the time of purchase, please indicate the following information in your EBAY checkout notes section, PayPal payment notes section, or in a separate email/EBAY message:

Note: Please note that the photos shown are with the WE408A tubes. The default tubes for the Little Dot I+ are the 6JI tubes. Photos are for illustrative purposes only. Please refer to the product description for the most explicit and up-to-date specifications, components, parts, tubes, accessories, etc.

The successor to the Little Dot MK I, the new Little Dot MK I+ takes advantage of American National Semiconductor’s newest offerings in ultra-low distortion circuit components: LME49710HA high fidelity operational amplifier and the LME49600 high performance current buffer. The new power supply consists of two 3.7V 700mA/h Lithium-Ion battery to provide up to 30 hours of high current, ultra-low distortion power to your headphones. Circuit stability and reliability over the previous Little Dot MK I has been markedly improved as well.

* Excellent performance in a small, stylish package!
* $169 USD plus shipping for Gold Version (Metal chassis, pre-amp stage op: LME49710HA x 2)
* $139 USD plus shipping for Normal Version (Plastic housing, pre-amp stage op: LM4562)
* $25 shipping to USA, Canada, Japan, and most of Oceania, and SE Asia (excluding India)
* $29 shipping to most of Europe, Middle East, and South America
* 1 Year Warranty

The Little Dot MK I+ also has exceptional compatibility with a wide variety of IEMs, earphones, and full-sized headphones due to its user-selectable three gain settings, as well as output current control via internal jumpers. When jumper caps are set in place, output current increases by 80%, dramatically improving dynamics, impact, and low frequency response with the trade-off of lower battery life.

There are two version of the Little Dot MK I+: the Normal Version and the Gold Version. The Normal version has a plastic housing and uses the LM4562 op-amp in the pre-amp section. The Gold Version has a metal chassis and uses dual LME49710HA in the pre-amp section.

Little Dot MK I+ Technical Specifications:

• Line Input: 3.5mm (1/8 inch) mini-stereo
• Headphone Output: 3.5mm (1/8 inch) mini-stereo
• Frequency Response: 5 Hz (-0.6dB) to 200KHz (-0.3db)
• THD+N: 0.0010% (1V @ 1000 Hz)
• Suitable Headphone Impedance: 8 – 300 ohms
• Input Impedance: 20K ohms
• Power Output: 200mW (32 ohms)
• Gain Factor: 1, 2, 4x (User Selectable)
• Battery Life: up to 30 hours per charge
• Battery Overcharge Protection
• Universal Voltage AC Charger/Adapter included (Type B plug)
• Measurements:
• Metric: 95 mm (length) by 70 mm (width) by 24 mm (height)
• English: 3.74 inches (length) by 2.75 inches (width) by 0.94 inches (height)
• Weight: 192 g (includes internal battery)
• 1 Year Little Dot Warranty

Note: Photos are for illustrative purposes only. Please refer to the product description for the most explicit and up-to-date specifications, components, parts, tubes, accessories, etc.

stop production

* The heir to the Little Dot II++, the Little Dot MK II offers improved sound quality and stability, maintains the exceptional price-for-performance ratio the Little Dot II++ was famous for!
* $140 plus $39 shipping to USA, Canada, Australia, and most of Asia
* $140 plus $45 shipping to most of Western Europe
* Additional Tube Set (2x 6JI, 2x 6N6): $25 (plus applicable shipping fees if purchased separately from amplifier)
* Please inquire for other destinations.
* 1 Year Warranty

A newly designed SEPP OTL in Class-A circuit (in similar vein to the rest of the MK-series tube amplifiers) greatly increases sound quality, dynamic range, output impedance, and harmonic distortion over the celebrated Little Dot II++. The Little Dot MK II now also provides gain control of 3, 5, and 10 via internal DIP switches for fine-tuning so you can maximize synergy with almost any headphone you have, whether it be 32 ohms or 600!
The Little Dot MK II also gains the driver tube-rolling options from the rest of the MK-series with the ability to roll 6JI, WE403A/B, GE5654, M8100, CV4010, EF95, etc at its factory jumper setting, and with jumper pins shorted, EF92, CV131, and all equivalents and drop-in replacements!

Little Dot MK II Technical Specifications:

• SEPP (Single-Ended Push Pull) OTL in Class-A
• Input: Gold-Plated Unbalanced Phono (RCA) Jacks
• Output: 1/4″ Gold-Plated Stereo Headphone out, Gold-Planted RCA pre-amplifier out
• Driver Tubes: 6JI
• Power Tubes: 6N6
• A newly designed SEPP (single-ended push-pull) circuit which improves the output dynamic range and sound quality far better than the old LD II++, which used a cathode output circuit.
• High quality ALPS-16 Potentiometer provides far better tracking between channels, which translates into more precise sound imaging.
• Upgraded circuit components include high quality NICHICON and German WIMA/ERO capacitors.
• Improved Pre-amp functionality
• Includes transient voltage suppression diode to shunt off voltage spikes.
• Frequency Response:
• 20HZ – 50KHz (-1 dB)
• THD+N: 0.1% (50mW into 300 ohms)
• Suitable Headphone Impedance: 32 – 600 ohms
• Input Impedance: 50K ohms
• Pre-Amplifier output impedance: 600 ohms
• Pre-Amplifier Gain: 3-10x (also controlled via gain switches)
• Pre-Amplifier Voltage: 10V RMS
• Power Consumption: 28W (228V * 0.124A)
• Pre-Amplification circuit includes both driver and power tubes
• Power Output:
• 300mW @ 300/600 ohms
• 200mW @ 120 ohms
• 100mW @ 32 ohms
• Measurements:
• Metric: 210mm (L) by 110mm (W) by 130mm (H)
• English: 8.26 inches (L) by 4.33 inches (W) by 5.18 inches (H)
• Weight:
• 2.5 kg or 5.5 lbs.
• Available in Black
• Available in either 120VAC or 220VAC

Power Cord Note: Little Dot amplifiers ships with a standard Type-B power cord (American 3-pin or U-ground) suitable for use in areas such as North America, Japan, Taiwan, etc. If your country’s outlets use other power cord types (ex. Schuko) you will need to provide you own power cord. You likely have several spares around your home, as any standard power cord (like your computer’s power cord) will work perfectly fine. We do apologize for any inconvenience!

This Picture is LittleDot II Plus

The All-New Little Dot MK VI is our flagship headphone amplifier/pre-amplifier in the Little Dot MK-series. A fully balanced architecture, the Little Dot MK VI has exceptional dynamic range and can produce clean amplitudes of 70Vp-p into 120 ohms! The balanced Class-A SEPP (single-ended push pull) OCL (output capacitor-less) circuit topology delivers rich tonality and brute force clean power for maximum dynamics and low frequency impact. The MK VI Headphone amplifier suitable for AKG1000/HD650/HD600/HD580 balance wiring (4 lines) of the headphone driver .* A fully balanced SEPP OCL Tube Amplifier in Class-A, the Little Dot MK VI is our flagship headphone amplifier.
* $684 plus $95 shipping to USA, Canada, Australia, and most of Asia
* $684 plus $130 shipping to most of Western Europe
* Please inquire for other destinations.
* 1 Year Warranty

We carefully selected quality components to make up the Little Dot MK VI circuit, and you will find Neutrik, ALPS, Vishay-Dale, WIMA, ERO, and CHEMI-COM among the critical circuit components used.
The Little Dot MK VI also adds in user-tweaking options such as two gain settings to delivery maximum compatibility with your headphones.

Little Dot MK VI Technical Specifications:

• Fully Balanced Architecture
• SEPP (Single-ended Push Pull) OCL (Output CapacitorLess) in Class-A
• Inputs: 3-pin XLR
• Outputs:
• 3-pin XLR pre-amplifier outputs
• 4-pin XLR headphone output
• Frequency Response:
• 5Hz – 80KHz (-3dB)
  10Hz – 30KHz (-1dB)
• THD+N:
• 0.02% (2Vrms @ 1000Hz)
  0.06% (10Vrms @ 1000Hz)
  0.3% (20Vrms @ 1000Hz)
• Power Output: 5W per channel (120 ohms)
• Signal to Noise: 92 dB
• Input Impedance: 50K ohms
• Pre-amplifier Output Impedance: 600 ohms
• Active 2 fan cooling
• Measurements:
• Metric: 350mm (length) by 290mm (width) by 140mm (height)
• English: 13.8 inches (length) by 11.4 inches (width) by 5.5 inches (height)
• Weight:
• 9.6 kg or 21 lbs
• Available in either 120VAC or 220VAC
• Available in either Black (default) or Silver

Power Cord Note: Little Dot amplifiers ships with a standard Type-B power cord (American 3-pin or U-ground) suitable for use in areas such as North America, Japan, Taiwan, etc. If your country’s outlets use other power cord types (ex. Schuko) you will need to provide you own power cord. You likely have several spares around your home, as any standard power cord (like your computer’s power cord) will work perfectly fine. We do apologize for any inconvenience!

Note: Photos are for illustrative purposes only. Please refer to the product description for the most explicit and up-to-date specifications, components, parts, tubes, accessories, etc.