Little Dot MK IV Tube Headphone Amplifier / Pre-amplifier

 NOTE: Buying sample in our AliExpress Retail Store:

http://goo.gl/GVWEIm

The Little Dot MK IV is our flagship single-ended 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)

Power Tubes: 2x Soviet 6H30EH (MK IV)

High quality aluminum chassis

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

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!

1.Voltage

Can you change the voltage and plug?Our voltage is 110V or 220V,and our plug is EU,US or others.
Yes,we will change the voltage and plug according to your shipping address.

2.RMA

Hi seller,I bought one device from your shop before,but it is broken now under warranty,can you help me repair it?

Yes,please send the defective device or wrong device to our Chinese address(please contact our salesman).
Once we received it,we will send you the new replacement or refund immediately.

3.Warranty

I bought your product 7 years ago,but it's broken now,can you repair it?
Oh...Dear friend,our warranty is 1 year,would you like have a try of the newest one?

4.Samples

Hi,man,I love your products too much,can you send me a sample to test?I will place big order in future.
Hi,my friend,Please buy products from our Aliexpress store directly.

/store/601461 

5.Shenzhen Shop

Hi,brother,I am going to Shenzhen,China,can I visit your shop?
Yes,my friend,welcome to our shop,you can have a try of your favorite devices,and it would be better if you could inform me in advance,so I can prepare for your needed devices.
Shop address: 4F9,No.3018,Gume,Wanshang Electric City,Huaqiang north road,Futian zone.Shenzhen,China.
T:86-0755-82521355