Instrument
Music Production
CD Player
DAC
Portable DAC
Headphones
In-Ear-Monitor
Bluetooth Speaker
Speaker
Blue-Ray Player
Projector
TV
Amplifier
Turntable
Audio PSU
SubWoofer
Audio Accessories
E-Bike
Swiss Watch
LifeStyle
Agricultural
Medical Device
Mobile Phone
Foldable Device
Wearable Device
Film Protectors
Replacement Parts
Macbook and Tablet
PC and Laptop
Peripheral
NAS HDD
Computer Component
3D Printer / SMT
Software
Drawing Pad
Monitor / E-ink
Router
Joystick
Charger
UPS
Otterbox
Bags
Accessories and Parts
Cases for Phone & Audio
USD
Home
/
LITTLEDOT I+ Tube Headphone Amplifier
LITTLEDOT I+ Tube Headphone Amplifier
Quantity
Email : Sales@greshamtech.co.nz
-
Detail
Little Dot I+ 6JI X2 Tube standard
The 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.
Little Dot I+ 6CQ6 X2 Tube Upgrade
The Little Dot I+ is specifically designed and optimized for driving low impedance headphones that require high current to perform to their full potential. Depending on how the switches are configured, three different families of vacuum tubes can be used (EF95, EF92, and 408A). 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!
Little Dot I+ WE408AX2 Tube Upgrade
The 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.
TECHNICAL SPECIFICATIONS:
Input:Gold-Plated Unbalanced Phono (RCA) Jacks
Output:1/4' Gold-Plated Stereo Headphone out
Tube:6JI/6CQ6
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 -
Customer ReviewsNo comments