Little Dot Q – MINI DAC 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

C&C XO+ Portable Headphone AMP Amplifier

One New version XO+ is released! It comes with a nice leather wrap, and a nice box.This amp has a lot of features ?a low frequency boost, a gain switch, an impedance switch, a soundfield enhancer. Long usage time between recharge: up to 60 hours for low impedance headphones, up to 25 hours for high impedance ones. Come with one high end 3.5–3.5 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!