Item: LH Lab GEEKOUT 720 USB DAC/HEAD AMP + (Bonus) Bitstream BTS-300 USB Dac/Amp
Item Condition: Excellent
Reason for selling: NLR
Payment Method: Pickup - Cash, Paypal, COD Only
Excellent Portable USB DAC and Head Amp.
It has two 3.5mm jack outputs. One for sensitive IEM and the other one is for hard to drive full sized headphones or use the port as Line Out.
Here is my quick comparison with Audioquest Dragonfly Red (that I used to have).
In terms of OutPut: it is pretty much equal and drive upto 300 ohm headphones. I was using with HD650 and was happy with the pairing.
Re; Sonic quality, I found that this sounds better than Audioquest Dragionfly Red. It provides better resolution and touch of warmth from class A. This has better DAC chip inside (ESS9018K2M instead of ESS9016 from Dragonfly Red) and this runs pure Class A. Yes, it means that it gets hot. When you touch the aluminium chassis, you will feel quite hot but not burning hot. It can work as hand warmer during cold winter and designed to be plugged all the time and best sound comes when it is warmed up after 15 minutes or more.
Re: build quality, this one is made of aluminium for chassis, and when you hold it, it feels solid and premium when Dragonfly Red feels a bit cheap and feel plasticy.
Re: Decoding Capability, Audioquest Dragonfly Red only support upto 24bit 96kHz. GeekOut support upto DSD or 32 bit with 64 volume control.
Okay.. what is the downside?
1) Unlike Dragonfly Red that can be used with mobile phone, this one is designed to be used with laptop or desktop. iPad or Mobile Phone will not be strong enough to power this so if you are looking for USB Dac/Head amp to be powered from your mobile phone or iPad, this is not a good option.
2) This one is about 2 times bigger than Dragonfly Red. If you put two Dragonfly Red parrarel to each other, then it would be similar size to this GeekOut unit. Still very small but not as small as dragonfly Red.
Description & Specification from manufacturer.
GET READY TO RUMBLE
You just dropped a fat stack of cash on bumping cans and can’t wait to try them out. Sadly, your laptop’s integrated set-up doesn’t have enough power to accurately process digital signals and drive your high end headphones. A pint sized solution with a knockout punch, the Geek Out 720 USB DAC/Amp is a true contender.
Once you plug in and bypass your computer’s DAC, digital signals from your device are converted into clear, undistorted analogue signals, giving you the realistic sound quality you expect from high end headphones. Powered by triple layer buffering, 32 bit decoding engines, and 64 bit volume control, the Geek Out is capable of three dimensional spatialization, precisely recreating sounds without losing quality and amplifying the output volume for a more satisfactory listening experience.
While this USB DAC/Amp is only the size of a thumb drive, it produces massive sound. Designed for professional level cans with up to 300 Ohms of impedance, the Geek Out offers 720 mW of power. The dual 1/8” analog outputs let you connect multiple sets of headphones or speakers, so you can easily switch between devices or listen with a friend. A breeze to use, the Geek Out has onboard volume control and indicator lights to simplify your listening experience, offering you audiophile quality at minimal cost and maximum convenience.
T6061 aluminum enclosure
3 layer buffer
384 kHz / 32 bit and DSD 2 decoding engines
64 bit volume control
DAC chip: ESS9018K2M
Input: USB 2.0 (asynchronous)
Output: Dual 1/8 in (3.5 mm) analogue
Output impedance: 0.47 Ohm
Maximum drive output: 720 mW at 16 Ohms
Maximum output voltage: 3.4 Vrms
Amplifier type: class A
THD + N: 0.01%
Maximum native sample rate: 32 bit / 384 kHz
Maximum native bitstream: 6.144 MHza
[BONUS] Bitstream BTS-300 USB Dac/Amp. Cheap but good sounding USB DAC/HeadAmp. New owner can compare the two and feel how good GeekOut sounds. Or Use this BitStream Dac/Amp for Portable Use and GeekOut for Laptop/Desktop use.