Thanks to the courtesy of Leckerton Audio I have been loaned an UHA-3 USB DAC and Headphone Amplifier. If you want to read more on the UHA-3 which retails for $189 you can go to: http://www.leckertonaudio.com/index.html Here are some stock pictures from the Leckerton Audio website.
Now for the pictures I took including some “under the bonnet” shots. Please remember to click on the thumbnail to view the full size picture.
Notice that the rechargeable battery setup in the UHA-3 makes it very easy for all owners to replace. No soldering required!
The specifications on the UHA-3 are:
- Mini-USB connector for audio streaming on Windows or Mac (uses built-in USB audio drivers)
- Texas Instruments PCM2706 USB Audio Interface
- Cirrus Logic CS4344 DAC
- Lithium-ion rechargeable battery (18 hours typical runtime)
- Automatic battery recharge via USB
- 1/8 inch (3.5mm) analog audio input jack
- 1/8 inch (3.5mm) headphone jack
- High-gain (18dB) and low-gain (0dB) settings
- High-frequency switching regulator for low-noise +/-6V supply rails
- High-power output stage using parallel Analog Devices AD8512 op-amps
- Up to 100 mW into 32 Ohms, <1.0% THD
- Up to 115 mW into 100 Ohms, <1.0% THD
- Up to 40 mW into 300 Ohms, <1.0% THD
- 0.05% THD, 1 mW into 32 Ohms
- 0.02% THD, 1 mW into 100 Ohms
- 0.008% THD, 1 mW into 300 Ohms
- 13 dBu into high-impedance load (>1 kOhm), <0.01% THD
- -116 dBV A-weighted output noise floor in low-gain mode
- Frequency response: 20 Hz to 20 kHz, +/-1 dB
- Hammond extruded aluminum enclosure, 3.2" x 2.1" x 0.9" (approximately the size of a credit card)
- LED power and charge indicators
- includes 36" stereo 3.5mm cable and 36" mini-USB cable
I will try my best to get 150 hours (200 hours would be better) of burn in before posting my impressions/review, which I should have by Sunday, September 30th. I also plan to add this to the 27 amp review Vorlon1 and I did, hopefully we can get together Saturday to review/compare.
Now for the pictures I took including some “under the bonnet” shots. Please remember to click on the thumbnail to view the full size picture.
Notice that the rechargeable battery setup in the UHA-3 makes it very easy for all owners to replace. No soldering required!
The specifications on the UHA-3 are:
- Mini-USB connector for audio streaming on Windows or Mac (uses built-in USB audio drivers)
- Texas Instruments PCM2706 USB Audio Interface
- Cirrus Logic CS4344 DAC
- Lithium-ion rechargeable battery (18 hours typical runtime)
- Automatic battery recharge via USB
- 1/8 inch (3.5mm) analog audio input jack
- 1/8 inch (3.5mm) headphone jack
- High-gain (18dB) and low-gain (0dB) settings
- High-frequency switching regulator for low-noise +/-6V supply rails
- High-power output stage using parallel Analog Devices AD8512 op-amps
- Up to 100 mW into 32 Ohms, <1.0% THD
- Up to 115 mW into 100 Ohms, <1.0% THD
- Up to 40 mW into 300 Ohms, <1.0% THD
- 0.05% THD, 1 mW into 32 Ohms
- 0.02% THD, 1 mW into 100 Ohms
- 0.008% THD, 1 mW into 300 Ohms
- 13 dBu into high-impedance load (>1 kOhm), <0.01% THD
- -116 dBV A-weighted output noise floor in low-gain mode
- Frequency response: 20 Hz to 20 kHz, +/-1 dB
- Hammond extruded aluminum enclosure, 3.2" x 2.1" x 0.9" (approximately the size of a credit card)
- LED power and charge indicators
- includes 36" stereo 3.5mm cable and 36" mini-USB cable
I will try my best to get 150 hours (200 hours would be better) of burn in before posting my impressions/review, which I should have by Sunday, September 30th. I also plan to add this to the 27 amp review Vorlon1 and I did, hopefully we can get together Saturday to review/compare.
