- Stock: 20
- Model: 1005003722345574
- Weight: 4.50kg
- Dimensions: 29.00cm x 33.00cm x 14.00cm
- SKU: 1005003722345574
Available Options
Note the version when placing an order:
Standard version.
Upgraded version: (USB clock upgrade to Crystek crystal oscillator, and USB with isolator)
True full discrete NOS R-2R design
Fully discrete decoding, amp and pre amplifier all-in-one machine
The output power is as high as 3800mW @ 25 ohms, which is enough to drive most headphone current transmission designs.
2 sets of fully discrete individual DSD hardware decoders..
4 sets of fully discrete R-2R DA modules form a two-channel balanced push-pull decoder.
32bit / 384K /DSD512 asynchronous transmission Amanero USB interface
The digital circuit of the whole machine is composed of 3 CPLD programmable devices, which can upgrade the firmware to improve the sound quality.
R2R-11 mk2 design features:
1: 4 groups of R-2R decoding circuits and 2 groups of DSD hardware decoding circuits.
2:An isolator can be selected for USB input.
3:High-quality R-piece power supply.
4: Nine sets of stabilized power supplies are supplied to different signal circuits. The R-2R circuit and analog output amplifier use 3 sets of pure Class A stabilized power supplies for separate power supply. Three sets of ultra-high-speed linear stabilized ICs and two sets of stand-alone servo power supplies power the entire digital circuit, while the control circuit is powered by another set of stabilized power supplies to prevent interference generated by the control circuit from affecting the digital and analog circuits.
5:The product has two levels of gain. The low gain of 12DB is suitable for driving earphones with sensitivity above 95DB, and the high gain of 22DB, with strong output power, is enough to drive earphones of around 85DB. If you need a higher gain, you can open the machine and install two short-circuit tabs to increase the 6DB gain of the guest meal, so that the total gain can reach 28DB, and even low-sensitivity headphones can drive well.
6:The volume control board performs I/V conversion for the relay switching resistance to control the volume. A 0.1% resistor is used in parallel to achieve 0.05% accuracy.
7: Provides a design that can install two short-circuit tabs to make the sound thicker and warmer.
8: Fully discrete transistor amplifier design, using CAST technology.
9: In such a cheap product, the Swiss Neutrik headphone socket is also used.
Product parameters:
S/N Ratio:100db
THD+noise: <0.04%
Frequency Breadth: 20Hz-90KHz (-3DB)
Output Level:
Headphone output: 10V RMS
Variable output: 5V Max
Fixed output: 2.5V RMS (High gain)
Fixed output: 1V RMS (Low gain)
Output power(headphone.):
3800mW/25 ohm
2400mW/40 ohm
950mW/100 ohm
330mW/300 ohm
165mW/600 ohm
Output impedance:
2 ohm / Headphone output
2 ohm / DAC output
Input Sensitivity:
0.5 Vp-p(75 Ohms, Coaxial)
19 dBm (Optical)
Some TVs and gaming consoles may not have a sufficient levels to drive the SPDIF inputs
Support Operate Systems (USB): Windows, Mac, IOS, Linux
Support Sampling:
USB PCM model: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz
USB DSD native mode: DSD64-512
Coaxial model: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 192kHz
Optical model: 44.1kHz, 48kHz, 88.2kHz, 96kHz
Power Requirement: 220-240V OR 100-120V AC 50/60 Hz
Power Consumption: 15W
Package Weight: 4.5KG
Product Weight: 3.5KG
Dimensions: W240 X L280 X H85(MM, Fully aluminium, with feet, without protrusion)
THD+N <0.04% (digital input, 2V output)
Frequency response -3DB at 90K (digital input, output 2V)