hermitIt is a replacement and upgraded version of Amber 3, and Amber will be delisted in the future. There is no more detailed information released yet, so stay tuned!

   GoldenWave Amber III Fully balanced pure class A amp. The redesigned circuit structure, fully balanced amplifying circuit, using a 120W transformer for power supply, 4 independent amplifying units provide powerful driving force, carefully optimized tuning. 2 sets of XLR, 2 sets of RCA input; 1 set of XLR, 2 sets of RCA preamp output; 1 set of four-core balanced, 2*XLR balanced, 6.35mm headphone output.

Product introduction:

     Amber III is our newly developed main headphone amplifier. Compared with the old products, it has a leap in quality and improved. It inherits many advantages of GAX and forms its own characteristics.

     Amber III is a pure Class A headphone amplifier, optimized for current and heat dissipation, driving low-impedance headphones without annoying thermal noise, and has a very low output impedance.

     Amber Three provides two sets of XLR balanced, two sets of RCA single-ended signal inputs; one set of XLR balanced, two sets of RCA single-ended pre-amp outputs; one set of four-core balanced, 6.35 single-ended, 2*XLR balanced headphone outputs.

     Compared with previous products, Amber III has redesigned the circuit structure of the whole machine, fully balanced amplifier circuit structure, 4 identical independent amplifier units provide powerful driving force, carefully optimized tuning, and never loudly speak loudly. The whole machine is powered by a 120W transformer, which provides sufficient power reserve.

technical parameter:

Frequency response: 20-80kHz -0.5dB

Signal to noise ratio:>107dB

Harmonic distortion THD+N:<0.0004% @8000mW/32Ω 

Crosstalk between left and right channels: -100dB @ 1kHz

Output power (balanced): (THD=0.5%)

8000mW @32 ohm

3000mW @120 ohm

1900mW @250 ohm

1010mW @300 ohm

Volume: 340*63*253 mm = width * height * depth

Input power: AC 220V 50/60Hz

Warranty: non-human damage, 3 years warranty

ELEMITE fully balanced headphone amplifier

1. Specially designed input buffer circuit to achieve precise balanced amplification&Unbalanced to balanced conversion
2. Realize ultra-low real pure analog volume control by controlling the high-precision R-2R resistor network inside the Ladder DAC
3. Four completely independent Class A headphone amplifier drive circuits
4. The pre-amplification is provided by a complete fully balanced amplifier architecture
5. 80W transformer cooperates with multiple low-noise high-speed voltage stabilizing circuits to supply power
6. Perfect earphone protection circuit
7. The shell is exquisitely processed by CNC from a whole piece of aluminum
8. Provide a variety of outputs to connect headphones with different interfaces

Signal input: stereo balanced XLR*1, single-ended RCA*1
Headphone output: 4-core balanced*1, double three-core balanced*1, 6.35mm single-ended*2, 4.4 balanced*1, 3.5PRO balanced*1
Pre-level signal output: stereo balanced XLR*1, single-ended RCA*1
Frequency response: 20-30KHz, +/-0.5dB @1kHz
Signal-to-noise ratio: headphone amplifier output: -99dB @1KHz, A weighting
             Pre-stage output: -119dB @1KHz, A weighting
THD+N: Headphone amplifier output: 0.013% @1KHz, 300Ω
             Pre-level output: 0.0011% @1KHz
Output Power:（0.1% @1kHz, balanced）6W@32Ω, 4W@64Ω, 2.1W@150Ω, 1.2W@300Ω, 700mW@600Ω
Whole machine power consumption:<80W
Body size (width * height * depth): width 278 * depth 245 * height 58 mm, excluding raised parts
Net weight: 4.5kg
 

Sapphire III specifications:

Product introduction:
     Sapphire 3 uses 2 pieces of AKM''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s D/A decoder chip AK4497, which supports up to 384kHz/32bit PCM music signal or DSD 256 (up to DSD512 after updating the driver).
     Sapphire 3 uses XMOS''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s xCORE-200 series chip XU-208 as the USB interface. Compared with the previous generation XMOS U8, XU-208 uses a higher production process, and its performance is almost doubled, reaching a processing capacity of 1000MIPS. GOLDENWAVE designed a specially developed clock system for XU-208, providing it with extremely low noise and extremely high-precision clock signals to give full play to the performance of XU-208. The USB end supports up to 384kHz/32bit PCM music signal or DSD 256.
     Sapphire 3 adopts the digital-analog hybrid phase-locked loop clock system newly developed by GOLDENWAVE, which provides word clock input, and can also be connected with a higher-precision word clock.
     Sapphire 3 adopts a newly optimized 4-channel discrete component pure class A fully balanced preamplifier circuit, and 4 independent amplifying units that are identical. The current and gain distribution at all levels of the amplifier are optimized and the output voltage swing is close to the power supply voltage. It has low output impedance and high drive capability and dynamic range.
     Sapphire 3 has a pre-output mode, which outputs variable-level audio signals. Volume adjustment is no longer in the form of relay switching resistance, but a higher-level solution. Each channel is controlled by a piece of R2R ladder network, and its internal resistance network is used to achieve volume adjustment. This is a complete upgrade, with better linearity and user experience.

Technical index:
Digital input:
USB input support: DSD64, 128, 256; PCM 16-32bit, 32-384KHZ（Support PCM768K, DSD512 after firmware upgrade）
Coaxial, optical fiber, AES input: DoP64, 128; PCM 16-24Bit, 44.1-384KHZ
IIS input supports DSD64, 128, 256（Support DSD512 after firmware upgrade）
Analog output:
Frequency response: 20-30KHz, +/-0.5dB @1kHz
Signal to noise ratio: -122dB 
THD+N: 0.0009% @1kHz
Channel separation: -110dB @1kHz
Balanced output level: 4.6Vrms @0dBFS
Eight kinds of digital filters, DSD provides Wide BW, Narrow BW; PCM provides Short Delay Sharp, Short Delay Slow, Sharp, Slow, Low-dispersion Short Delay Filter, Super Slow
Power consumption:<50W 
Size: Width 278*Depth 245*Height 58 mm, excluding raised parts
Net weight: 4.5kg

Product standard configuration:
Sapphire 3 host: 1
Power cord: 1
USB cable: 1

Operation Manual:chrome-extension://ibllepbpahcoppkjjllbabhnigcbffpi/http://www.goldenwave.hk/download/Sapphire.III.manual.pdf

The manufacturer has the right to fine-tune the use of parts according to the actual situation, but will ensure that the circuit architecture and the overall final sound meet the design requirements. The final interpretation right belongs to GOLDENWAVE/Guangzhou Gordon Audio Technology Co., Ltd.