Musical Fidelity Headphone Amp

V90-HPA

http://www.musicalfidelity.com/v90-hpa
V90-HPA – Specifications
Performance
Power: 0.25wpc into 32Ohms
Ouput Impedance: 50Ohms (Suitable for 10-600Ohm headphones)
THD(+ noise): <0.005% typical (20Hz to 20kHz)
Signal to Noise Ratio: >109dB ‘A’-weighted
Frequency Response: +0, –1dB, 20Hz to 80 kHz
Inputs
1x RCA / Phono Line Level
1x USB Type ‘B’ Asynchronus up to 24bit / 96kHz sample rate
1.3mm Power Socket
Outputs
1x RCA / Phono Line Level (switch selected, fixed 0dB)
1x Stereo Headphone Jack – 6.35mm / 1/4″
1x Stereo Headphone Jack – 3.5mm / 1/8″
General
Dimensions – WxHxD (mm): 170 x 47 x 117 inc. terminals / switches
Weight (unpacked / packed): 600g / 1.1 kg
Supplied Accessories
1x 12v 500mA DC power supply
Instruction Manual

Cayin HA3 headphone amp

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Applicable for headphones with impedance from 30Ω to 600Ω.
Pure sound quality with tube output.
http://en.cayin.cn/products_info?itemid=90

Model
HA-3
Power Output
2100mW+2100mW(RMS,@32)
Frequency Respond
10Hz~100kHz (-1dB,AUX Input)
1600mW+1600mW(RMS,@64Ω)
10Hz~35kHz (-1dB,USB Input,24bit/192kHz)
500mW+500mW(RMS,@300Ω)
Digital input
USB Audio
USB Capability
USB 2.0,support upto 24bit/192kHz
THD
0.01% (1kHz)
S/N
105dB (A-weighted)
Input Impedance
100KΩ (AUX Input)
Input Sensitivity
1.8V (AUX Input)
Input Terminal
USB-B,RCA
Headphone Output
6.35mm×2
Power Consumption
<35W
Dimension
180mm×290mm×65mm(W×D×H)
Net Weight
3kg
Tube
6N16B×2

Sweet Vinyl update

Remember I told you about the Sweet Vinyl Sugar Cube products some months ago.

Well, here is an update (provided by Michael Fremer) on the products. There are two incredible products. One can record as well as remove clicks and pops without degradation to the music and the other does the same, but does not record. They are not inexpensive devices, but you get a ton for the money. If you have the scratch and really desire one of them, it is well worth pursuing in my opinion. I demoed their beta versions twice ans was impressed each time. Now they have added some stuff and really impress.

From Michael Fremer Analog Planet: http://www.analogplanet.com/content/sweetvinyl-sc-1-and-sc-2-and-running-ces-2017#mZwvHhPyxH5gr7LU.97