Firstly I would like to thank Matrix Audio for sending me this sample to review, in exchange for my honest opinion. I always try to write honest reviews, this unit received over 50hrs of burn-in before reviewing, no differences were noted.   Gear Used: Dell XPS 15 / Audio Opus #1 > Matrix Quattro II DAC > Matrix HPA-2C Dell XPS 15 > Matrix HPA-2C Headphones: Fischer Audio FA-003ti W / Fostex T50rp Mk3 / Fostex TH-500rp (IEM’s more on that later)     Tech Specs: A comprehensive list can be found on the Matrix...

Firstly I would like to the The Bit for offering me a discount on the Opus #1 in exchange for a review, I did not receive this sample for free. I always try to write honest reviews. This DAP has had well over 50hrs of use, no differences were noted.   Gear Used: Opus #1 > Normal output > InEarz IE-P350 / AAW W300 / T5p 2nd Generation and more Opus #1 > Balanced out > InEarz IE-P350 / AAW W300 Opus #1 > Optical out > Matrix Quattro II > Feliks Audio Espressivo > Fostex TH-500rp     Tech Specs: Comprehensive list can be found on the product...

Firstly I would like to thank iFi Audio for sending me this sample to review, I always try to write honest reviews. This unit received over 30hrs of burn-in, no differences were noted.   Gear Used: Dell XPS 15 > iDAC2 > GMP 8.35D / GMP 400 / Inearz IE-P350 Dell XPS 15 > iPurifier2 > iDAC2 > GMP 8.35D / GMP 400 / Inearz IE-P350 Dell XPS 15 > iPurifier2 > iDAC2 > Feliks Audio Espressivo > GMP 400 / DT880 600ohm       Tech Specs: iFi list a very comprehensive list of specs on the product page...

Firstly I would like to thank iFi Audio for lending me this sample to review, I try to write honest reviews. This unit has had over 50hrs of burn-in, no differences were noted.   Gear used: Dell XPS15 > Matrix Quattro II > iFi iCan SE > German Maestro GMP 400 / Fostex TH-500Rp     Tech Specs: Specifications:   Gain: 0dB, 12dB and 24dB user-selectable Signal to Noise Ratio: >123dB(A) Total Harmonic Distortion(THD): <0.003%(400mV/150R) Frequency Response: 0.5Hz to 500KHz(-3dB) Output Impedance: <1...

These were loaned to me by Polar Audio for review, I always try to write honest reviews. These have had over 50hrs of burn-in before I received them so I do not know if they have changed in that time.   Gear Used: The Bit Opus #1 > T5p 2nd Generation The Bit Opus #1 > Optical Out > Matrix Quattro II > T5p 2nd Generation     Tech Specs: Transducer type: dynamic   Operating principle: closed Nominal frequency response: 5 - 50,000 Hz  Nominal impedance: 32 Ω Nominal SPL: 102 dB   Sound coupling to the ear: circumaural      Weight...

Firstly I would like to thank Matrix for sending me this review sample, it was arranged through their distributor. I always try to write honest reviews, these are my subjective findings. This DAC has been burnt in, to be honest with solid state devices I do not tend to hear big variations after burn-in, this was no different.   Gear Used: Dell XPS 15 > USB > Matrix Quattro II > (German Maestro GMP400 / Fischer Audio FA-003ti Wood Cup) Marantz CD-52 SE > Coaxial > Matrix Quattro II > Marantz PM-44 MKII SE > Mission 702e     Tech Specs...