Opus#1S has two CS43198 DACs released by Cirrus Logic in 2017. Each DAC manages the left and right channels separately to produce the best sound with the higher resolution and wider spacious feel.
24bit / 192kHz High Resolution Sound
Cirrus Logic CS43198 x 2EA Dual DAC
ARM Cortex-A9 1.4GHz, Quad-Core CPU DDR3 1GB
SNR 123dB, THD+N 0.0007%, Crosstalk ‰ÛÒ 140dB,åÊOutput 3.1Vmrs ( Unbalanced )
SNR 125dB, THD+N 0.0005%, Crosstalk ‰ÛÒ 142dB,åÊOutput 3.4Vmrs ( Balanced )
Low-clock-jitter sensitivity: 50ps(Typ)
4inch TFT Wide Touch Display (480 x 800), IPS Panel
WAV, FLAC, ALAC, AIFF, DSD, WMA,
MP3, OGG, APE(Normal, High, Fast)
Internal Memory 32GB
External Micro SD Card Memory 256GB x 2EA
Enhanced ABS Solid Body and Tempered Glass
Ultra Power Saving Mode
New Cirrus Logic CS43198 X 2 Pure Dual DAC
Optimized sound through sophisticated tuning by audio expert
Opus#1såÊis based on Android operation systems compatible with the ARM Cortex-A9, up to 1.4GHz with the Quad-Core CPU DDR3 1GB to express the best possible sound, providing bit to bit decoding and supporting wide variety of audio formats.
Opus#1s maximizes the advantages of the CS43198 DAC performance while retaining the sound of the audio-opus series praised by users, enhancing ultra low range and high range sound compared to the existing Opus#1 .
You can enjoy more dynamic sound.
Powerful output of 3.4Vrms
The powerful output of 3.4Vrms, which is not comparable to other DAPs of the same grade, enables you to enjoy powerful sound anytime and anywhere. Unbalance output also has enough 3.1Vrms to enjoy perfect sound with any earphone / headphone.
Comparison of audio spec with Opus#1
|DAC||CirrusåÊLogicåÊCS43198åÊx 2||Cirrus Logic CS4398 x 2|
|Bal. 115dB @1kHz
Unbal. 114dB @1kHz
|Bal. 135dB @1kHz
Unbal. 130dB @1kHz
Unbal . 0.0007% @1KHz
|Bal. 0.0007% @ 1kHz
Unbal. 0.0007% @ 1kHz
Ultra Power Saving Mode
Opus#1s has a saving power cunsumption function.
Display off: it will take 50~53 secondsåÊ+åÊSuspend mode: it will take another 1 minutes.åÊ
‰ÛÈ Opus#1s supports ‰Û÷Ultra Power Saving Mode‰۪ in suspend mode.åÊ
It means that opus#1s last almost 4weeks in Ultra Saving Mode, if it is fully charged.
OPUS#1 has been awesome. I was hesitant to purchase because of the price but it is worth every penny. I used a 400Gb card and have filled it with over 250Gb so far and it recognizes and plays all the albums so I'm guessing the 256Gb limit may not be true (I partitioned the card using ExFat). The sound on this has been so good that I'm getting rid of my FiiO X3 Gen2 which I also loved but frankly it doesn't compare. The only "complaint" I have is how long it takes the unit to boot and recognize all the music stored (over 5 minutes with what I have so far). My work around has been to let it go to sleep but not shut down. I have to charge it every couple of days with an average listening per day of 4 hours but I can live with that. I now plan to save and get some balanced IEMs (probably the FiiO FA7 since Opus doesn't make IEMs - at least none that I'm aware of). I can't recommend these enough.
I bought this player to transfer some of my CD collection to a compact unit. The sound is so good, I'm selling my CDs!
A decent choice, sound quality is perfect for my taste.
Great UI, smooth no lag.
I'm really thankful for making this my first DAP
I even purchased a second one
OPUS#1S Hi-Res Portable Digital Audio Player with FREE Leather Case