Judd Sandage
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- Joined
- May 12, 2026
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It also looks like the English site is up and running now. https://www.jadeaudio.com/J1?product_id=91&_l=en
We'll have to hope that their new Q8 preamp scratches all the itches... due out in August.Fosi has their own sub so lately I'm seeing them put in high passes and sub outs. Which is GREAT but I just need a dac/pre amp. It's definitely nice to see fiio put a sub out and I have hopes for the future.
community.fosiaudio.com
Nice looking box. Spiritual successor to my old Realistic mini-amp?It also looks like the English site is up and running now. https://www.jadeaudio.com/J1?product_id=91&_l=en
Yeah I've also been keeping up with their community forum about this and I saw their display on YouTube from their axpona. Looks pretty good and promising just a tad large of a unitWe'll have to hope that their new Q8 preamp scratches all the itches... due out in August.
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Preamp - Q8 Desktop DAC Preamp Development Log
Hi Fosiphiles, We’re thrilled to officially kick off this thread with exciting news: Q8, one of our most anticipated upcoming products, is finally in development! Born out of last year’s anniversary co-creation campaign with our community, Q8 is a product that truly embodies your ideas...community.fosiaudio.com
Thanks for the info. I'm glad you can change the input on the unit, as for some reason I thought you could only do so with the app. It's a nice looking unit!Vintage vibes, Small Size and some practically useful features
This is one good looking amplifier.
Thank you @Guddu, what is your assessment of these Measures....Some quick measurements
RCA Pre-Out, Max Volume = 1.52 Volts
Fiio Jade Audio Level 1 - USB Input, RCA Pre-Out
View attachment 534289
Noise/Distortion - USB Input, RCA Pre-Out, LEFT
View attachment 534290
Noise/Distortion - USB Input, RCA Pre-Out, RIGHT
View attachment 534291
Jitter J-Test
View attachment 534294
Fiio Jade Audio Level 1 - USB Input, Subwoofer Out
View attachment 534292
View attachment 534293
It would be in the yellow area on Amir's amp SINAD charts. It would be somewhat below the average of all amps ever tested but not terrible (more than half of the amps test better). This amp is not exceptional.Thank you @Guddu, what is your assessment of these Measures....
Other than the feature set and cosmetics -- which many will find "exceptional" for the $$$ -- I agree that it looks to be fairly typical of the current TPA3255-based crop.This amp is not exceptional.
Thank you @Guddu, what is your assessment of these Measures....
It would be in the yellow area on Amir's amp SINAD charts. It would be somewhat below the average of all amps ever tested but not terrible (more than half of the amps test better). This amp is not exceptional.
Thank you, @TurtlePaul, Yes but would have been nice to read @Guddu's assessment :=)It would be in the yellow area on Amir's amp SINAD charts. It would be somewhat below the average of all amps ever tested but not terrible (more than half of the amps test better). This amp is not exceptional.
Thank you, @Guddu, you did not mention/indicate, so Amp assumed :=)Those quick measurements are for it’s DAC only, not the power amplifier.
Pre-out are most likely to be used for subwoofer which should be okay to me.
From Fiio’s website:
View attachment 534338
This also should get SINAD around 66dB.
This might be their attempt to PFFB but not 100% sure.It also suggests, no PFFB is utilised, doesn't it,
Pre-Out frequency sweep looks pretty fine to me, less than -0.5dB between 10-15K and -1dB at 20K should not be anything to be worried about.which further implys Load Dependency/Variance?
Low gain (c.a. 19dB) is often an indication of PFFB in these amps. Have you measured it?This might be their attempt to PFFB but not 100% sure.
View attachment 534340
I did not but will try.Low gain (c.a. 19dB) is often an indication of PFFB in these amps. Have you measured it?
Low gain (c.a. 19dB) is often an indication of PFFB in these amps. Have you measured it?
300 watts is a marketing number, so there are 10% distortions. It could have been written as 180 watts and 0.7%, but how magical are numbers?)Advertised distortion is suspiciously high for the class.
The Hi pass filter is optional, it is enough to adjust the crossover of your subwoofer according to the natural roll-off of your stereo pair's frequency responseAs usual an average company misses the nail with a simple fucking bass management feature. Why even include sub outs if you can't high pass. Companies never just learn.