Ferrum Audio thread, Hypsos / Oor / Erco

Oh i wish i could spend that amount of money on a pre, i forgot to mention i had found a Quicksilver pre for $400 shipped! Hahaha, the Wa22 is in another investment bracket :slight_smile:

What do you guys know about that YAQIN buffer thingy?

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I would absolutely stay away. I had something similar when i first started. You will be spending 175 or so just to lose refinement in your chain. It will add warmth but will be very loosey goosey

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how about a freya? that’ll do the trick probably

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Yep the Freya is still on the cards for me, i just thought that maybe the Quicksilver pre would be an even better option for what i am seeking. I have just started going down this brand new rabbit hole of adding warmth to a solid state amp :slight_smile:

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How good is the Ferrum Erco as a dac. I am thinking of using it with my LTA z10e

Why the Erco? I’d recommend @dB_Cooper 's Mojo V2 for a bang for buck $1K range DAC that can synergize well with the LTA

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I got a good deal on one so I decided to go for it. I really enjoyed the OOR + Hypsos so I thought the erco would also be good, but I haven’t heard much about it

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Let us know some impressions once you have time

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Wow, it’s already been a month haha. Just got back from vacation, I’ll spend some time next week listening to headphones again. Thanks for the reminder!

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Some quick notes after my first listen. For some reason, the Erco sounded better on 2 ch 24-bit integer while the CMA fifteen sounded better on 2ch 16-bit integer. I have no idea what the technical reasoning behind that is but I thought I’d note it.

They sound pretty different, Erco sounds softer and has more body, CMA fifteen sounds quicker. Erco seems to have a bit more bass and roll off in the upper treble, CMA has much more of a treble presence. Stage seems deeper on the CMA fifteen but also less encapsulating if that makes sense. They both pack plenty of power. I find myself leaning towards to Erco for now, but I still need much more listening before making any solid opinions.

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What cans are you using mainly?

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Right now I’m just using my friend’s 6xx lol. I lent all of my headphones or sent them in for repair while I was away on vacation.

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Hey guys, quick question.

I am using my Quicksilver as my main amp these days and i have the HYPSOS + OOR just sitting there next to it.

Ive heard the Gumby’s SE outputs are subpar, so i just had this idea of using the OOR as a pre-amp for the Quicksilver, but i am unsure about the specs for doing that, is it safe? Is it even a good idea?

The OOR’s manual states: Output Impedance Single Ended: 22 Ω on pre-amp, and the Quicksilver states: Input impedance 100 kohms. Would that output be a good match for the Quicksilver’s input?

It’s safe to do. If it will sound better than direct is somethinf you will likely just have to try

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Cool thanks i will give it a try.

I know the Gumby is supposed to have poor SE output fora a while now, don’t know how i never thought of using the OOR as a pre for the Quicksilver and eliminate the Gubmy’s SE entirely!

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Another option is to get a balanced to SE convertor.

Pine Tree Audio sells a SE to balanced convertor at a pretty decent price, and if you email them, you can special order it do the conversion the other way around.

I almost bought one a couple of years ago because I had an Yggy at the time and was curious to test whether I could hear a difference between the balanced and SE outputs, but I ended up changing DACS to the single ended Mojo Mystique and therefore didn’t need it.

From memory, I don’t think they were going to charge more than the original price of $275 because they make the convertors from scratch anyway, so it was just a matter of using the correct XLR connectors and a small difference in the wiring. There was going to be a small upcharge to add a switchable attenuator if the 4V of the balanced outputs didn’t give me enough range on my amp’s volume control.

I know what I described can also be done by your Oor, but if you ever decide to sell the Oor, this is a much cheaper alternative.

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That is a good option indeed, but i honestly don’t see myself selling the OOR. The reason why it is just sitting there is because i am on a 1226 + Quicksilver phase, but those come and go and then i may be back to the HE6 + OOR phase :slight_smile:

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Out of curiosity, how does the OOR work when using its RCA preamp outputs?

Does it actually amplifies the sound from the DAC? And if it does, which seems to be the case, won’t that saturate the sound being inputted into the next amp?

I actually like what i hear so far, and i noticed that if i switch the OOR to high gain the volume goes up by a lot, so i would like to understand what is going on under the hood.

I am thinking two things:

1 - A stronger signal into the actual amp would give it more to work with and that is good;
2 - A too strong signal into the amp would cause distortion, so its best to not use high gain;

EDIT: I noticed that when i set the OOR on low gain and raise the Quicksilver’s volume to get to the same level as with mid gain, the sound is much leaner with not enough bass. Between mid gain and high gain though, it is a toss up.

EDIT2: Ok now i can clearly hear a difference in sound between mid gain and high gain, is it dangerous at all to use the OOR on high gain into the Quicksilver? A friend of mine told me i can fry the Quicksilver’s pre? :grimacing:

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Odd question but does the Hypsos have an option to orient the screen vertically?

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No it doesn’t.

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