Blasphemy! I want an 1/3 octave EQ

Hearing loss here too. I have a Loki and it helps without spending much money. I didn’t know about a Super Loki coming out. Is there anything on the Schitt website about it?!

@fastninja12 - DSP -- Digital Signal Processing -- is just digital equalization. That’s all. It doesn’t imply room correction or anything else, nor anything automatic, though DSP is often used to accomplish room correction.

I have tried a fair number of equalizers, and the cleanest and best-sounding one I’ve used was the Weiss EQ1 Mk2. It is a mastering parametric EQ that operates in the digital domain, so you would need to a/d the signal (as suggested by @audio2design) insert the Weiss, and then d/a it back again. The Lynx Hilo is one unit that could be used to do that -- it was at the top of an A/D/A bypass comparison done by a pro audio magazine (I think, Sound on Sound).

You can think of "mastering" in gear descriptions as meaning "high quality, two channel."
There are various other mastering-grade equalizers available, mostly parametric, and some wholly analog. Check Gearslutz or VintageKing. The EQs sold as mass-market audio products, I don’t think are as good.

That’s not to say you absolutely won’t find a good quality 1/3-octave analog EQ. Maybe you will. Last time I looked, the ones I could find were a few hundred dollars and aimed a mid-fi systems. I even had a rather well-regarded one (now out of production), meant for professional use, an Audient ASP-231, which to me was inoffensive, but veiled the signal a little. (I am not taking a position on that eBay seller, just including the link for info.)

You’re looking for a unicorn. Good luck!
P.S. You might consider the dbx DriveRack Venu360. I believe Sanders uses it in one of their high-end electrostatic speaker systems, so maybe it sounds good.

P.P.S. Other good analog EQs include the Cello Palette line.

Haven’t used my Onkyo EQ-540 in yeaaaars.
maybe hook it up sometime, I miss the cool green lights, and features.

   Check out that huge DBX EQ, looks cool!

https://retrogearshop.com/products/cello-audio-palette-equalizer

@fastninja12 since you're using Roon, you can implement 1/3 octave EQ in Roon itself. For your other sources, something relatively inexpensive like the miniDSP SHD will let you perform 1/3 octave EQ for anything, if you place it before your pre-amp for example.

Both Roon and the miniDSP SHD will also let you do a lot more than 1/3 octave EQ as they support full PEQ. And they will do it in the digital domain.

I’m 72, just had my ears cleaned and tested. My ability to hear highs is a normal gradual downward slope. Even when young, great hearing: any speaker in any space, even with a lot of room treatment will not be ’flat’.

Way back when I bought a multi-band eq, (I cannot remember what it was). A good friend who is an AV consultant came over. We adjusted, tested, measured, moved the speakers bit by bit, marked up pre-printed graphs.

Oh Boy! After a while, I came to the conclusion: beware ’perfection’. It just wasn’t as involving as it had been. Out, gave it to a friend.

IOW, you may find a simple treble boost does it well enough. My speakers were designed with L Pads ’Brilliance’ and ’Presence’. I was considering removing them, temp bypassed, and found, they are needed, speakers were designed for them to be in the center of their range, and vary attenuation up/dn from there. It will be ’Brilliance to the Rescue’ as I continue to age.

That Rockville is surprisingly inexpensive, at $150. you could get one, try it, see how you like the results, then if it is working, keep researching for something you might prefer.

I am a big fan of remote balance, because, the better your system images, you find occasional tracks that benefit a lot from a small amount of balance adjustment. Using an equalizer for balance is great for most tracks, but ’fixed’, not flexible for this or that track.

Another idea, also only $150. is to try my favorite: Chase Remote Line Controller, RLC-1. I would never live without one. It gives you, from your listening position: remote volume, balance, treble, bass, and mute which can be handy.

You may find, the remote treble is enough, and, when sharing your music with others, put things back to ’normal’, then juice it up again for yourself.

https://www.ebay.com/itm/Chase-Remote-Line-Controller-RLC-1/254708363331?hash=item3b4dcd3043:g:huIAA...

Thanks Gregm....will explore your suggestions!

The only good (analog) equaliser I've experienced is from FM Acoustics, they call it a "harmonic lineariser", and empirically, it does not seem to degrade the original signal. However, it only offers a few corner frequencies and is very expensive.

For 1/3octave, may I suggest you consider a software-based solution (as hinted above)? Since you do have a digital signal anyway, you can tune it before it enters the DAC.
A somewhat fussy solution, but probably the most efficient and best sounding -- as these things go.Good luck

Fuzz tone & Articdeth...thanks for the links...will check out those products and vendors...

Thanks for your thoughtful guidance on DSP.  I am definitely old school audio.  I did consider DSP until I finished the acoustic treatment.  It was a dramatic change.  The subs now sound like instruments and vocals have lost the grainy edge.  My hope for an EQ is not room compensation, but ears compensation.  Since I have no tone controls nor a balance control, an equalizer was my choice for tweaking for my ears and tweaking for sweet spot.  I could have done a better job at stating my desires.. I thought I was specific in my requests and I am still interested in hearing others personal experiences with 1/3 octave graphic eq’s.

Well considering that no one ever stated that a poorly designed room with DSP was a good thing, you seem to be arguing with yourself. None of that changes that DSP makes for a better equalizer than analog for those 67 year old abused ears.

Uncle, I give up!  Final thoughts.  I disagree with the premise that a poorly designed room with DSP will out perform a room that is intended and designed for reproduction of music.  No DSP has the power to make a silk purse out of a pigs ear.  Start with the silk purse when possible.  And the initial request was for EQ for the deficiencies in my 67 year old abused ears.

Yep...Schitt Yggdrasil....a superlative  A/D.   And i choose to disagree about best methods for room correction.   IMO it is alway better to have a room that requires no  DSP for room correction.  But certainly deal with the physical domain first, the digital domain secondarily.  I suggest you read more and react less....

I suggest you think more, react less, and lose the attitude because from where I am sitting you are looking pretty silly right now.

1) The Schitt Yggdrasil is a DAC, not an A/D.

2) Acousti-Mat is an acoustical isolation product, mainly to keep sound out of in. It will prevent things from vibrating, but it is not going to control room nodes.   Again, all you have talked about is something that is an acoustic product, but does not treat the fundamental acoustics of the room, other than saying "first reflections are controlled".  What about bass-traps, front wall diffusers, back wall reflections, etc.  Based on what you have written so far, I have little confidence your acoustics are "spot-on".

3) Did you not start a thread looking for a 1/3rd octave EQ?   No analog circuit can do an eq like what can be done in the digital domain. That has nothing to do with room correction which you seem fixated on for some reason. DSP can also do balance super-fine, and can do all of it with no sonic signature if starting with a digital signal, even maintaining phase exactly as it started. Try that with an analog EQ.

p.s. when it does come to actual room correction, no room is perfect, and when you get into details, no room/speaker combination is perfect. Yes acoustics always comes first, hence why I stated right away that your acoustic were likely not spot on, and right now I am much more sure of that.  Given they aren't and your speakers in combination definitely are not, some final room correction could give a flat baseline from what to adjust the highs, which without taking measurements, may already be reduced for acoustic/speaker reasons.

Yep...Schitt Yggdrasil....a superlative  A/D.   And i choose to disagree about best methods for room correction.   IMO it is alway better to have a room that requires no  DSP for room correction.  But certainly deal with the physical domain first, the digital domain secondarily.  I suggest you read more and react less....

A2DLooks like you read it. I don't see an AD.  Not that it would help. I don't have a clue why requests are made here for Google stuff.

"Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer With Sub-Output!" https://www.rockvilleaudio.com/req231/?gclid=CjwKCAiAxp-ABhALEiwAXm6IyU2Lv9DZ4iEOIVg8WMkJu28_z_tUu9K...

"Goldenear refs, Klipsch 15 sub, M&K 12”V125, Roon Nucleus.  Oppo 103, Thorens TD165, Schiit Yggdrasil, Carver 275 amp, Prima Luna EVO preamp. "

- Care to point out the A/D in that equipment list?

The acoustics in my room are pretty spot on, acousti mats in the right places and first reflections tamed.

- Considering Acousti-Mat® is an in floor / in-wall sound isolation system, which having says very little about room acoustics, that leaves us with only "first reflections tamed" which is just part of an overall good acoustics treatment.   No mention of bass traps, diffusion, etc. but anyway.

And by the way, DSP will not do the work that  properly tuning the room physically can do...don’t do DSP first for best results.

You do realize that you can do a way better job at EQ (and balance) in the digital domain right?

Carry on.

So, A2D, Looks like you didn’t read my equipment list.  I do have a really good A/D.  And it looks like you didn’t read the acoustics work I’ve done already.  And by the way, DSP will not do the work that  properly tuning the room physically can do...don’t do DSP first for best results.  I think the expression is you cant make a silk purse out of a pigs ear..

Get a really good A/D and digitize your turntable and use DSP to correct.
Odds of your acoustics really being spot on are pretty low.

Sweetwater or Full Compass.
There is no 'audiophile' 1/3.
Dunno how fine the Super Loki will go or if it ever gets out.

Check professional shops, do’s, studio equipment.

   Rane
behringer
dbx makes a nice one.

 Lots out there,
enjoy the hunt.