Herron VTPH-2A Phono Preamp....anyone familiar?


Hi just reaching out to get any input/feedback  on the Herron VTPH-2A Phono Preamp.   While I'm happy with my existing Parasound JC3 Jr., someone recommended the Herron, so I got intrigued, as I've never run into, nor listened to, any Herron products.  
Thks, Jim

jhajeski
Uber, If you can, listen to a Manley Chinook.  I haven't heard the Herron, so can't say how it compares, but I'm very happy with mine.  
I urge you guys to read an elementary book on audio electronics. You might thereby learn to understand why a preamp (for one example) exhibits disappointing bass response compared to another. In this case, it might simply be a matter of the value of the output coupling capacitor. If so, the problem can be fixed by installing a different capacitor of higher value. Also one needs to pay attention to the input impedance of the device that the preamplifier is driving. These factors can make all the difference in the world, And they can be fixed without spending thousands of dollars on an entirely new device.
Lewm

In regards to input impedance I most certainly did pay attention which is how I ended up with the Gold Note to begin with as the Herron was NOT going to play nicely with my then present Lyngdorf 2170.

However with present Ayre EX8 with input impedance of 1m ohm/ 2m ohm unbalanced/balanced the Herron should be a sweet matchup.
As should the Chinook and likely countless others.

Not looked into the output coupling capacitor but that would mean changing parts internal which I do not have a huge issue with apart from it potentially hurts future resale value?
I urge you guys to read an elementary book on audio electronics. You might thereby learn to understand why a preamp (for one example) exhibits disappointing bass response compared to another. In this case, it might simply be a matter of the value of the output coupling capacitor. If so, the problem can be fixed by installing a different capacitor of higher value. Also one needs to pay attention to the input impedance of the device that the preamplifier is driving. These factors can make all the difference in the world, And they can be fixed without spending thousands of dollars on an entirely new device.

Interesting, maybe i will crack it up one day to see what's inside.
This italian phono stage only need more bass (imo). 
Definitely, the output coupling caps can choke out bass if they’re too small. And you probably need more capacitance than you’d think given the usual 1 / (2 * pi * R * C) roll-off frequency calculation. I think my older Rogue Ares could have benefited from larger output caps (they were only 0.47 uF), for example. But plenty of phono stages do use more than ample capacitance for hooking into the typical preamp (50K - 100K input impedance). I think in many cases, rolling different makes/qualities of capacitor will have a bigger sonic impact than just going to a bigger value of same make - output coupling caps are one of the most critical components for "voicing" a tube amp. Also, using a SUT vs. the JFET MC stage will significantly impact the perceived bass response, while having nothing to do with the output caps (SUTs too are a critical component with a lot of sonic variability across makes). I tend to like the thicker, more impactful sound rendered by a good SUT, but this is very cartridge-dependent.
@chakster

Is it better in low register? The only weak point of the Gold Note in my system is the bass. But the best bass i have with mosfet phono stage (no tubes).

In the same system, the Herron was better in the low register, along with being better all other aspects. I can delineate the instruments but it’s not artificial, it’s more like being in the room with the artist.

The infinite loading surprised me.

For the Herron, I had 220 and 470ohm plugs made for my cartridge as this is what the Gold Note offered and sounded good when using. I initially tried the plugs with the Herron and it sounded excellent. When I removed the plugs and went infinite load, it elevated the subtleties and clarity.

I still think you can’t top the Gold Note up to maybe $2000 price range. But for what Keith offers the VTPH-2A for and his service, the price difference was more than well worth it for me.

Here's my system, just FYI:

Rega Planar 8
Ortofon Cadenza
Prima Luna Dialogue Premium HP Integrated
ProAc D30RS (ribbon)
Herron VTPH-2A
The infinite loading surprised me.

For the Herron, I had 220 and 470ohm plugs made for my cartridge as this is what the Gold Note offered and sounded good when using. I initially tried the plugs with the Herron and it sounded excellent. When I removed the plugs and went infinite load, it elevated the subtleties and clarity.

47k Ohm loading on Gold Note for MC cartridges is almost "infinity", did you try that ? 

I have another phono stage with plug-in load resisteors (the JLTi) and i like 47k Ohm for some MC cartridges. My JLTi was customized by manufacturer, i have 500k Ohm resistor inside, so i can plug 47k Ohm resistor (rca plugs) from the outside just like in Herron.  

I have no problem with clarity using Gold Note, it is crystal clear phono stage, but i feel the obvious lack of deep bass in Gold Note compared to my upgraded WLM Phono stage which is a kind of body and bass compared to all phono stages i have tried. I tried the Gold Note with headamp and with sut, but the low register is still not as good as my WLM Phonata to my surprise.   

Maybe Lew is right and i have to look at the  output coupling capacitor inside the Gold Note. 
Why is this discussion of 9-18-2018 showing up now?

It wouldn't take much effort to read the post that re-started the discussion and you'd have your answer. 
There are MANY threads from years gone by that are still very applicable today and get resurrected for good reason.

I was interested in the Herron, rather than start a new thread, I did a search, saw this one and brought it back into the fray.

It is not uncommon.
Chakster.

Be interesting to see what you find on that output coupling cap if you go that route.

Still on the fence on the Herron.
@uberwaltz again I'll ask why not just get the matching power supply for about 850? It will give you more detail, depth and bass definition. This only if you still find the PH10 still to your liking.
Reports from two members who have the matching ps to the ph10 is that it really has not helped out over much.
Not in the bass or details department.
At least not $850 worth by all accounts.

And going back a couple of years I was set on a tube phono, just was not really going to match up well with then present amp.
Now I am pretty much wide open on choice, and still have a hankering to try out a tube phono.
Do not mistake me, the ph10 is still an excellent phono and I love its flexibility.

However I have moved away from exotic lomc carts tbh and likely just going to,play with various mm and vintage mm carts so do not truly need the gain the ph10 has available.

And there is that tube itch which I feel compelled to scratch......
The VTPH-2A uses 12at7 & 12ax7 tubes, can any body please tell me what tube brand Keith supplied/preferred for the VTPH-2A? Thx
I'm very interested in the Herron. I've also been looking at the ModWright 9.0. Which way is best to go? I don't plan on buying another phono preamp in my lifetime, I want to make the right choice.
The Herron & Modwright are both great.  But I would choose the Herron.  One reason IMHO is that the Herron has a FET first stage for MC followed by a tube second stage for the MC (the tubes also act as the only stage for MM).  So, you can bypass the FETs when using an MC cart by using a separate SUT into the Herron's tube only MM stage.  However, the Modwright has a tube/JFET hybrid first stage for MC followed by constant current source loading for the second stage.  There does not seem to be a way to bypass the JFETs in the Modwright.  YMMV.
Can anyone describe what I might be able to expect by adding the Herron VTPH-2A to my system? I'm currently running a Denon DP-62L TT with the straight black tonearm wand, Grace F-9 cart with SoundSmith Nude Ruby OCL stylus, Yamaha A-S3000 integrated amp and Magico A3 speakers. I also set-up a mono TT: Pioneer PL-41A with a Denon DL-102 high output MC mono cart. I've never heard tubes before. I think my system sounds great but I'm wondering if adding a tube phono preamp takes the sonics to another level? I'd love to demo one but that isn't an option Herron offers. Thanks!
If you think your system sounds great, why not just stick with it? Keep in mind that if you go with tubes, you may end up going down the "rabbit hole", spending countless hours and dollars looking to get the lowest noise and highest performing tubes. This is coming from a tube guy.

If you are still "tube curious", see if you can find a decent phono stage" that comes with a trial period. Modwright, Music Direct and Tavish Audio Design all offer trial periods (to get a taste of tubes)...as does PS Audio, but it’s not a tube design. : ) Good luck!

If you think your system sounds great, why not just stick with it? Keep in mind that if you go with tubes, you may end up going down the "rabbit hole", spending countless hours and dollars looking to get the lowest noise and highest performing tubes. This is coming from a tube guy.


Exactly, even in the line level pre-amp or power amp.

In a phono stage can be more problematic, especially for LOMC cartridges.

If you want a very special phono stage for low impedance LOMC then check Current Mode (Current Injection) type of phono stages like 47 Labs Phono Cube or others. 
If you think your system sounds great, why not just stick with it? Keep in mind that if you go with tubes, you may end up going down the "rabbit hole", spending countless hours and dollars looking to get the lowest noise and highest performing tubes. This is coming from a tube guy.

I thought my system sounded great with the previous components. Then I replaced components as time went by and my system sounded better. I'm getting the same amount of enjoyment out of my stereo as I did before but it does sound better. I doubt I could get more enjoyment out of my system but if a tube phono preamp improved the sonics then I'd be interested to make that happen. I've heard so many times that when playing vinyl, tubes take the sonics to another level.  I am curious to hear the difference they make.

The two phono preamps I am interested in are the Herron VTPH-2 and the ModWright 9.0. After going over the build of each of them, I think I'd prefer the Herron. I know ModWright offers a 14 day trial but if I liked the tube sound I wouldn't feel right about returning the ModWright and buying the Herron. Unfortunately Herron doesn't offer a trial period. So for now I'm waiting to make a decision.
Exactly, even in the line level pre-amp or power amp.

In a phono stage can be more problematic, especially for LOMC cartridges.

If you want a very special phono stage for low impedance LOMC then check Current Mode (Current Injection) type of phono stages like 47 Labs Phono Cube or others.

My amplifier is the Yamaha A-S3000 integrated. I'm not going to add a separate preamp. I don't need additional power so that rules out a power amp. My mono TT uses a high output MC mono cartridge. My stereo TT uses a MM cart. If I ever upgrade to a LOMC and a problem develops, I still have the internal discrete phono stage of the Yamaha. However, adding a separate phono preamp solves another problem. There is only one set of phono inputs on the back of the amp so I have to disconnect and reconnect the other TT every time I go from playing a mono record to a stereo record.
My amplifier is the Yamaha A-S3000 integrated. I'm not going to add a separate preamp. I don't need additional power so that rules out a power amp. My mono TT uses a high output MC mono cartridge. My stereo TT uses a MM cart. If I ever upgrade to a LOMC and a problem develops, I still have the internal discrete phono stage of the Yamaha. However, adding a separate phono preamp solves another problem. There is only one set of phono inputs on the back of the amp so I have to disconnect and reconnect the other TT every time I go from playing a mono record to a stereo record.

How does it all related to the OP question ? 

Tube phono stage with tube amp will generate more noise than solid state type. I also have Yamamoto, but A-08s. 

In your situation the Gold Note PH-10 is a phono stage with 2 independent MM/MC input, you can connect two turntables and each one can be MM or MC. Yamaha is junk @vuch  

@chakster dude, have you heard the Yamaha? Have you read any reviews that compare it to other high end stuff that it blows away? Can you afford it? I'm guessing the answer is no. 
Oops, I made a mistake and misread the Yamaha and Yamamoto from my phone for some reason. So you don’t even own Yamamoto :)

Now i think it’s you who must read what is Yamamoto A-08s and read the reviews and check the price.

I did my search about Yamaha, a company who made cheap receivers for home cinema most of the time. That new product look like an old receivers same style), hope it’s better. I don’t care about reviews, never seen a bad review for anything made today, they are always raving about new product whatever it is.

Anyway, we’re off topic here.

Tube Phono Stage = More noise
Tube amp + tube phono stage = even more noise. 
I'm a little late to this but wonder if any of you VTPH 2A owners can answer a question for me.  Can I plug cartridges into both MM and MC inputs of my VTPH 2A at the same time and simply switch between them with the MM/MC switch on the back?  I suspect @bpoletti will know the answer.

As far as the OP's question goes,  I own a CAT SL-1 Renaissance and before that owned an original SL-1 for 25 years.  During those years I had opportunity to compare with many other other phono stages and consider it to be one of the very best available..  That said the VTPH 2A which I use for additional turntables very closely approaches the CAT.
@vpi 

I've never tried to connect a low output cart and a high output cart to my VTPH-2A at the same time. I don't know if the manufacturer recommends this or not. 

That's a good question for Keith Herron.   

@bpoletti 
Thanks for quick response.  I have emailed Keith and will post when I hear what he has to say.
I have a backup table with an MM cart I use to check vinyl purchases before I’ll play them on my main table. I have it hooked to the MM inputs on the Herron, and my main table is hooked to the MC inputs and I switch back and forth with no issues at all.
Far be it from me to knock the Herron phono stage.  My earlier remarks ca 2019 were made in jest at the outset of this longlived thread.  I am sure the Herron is superb. But two guys who own the Herron and also own or have owned two other very fine phono stages that cost a great deal more than the Herron, the VAC Renaissance SE and a special edition of the CAT SL1, have remarked that they at least slightly prefer the higher cost models to the Herron.  This is no black mark on the Herron, because those two phono stages are likely to be very exceptional.  But that testimony gives me some idea how to think about the Herron, without having ever owned one. 

I would not dismiss Yamaha electronics out of hand.  There was a time when they marketed very advanced solid state gear using a novel transistor, the name of which escapes me right now.  I think that was the Yamaha B1 and B2, for the amp and preamp, respectively.  Also Yamaha produced the GT2000 turntable along with the L and X versions of same.  Like the company that makes Technics products, Yamaha is an industrial giant capable of doing whatever they want.  That said, I would like to know more about the A-S3000 integrated.  Is it a current product or vintage, for one thing?  On the face of it, or until I know more about the A-S3000, that would seem to be the weak link in the OP's system, since the other components are high quality.
@lewm, mosfet?

I owned the AS2100 (model just next down from the 3000), excellent integrated, very good sounding for the money, nice dynamics and power, has an MM stage, which is good but nothing special. It was a current unit in 2017 Lew, now they have 3100 and 2200 IIRC, same concept but new power supply and new circuit.

I was using the 2100 with the Budgie from Parks Audio and it was better IMO than the integrated MM on the Yamaha

Thanks @vinylzone, 
In the meantime I spoke with Keith and he confirmed your experience.  No problem on plugging into both MM and MC at the sane time.