Fryette PS-100 Review

AxemanVR

I appreciate, therefore I am...
Silver Member
Feb 8, 2014
6,125
Minnesota USA
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I'd like to start this review off by pointing out how the Fryette PS-100 is often referred to as an "attenuator", but that label grossly minimizes what this device really does in my opinion.

Sure, it can attenuate - in the sense that you can turn it down - but functionally it's still a vacuum tube based signal amplifier, just one that reacts to an amp's speaker load (i.e. a "Reactance Amplifier") instead of something like a low level preamp signal.

It's basically designed to take a guitar amplifier's speaker output signal and further re-amplify it before driving a physical speaker (or not: *There are also options for silent "Direct-In" mixer and recording as well).

Its real value is providing practically unlimited control over your rig's output volume, either high or low, while still essentially retaining the original amp's character.

PS-100 a small.jpg

One of the main advantages of the Fryette PS-100 is that it allows me to scale my 12 watt 2019 Fender '57 Custom Deluxe's perceived output volume so I can use it in practically any venue I may find myself in.

Probably the biggest problem with any Fender 5E3 Deluxe style amp is that you can really only dial it in for one sweet-spot (at least the the way I use it - heavy overdrive when the guitar volume is cranked but cleans up nicely when the volume is backed off).

So, being a single channel amp, I'm limited to the setting that works best no matter where I'm playing. In smaller clubs it may be too loud, while in larger clubs it may get drowned out. There are also other limitations in the 5E3 design, such as a single tone control and no effects loop.

Sure, the Deluxe can be modded to add such features, but I'm not willing to run the risk of messing with the uniquely pure gain structure that made me fall in love with it in the first place.

With the PS-100, not only can I adjust the overall volume of my little Fender Deluxe to suit various performance situations, but I can essentially channel switch and add effects at the end of the signal chain rather than at the beginning - not to mention providing the extra control for fine tuning the tone if needed.

So any simple amp can suddenly become vastly more versatile using the PS-100.

In my case I can crank my beloved Deluxe up to its sweet-spot while setting the overall output where I need it and even have the ability to switch between the two PS-100 channels for rhythm or lead playing. In that sense the Deluxe still works exactly the same way (riding the guitar's volume to dial in either clean or dirt), except now I can have the rhythm channel volume set a little higher, for example, since I usually lower the guitar volume to clean things up. Plus the effects loop can be utilized for effects that work best there, like reverb or delay.

I actually run an EQ pedal through my PS-100 effects loop, to add far more tonal adjustability to the far too limited single tone control that my Deluxe has. Previously I had to run the EQ in front of the amp, which only changes to character of the guitar, not the amp itself.

~~~~

Okay, so far I've been only pointing out the Fryette PS-100's advantages, but unfortunately there are a few notable downsides worth mentioning:


1) The roughly $1000+ price tag (as of Feb 2022).

Obviously not everyone needs something like this, so justifying getting one can be difficult - especially since there are definitely alternatives (such as channel switching amps that essentially have the same functions). Even so, I included some further thoughts about why someone might still want to consider getting a PS-100, even in those situations (to be addressed below).


2) It's Heavy.

At 16 lbs (7+kgs) you'll certainly notice its hefty mass when loading, unloading and setting up this behemoth. It's also difficult to handle since there's nothing to grab onto and I'm always afraid I'm going to drop it sooner or later. That's not only because of the weight, but because of the size, which leads to...


3) It's large and bulky.

Not only do I not look forward to lugging this thing around, but finding a place to put it also takes some forethought. This is partly due to its rather large footprint, but it also needs to be placed in a way where air can sufficiently circulate for cooling purposes, which leads to...


4) It runs hot!

You aren't getting 100 watts out of the two 6550 power tubes without a lot of thermal dissipation. While the PS-100 comes with a built in cooling fan, it still needs to have space for airflow to be effective. The company claims that it's designed to withstand the heat, but, being the paranoid person I am when it comes to my gear, I'd definitely consider bringing an extra fan on super hot days.


5) This may just be an isolated incident, but the first couple of times I turned on my new PS-100 I noticed a weird crackling noise while warming up, but that has since stopped, so hopefully it was just the new tubes burning in or something.


6) This is not a fault of the Fryette PS-100 in any way, but, one unavoidable side-effect of amplifying any signal is that you will also be amplifying any extraneous noise as well. So if your amp is noisy, then expect that noise to get louder as you crank the PS-100 up. Perhaps a noise gate might be useful (through the effects loop) if it becomes a major issue at concert level volumes.


Fryette sells a padded carrying case, as well as hardware to have it rack mounted, so some of the transporting issues might be minimized. I was considering rack mounting mine but am a little concerned whether rack mounting it would cause over-heating problems with it being in such a confined space. The padded case definitely seems like a good idea though, so I got that, along with their lighted footswitch, to complete the package.



~~~~



SOUND

So the number one question has to be "Does it retain the amp's original voice"? The answer, in my opinion, is basically "yes", BUT! It's not quite that straight forward either.

For one thing, since it has several switches and knobs that can be used to adjust the tone, by design there is no preset "exact copy" setting. That said, after tweaking things I was able to do an A/B sound test - where as far as I'm concerned any differences were virtually imperceptible *(at "unity gain": where the levels are the same whether the unit is bypassed or not).

Of course the real test is how it sounds when the volume is raised or lowered and what I found so far is that the original tone seems to hold true, with the only real exception being when turned down to very low levels, but I think that has more to do with "the laws of physics" rather than any "device based tonal degradation".

You see, as the the volume is decreased on the PS-100 some of the highs seem to get lost (just like they do on most attenuators), but I suspect that this is more of a mechanical trait of any amp not providing a speaker with an optimal amount of signal strength. It just makes sense to me that any extremely low volume level will eventually lose some magic at a certain point. Amps with Master Volumes experience the same problem.

So I did find that I needed to adjust each channel's Presence settings, in particular, depending on what volume I was using. The lower the volume, the higher the Presence setting. But just as importantly I found that the higher the volume, the lower I had to adjust the Presence setting.

This is also where the effects loop really comes in handy, since I ran an EQ pedal through mine and was able to further fine tune the tone no matter what volume I was set on. Plus, in the case of my Deluxe, which has a single "treble roll-off" type tone control, the graphic EQ can further dial in the tone in order to balance the amp's tone "post-gain" (after the amp's gain stages instead of before them) and NOT the guitar tone (which is what happens when an EQ is placed in front of the amp).

As far as loudness goes, this thing can get blaringly loud!

I haven't tried mine through a 4X12 cab yet, but I'm fairly confident that I can blast as much volume as I'd ever need using the PS-100. After reaching a certain level of loudness it can be difficult to say whether the original sound is "exactly" the same, and at that point the only question is "does it sound good or not"? So far I've found that it does sound "plenty good", with things like "dynamics" and "picking attack" remaining intact, transparently reproducing the "feel" of the original amp as far as I can tell.

The "Hi" and "Lo" Input Level Switch is great for dialing in the best volume range needed. These labels seem a little counter-intuitive though, since setting it to "Lo" is actually what you'd use to make low powered amps dramatically louder and "Hi" doesn't get nearly as loud when either of the PS-100's channel volumes are cranked all the way up. In other words, the "Hi" setting is most likely what you'd use in order to attenuate the amp's volume.

The pair of 3-way "Flat/Brite/Edge" and "Flat/Warm/Deep" switches seem to be well designed to cover the most usable bass and treble ranges. My Deluxe is so fat that it definitely doesn't need any more bottom end, but I did find myself adding a bit more highs using the "Brite" setting.

Each channel also has individual "Presence" and "Depth" controls to tweak things even further. The "Presence" helps to dial in more top end brilliance while the "Depth" adds more bottom when needed. Once again, my Deluxe has so much bottom end that I pretty much have the "Depth" knobs rolled all the way off. The Deluxe could use a tad more top end though, so I found having the "Presence" knobs turned up to be a blessing in my case.

I haven't had a chance to try any of the "Line In" or "Line Out" features yet, otherwise the PS-100 pretty much does what they say it can do as far as I'm concerned.


~~~~


So, is the Fryette PS-100 a "must have" device?

Certainly not. But, for what it does, I think any serious performer who has a personal attachment to a specific amplifier would find something like this to be invaluable - even amps packed full of features!

For example, my other favorite amp is a Mesa Boogie TA-30 TransAtlantic which has an advertised overall output of 40 watts. It also has two footswitchable channels with a combined total of 5 "Modes" (Vox, Fender, Marshall and Mesa voices). These channels also have three power output level settings each as well (15 watts, 30 watts and 40 watts). In fact, my TA-30 pretty much covers just about any sound I normally require, and, as much as I'd like to take my Deluxe everywhere, I have to admit The TA-30 is often the better choice.

BUT. What if I find myself needing just a tad more output than what it can deliver? Or maybe I just desire a bit more clean headroom for a certain ambience? Needless to say I will probably always have the Fryette PS-100 hooked up and ready to go at any important gig - even if I don't use it... you know, just in case.

Obviously 100 watts can be overkill in most situations, and, truth be told, I could have probably gotten away with getting the Fryette PS-2 (which has only 50 watts), but for about $100 more the PS-100 has twice the power and an extra channel, so for me it was a no-brainer.

While I may never use the 100 watts this amp has on tap, it's still comforting to know that any setup I choose to take will have the ability to reach practically any volume I need. But, just as importantly, I may also need to turn the volume down in certain places as well, and this way I can rock the amp's sweetspot without the risk of blasting people in smaller clubs too.

Anyway, so far the Fryette PS-100 has totally lived up to every possible expectation I've had and I highly recommend it to anyone looking for maximum flexibility for their favorite rig...

Good Luck!

PS-100 b small.jpg

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sam_in_cali

Scream for me Strat-Talk!
Silver Member
Feb 21, 2014
16,750
SoCal
GREAT write-up! I contemplated getting one of these mainly for the attenuation aspect but ultimately felt that would be overkill for the price and what all it can do but I would never end up using. I wish I had that info above early on...would have save me a lot of time researching!
 

AxemanVR

I appreciate, therefore I am...
Silver Member
Feb 8, 2014
6,125
Minnesota USA

I just got my PS-100 “accessories”, a Carry Bag ($85 total) and a two-button lighted footswitch ($58 total):


PS-100 Carry bBag.jpeg
PS-100 Footswitch.jpeg


Nothing earth shattering to report; The carry bag snuggly fits my PS-100 with enough stretch in the front pocket to squeeze in the footswitch - although there’s not as much material on the pocket’s outside to protect the footswitch, so I plan to be careful not to bump it against things.

The footswitch is heavy and sturdy with two LED lit switching circuits; one for channel switching and one for turning the effects loop off and on.

I’d say both are reasonably priced and I’m glad I got them...
 

RPKennedy

Senior Stratmaster
Platinum Supporting Member
Apr 27, 2013
2,357
Oconomowoc, WI
Great writeup, thank you.

I have the Fryette PS-2. Less money, less functionality.

It has proven invaluable for me, living in an apartment and being able to crank my Victoria Ivy League to its sweet spots without the neighbors even knowing.
 

Arrested Dev

Strat-O-Master
Silver Member
Jan 18, 2022
662
Austin, TX
I wonder what the price sensitivity curve is on this thing (or whatever it's call in economics where price impacts volume sold, I can't remember that stuff). If the PS-1 were $650, would Mr. Fryette sell 2x (or more) of these units - - all assuming people know about their capability.

For each person looking to buy another amp, because all of his current ones are "too loud", this just appears to be the answer. And/or, I wonder if there will be another offering/mfr that follows this same tube-based format.

Interesting and fun times in the guitar/amp gear world.
 

AxemanVR

I appreciate, therefore I am...
Silver Member
Feb 8, 2014
6,125
Minnesota USA
I wonder what the price sensitivity curve is on this thing (or whatever it's call in economics where price impacts volume sold, I can't remember that stuff). If the PS-1 were $650, would Mr. Fryette sell 2x (or more) of these units - - all assuming people know about their capability.
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I dunno, but it does seem odd that the PS-100 is only $100 more than the PS-2...

PS vs PS.jpg



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Torren61

Strat-O-Master
Dec 28, 2008
607
Humboldt County, CA
I bought my PS-2 from a Reverb seller for $525 and a rack mounting kit from Fryette for $75. If all my gear gets stolen, when the insurance company cuts me a check the first thing I'm going to buy is another Power Station.

Congrats on yours!
 

AxemanVR

I appreciate, therefore I am...
Silver Member
Feb 8, 2014
6,125
Minnesota USA

FYI stuff:

About a week ago I turned on my Fryette PS-100 and immediately heard a popping sound come through the speaker.

I could still hear the sound of my guitar but it was very faint and turning the controls had no effect on it.

The first thing I checked was the external fuse, which looked good (no surprise since the unit still lit up and made sound), so I figured it must either be an internal fuse or the tubes themselves.

After opening it up I did find a blown internal fuse, but unfortunately I didn’t have a spare and had to order some online.

As you may recall, when I first got my PS-100 I noticed a crackling noise, which I associated to perhaps a bad tube, and since I had to wait for the new fuses anyway, I decided to order a new set of tubes as well and make a fresh start - comforted with the knowledge that everything is new.

Here are a couple things I discovered in this exercise:

1) The internal fuse is a 2 amp 250 volt “fast blow” 5x20mm F2AL250V (not noted in the manual).

2) The power tubes in mine were Sovtek 6550WE.

According to something I found online, Fryette recommends “burning in” new tubes by turning on the unit and running it in “Bypass” mode for 30 minutes.

3) The phase inverter tube in mine is a JJ EC832 / 12DW7.

Please note, there are two PDF versions of the PS-100 manual. The most current one states using the 12DW7 while an older version shows 12AX7.

According to Dave, at Fryette Support, the first 100 units shipped with 12AX7 phase inverter tubes, but then were changed to 12DW7 for “better performance”.

~~~

There was something I never got a straight answer to though, and that was the subject of “power tube bias”…

The PS-100 manual says “Any type or brand of 6550 or KT88 tubes can be used in this amplifier without adjustment or modification.” - but then I saw @support at TGP state that it was safe “as long as they stay within the published operating range”.

I asked Fryette Support for more specific info on this range but never got a response.

Anyway, the original 6550WE tubes are labeled:

Ip: 70
Gm: 7,200

The new set of matched 6550WE I got from Sweetwater are labeled:

Ip: 58
Gm: 6,900

Since I never got an answer from Fryette I decided to just go with it and so far everything is working great.

The sound is pristine, with no crackling noise to be heard and so far everything seems to be better than it was before, so I’m thinking a “bad tube” had something to do with it.

Anyway, hopefully this information is useful to someone…



 
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Snaked Strat

Strat-Talker
Mar 17, 2022
411
Australia
I've had PS-2 for over 3 years.
It's cheaper and lighter than PS-100 and re-amps to 50w - which is more than enough for most people.
People don't require the extra features on PS-100 unless they have a specialist need imo.

The OP has listed 6 "downsides" for PS-100 but I don't think any of them are downsides on PS-2.

PS-2 is cheaper, lighter and smaller than PS-100.

My PS-2 has never had any crackling noise, it runs no hotter than any tube amp and don't know if it will amplify any extranenous noise that's coming from another part of the chain in my rig cos I make sure I never have any.
Why should anyone expect PS to remove unwanted noises from your rig ?

The OP also didn't mention another 2 big advantages of Power Station.

a) It greatly improves the tone when connected to a modeler or SS amp. It retains the tonal character but warms it up cos it's now running through a 50w tube power amp.

b) The attenuation ability of PS is controlled by a sensitive dial with good sweep so you can easily adjust the volume to desired levels. All its attenuation competitors have a click shifter with 10 to 20w between shifts. Inevitably it's rarely possible to adjust volume to desired levels with the alternatives. Don't get an attenuator with a click shifter :cool:

I've run my PS-2 through about 20 different amps at home, gigging and recording.
It's totally transparent in not changing the base tone of another tube amp imo.
Any perceived changes are due to the Fletcher-Maunsell curve or are not audible to the human ear :)
 
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AxemanVR

I appreciate, therefore I am...
Silver Member
Feb 8, 2014
6,125
Minnesota USA
I've had PS-2 for over 3 years.
It's cheaper and lighter than PS-100 and re-amps to 50w - which is more than enough for most people.
People don't require the extra features on PS-100 unless they have a specialist need imo.

Sure, but for some people (like me) spending only $100 more was totally worth it for a variety of reasons - including some things I hadn’t considered before getting the PS-100.

So it’s a case of sometimes not realizing the need for a certain feature until you actually get a chance to use it.


The OP has listed 6 "downsides" for PS-100 but I don't think any of them are downsides on PS-2.

I was just trying to be balanced in my review, pointing out the pros and cons in this case - thinking in terms of other accessories like effects pedals, etc - where the PS-100 (and PS-2) are much bigger, heavier and hotter than other typical amp related devices.

…don't know if it will amplify any extranenous noise that's coming from another part of the chain in my rig cos I make sure I never have any.
Why should anyone expect PS to remove unwanted noises from your rig?

I believe you are misunderstanding my point…

If a 12watt amp has some hiss, not surprisingly that hiss will be much more noticeable at 100watts.

Just pointing out something that people may not think of before getting one.

It's totally transparent in not changing the base tone of another tube amp imo.
Any perceived changes are due to the Fletcher-Maunsell curve or are not audible to the human ear

Well, I was just postulating about whether something like a 12watt Deluxe sounds "exactly" the same as it does when pumped through another 100watt amp via a reactive load coming from the smaller amp's speaker output.

Maybe it does, maybe it doesn’t.

The greater point I was trying to make had to do with whether it “sounds good or not”, where I concluded that it does in fact sound “plenty good”.

Since there’s no such thing as a 100watt 5E3 circuit, that’s about as honest an answer as I think anybody can provide if you ask me…


 
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