Review: Tube Research Labs Samson monoblock amps Amplifier


Category: Amplifiers

This is a review of the latest solid state, mono-block amps from Tube Research Labs (TRL). They are named Samson by the builder Mr. Paul Weitzel of TRL.

Please to go my system link below to better understand my room set-up and ancillary equipment. This will help you better understand the full context of my review.

I also encourage you to look at the long list of amplifiers I have owned or listened to extensively in my home system over the last 5 or so years. I have been very active on Audiogon as demonstrated by my feedback and long list of amplifiers. I have been fortunate as I have sold gear for audio friends who had wonderful gear. This has enabled me to play with some fantastic gear over the years.

Finally, I listen to female vocalists, jazz, a little classical, piano and guitar instrumentals, contemporary Christian and alternate adult music. Some of my favorite artists include Van Morrison, Beth Orton, Sarah Groves, Aimee Mann and Rickie Lee Jones. I like to listen with the lights off and often with my eyes closed. Music is the way I relax and get away from all that fills my head in a given day.

Samson mono-block amps
______________________

I am not a technical person and will do my best to tell you a little about these amps. Please call TRL if you have questions as I can report on my experience with these amps only.

-Paul states they put out close to 300 watts per amp.
-Mine are single ended, but think Paul can build yours as needed.
-No fuses as TRL employees a circuit breaker as the on/off switch.
-They always run cool no matter how long or hard I drive them.
-Very quiet – no real mechanical or chassis noise.
-See my system pictures for cosmetics.
-$5500 for the pair
-Shipped in a custom made wood crate very well padded and secure.

My experience with the twin Samson amps
_______________________________________

Let me say upfront that I do enjoy trying new gear and hearing the differences between components in my system. This was never a hassle to me, but fun. This has now changed as the TRL amps make music in a way that no other component has conveyed. This was true of the TRL S225 integrated amp and now even more so with the new Samson amps.

We all try gear and notice that this one sounds more transparent and that one has more midrange warmth and on and on…….. They do all sound a little different and sometimes greatly different. Some certainly outperformed others. I even recall saying one “killed” another with its overall performance. However, looking back they all had some limitations and in one sense they all sounded alike – like reproduced music. Here is where I begin trying to share my experience with these Samson amps in relation to all others I have enjoyed.

For me the Samson amps paired with the Dude tube preamp (TRL) broke through a sound barrier I truly thought was not even possible. This is why I am no longer compelled to try another amp flavor.

So, in what ways do these amps break new ground? Ok, this is a time where those standard Aphile descriptions just don’t reach far enough. The Samson amps are the standard for neutrality, imaging, bass authority, transparency, tonality, extension at the frequency extremes and so many other attributes based on my experience. Fellow music lovers let’s move beyond the elementary and onto the real deal.

Musical instruments and voices now sound live and not bound by the constraints of hardware. My words will fall short of my experience here as this really must be heard to be fully understood. The piano is now released in my music room. It sounds so live and un-reproduced. It sounds real and so right. The attack of the keys is alive and full of energy. The body of the instrument is palpable. Every key stroke is discernable and presented with utter clarity.

Kick drums come alive with impact, energy and realism I have only heard at the best live concerts. Voices flow with a sense of space and dimension that literally places the artist before you.

Even my most complicated jazz recordings come alive with discernable instrumental lines that were previously completely lost or blurred. Background notes, vocals and phantom sounds now BECOME part of the music. You must hear this first hand!

Does it sound like a tube or SS amp? My answer is very simple. It sounds like live music. I don’t even think about that notion with these amps. It seems so off point now. Please keep in mind I mate these amps with a nice tube preamp (review coming).

Never do these amps even hint of being compressed or strained in my system. My 8 ohm speakers are 90db efficient and I play music as loud as 102 db at rare –very rare times. The music grows in size as the volume is turned up. It never shouts at you screaming “I’m very loud”. Rather, music swells and its impact is awesome to experience. The other powerhouse amps I have owned are boys in this regard. The Samson amps are men. They are always in complete control adding to the live musical experience.

Yes, you will hear music previously lost in your system. Yes, there is air and space around each instrument as music floats from the blackest background imaginable. The Samson amps are state of the art in this area. They are pure magic to experience. I hear a whole new dimension to the music in my room. I can close my eyes and get so lost in the music. I feel and sense the piano behind the sax player over to the left and Van the Man just turned his head in the studio!

I will end by saying the Samson amps delivered music as I have never experienced in my dedicated room. They broke though a performance ceiling I thought all amps had in common.

Associated gear
Click to view my Virtual System

Similar products
TRL S225 stereo integrated amp
Canary CA339 monoblock amps 300B P/P
Thor TPA 30 monoblocks
CJ MV 60
VAC Musicbloc monoblock amps
Wright Sound 2A3 monoblocks
Bruce Moore Dual 70
Various hybrid Blue Circle amps
Parasound JC1 monoblocks
Mcintosh MC402
Belles 350A monoblocks
Belles Reference 350 stereo amp
Monarchy SE160 monoblocks
Marsh a400s
Joule VAMP
Wavac SET amp (dont recall the model number)
Cary V12R stereo amp
Thor TPA 30 monoblocks
CJ MV 60
Wright Sound 2A3 monoblocks
Bruce Moore Dual 70
Various hyrid Blue Circle amp
Parasound JC1 monoblocks
Mcintosh MC402
Belles 350A monoblocks
Monarchy SE160 monoblocks
Marsh a400s
Joule VAMP
Wavac SET amp (dont recall the model number)
Mcalister PP150S stero amp
Butler TBD 5150
Deja Vu EL34 prototype stereo amp
MFA D75 monoblock amps
128x128grannyring
Grannyring,

The Samsons were not up to the task driving SoundLabs?! Weird, given their high current, high voltage reserves....Did they "spit" sibilants at high volume I wonder?
I ve heard the Atlas amps on couple of occasions and found them just ok, a typical, politically correct audiophile sound, especially compared to the Tube Research Lab Tube mono 400s...Granted, those are much more money these days, but if we are talking absolutes, have you listened to the lesser tube Tube R. Labs models? Regards....
The Samson amps always sounded better on any box speaker I tried compared to other SS amps. The problem was only with the Soundlab's. I would not even call it a problem. They sounded quite good. I went to a 600 watt per channel amp that was load invarient and did not care about the speaker's very high 40-50 ohm impedance in the bass region.

I have never had a chance to compare the Atlas to the Samsons. My Atlas is the stereo amp with wonderful Hydron Red base NOS's that really improved the sound. That combined with the TRL power cord on my Atlas makes for a great sounding amp on my speakers. It is always about total system synergy.

I wish I owned the Samson's now as I bet they would sound great with my Nola speakers. The Samson's were simply glorious on my Silverline Bolero speakers as well as my Dali Grand speakers.

Soundlab speakers are quite a different animal with impedance swings from 2-50 ohms. Many SS amps do not like to see high impedances like 40-50 ohms in the bass area and can begin to sound tipped up in the highs as the volume is turned way up. This is why 600 watts per side worked better for me.
Forgot to mention most SS amps only put out a very small fraction of their rated power into impedances as high as 50 ohms.
Well are not the OTL's best suited for the Sound Labs? I remember roughly 15 years there was a company Sans Pereil which produced highly musical amps... I used to own Acoustat Spectra hybrids and on one occasion drove them with a solid state amp with no problems..Granted I agree that Sound Labs present a unique ascending load....