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Synergy SYN-5050 Rackmount 2 x 50-watt Tube Amp Used

Name: Synergy SYN-5050 Rackmount 2 x 50-watt Tube Amp
Brand: Synergy
Rating: 4.5 (13 reviews)

100W 1U All-tube Rackmount Power Amp with 2 x Channels, 2 x 12ax7 Preamp Tubes, 4 x 6L6 Power Tubes, Individual Volume Controls, Master Presence, and Master Resonance

13 reviews Write your review Item ID: SYN-5050U1

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This item is in fair condition with some signs of use but is in perfect working order. The plastic screw nuts for input jacks broke off, but this doesn't effect unit operation. Includes all accessories. This item ships in upgraded Sweetwater packaging.

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100 All-tube Watts for Your Synergy Rig

The Synergy Amplification SYN5050 100-watt, all-tube power amplifier is the perfect companion to the company's SYN2 rackmount preamp. This Steven Fryette design is also a capable two-channel design for powering any of your other electric guitar preamps. Each channel can push up to 50 watts on their own, or you can bridge them for a full 100-watts of performance. And tuning the SYN5050 1U rack power amp's detailed-sounding 6L6 tone is effortless thanks to master presence and resonance controls. Whether running a full Synergy rig or just looking for a high-quality tube guitar power amp, the SYN5050 fits the bill.

All-tube power from Steven Fryette

When it comes to rackmounted electric guitar tube power amps, Steven Fryette has surely made a name for himself. His Fryette and VHT power amps are found in the rigs of some of the most popular guitarists today. When he turned his sights on this Synergy Amplification SYN5050, he brought all of this experience to a new design that complements the Synergy boutique tone perfectly. Whether running this power amp in stereo or mono operation, you'll appreciate how it's glowing set of 6L6 power tubes bring a new level of clarity and harmonic detail to your tone.

Synergy Amplification

Merriam-Webster defines synergy as, "A mutually advantageous conjunction or compatibility of distinct business participants." With Synergy Amplification's combining of tube-amp talents that includes Dave Friedman (Friedman), Joe Morgan (Morgan), Steven Fryette (Fryette and VHT), Mike Soldano (Soldano), and Peter Diezel (Diezel), the name is a perfect fit. Each product is painstakingly crafted by these titans of the tube-amp world, ensuring every nuance of their legendary amplifiers is translated to your tone. For the most iconic tones in the most convenient package possible, Sweetwater is proud to offer you Synergy Amplification.

Synergy Amplification SYN5050 All-tube Power Amplifier Features:

Rackmount electric guitar power amplifier
2 x channels capable of pushing 50 watts each
Switch to mono operation for up to 100-watts of tube tone
Perfect complement to the SYN2 rackmounted tube preamp
Designed by legendary amp designer, Steven Fryette
Master presence and resonance controls dial in the amp to your rig

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Tech Specs

Type: Tube
Number of Channels: 2
Total Power: 100W mono, 2 x 50W stereo
Preamp Tubes: 2 x 12AX7
Power Tubes: 4 x 6L6
EQ: Presence, Depth
Inputs: 2 x 1/4" (channel A, B)
Outputs: 4 x 1/4" (4/8/16 ohms)
Effects Loop: No
Power Source: Standard IEC AC cable
Height: 1.75"
Width: 19"
Depth: 14"
Weight: 24 lbs.
Manufacturer Part Number: SYN-5050

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I have the syn-2 dual module pre-amp dock and bought the SYN-5050 to use as the dedicated power amp for my Synergy system. The device is extremely well built and sits very securely in my rack mount for it.

There are lots of useful features that make setting it up for many different cases a breeze. It can be run as two 50w stereo power amps or you can flip a switch and bridge the channels for a mono 100w power amp. I prefer to run it bridged 100w mono for the extra headroom. It's particularly useful for the higher gain metal oriented preamp modules.

There is independent volume controls, which are very effective and do allow you to play at reasonable inside levels. There is also a master depth and presence controls giving you plenty of tonal control over the power amp. It contains four 6L6GC power tubes. They provide lots of clean headroom, but respond as 6L6 tubes do when pushed. Overall they seem to be a very good match for every one of the modules that I have.

The single "con" that I will mention is that because this is a 19in rack mount poweramp, it requires a small cooling fan to run at all times when the power is on. It is very quiet, but noticeable if sitting close to the power amp and the room is otherwise quiet. When you are playing the fan cannot be heard at all, and if you sit/stand 5-10ft away from the amp you won't hear it either. It feel its worth noting since different people have different setups, and the fan sound may possibly be a factor.

There are not too many different options for stand-alone power amps currently, and I think that if you have the Synergy pre-amp this is logical power amp to get. I will also say that I have spoken with the team over at Synergy many times, and they are a great bunch. Very helpful and great about technical support for their products. I am very pleased with this purchase

I've been running solid state amps for 30+ years now. Tried tube amps back in the day (Marshalls, Randalls, Carvins, Fenders, Peaveys, etc...) but it seemed as though they always needed to be in the shop for one reason or another. Solid State was my choice for decades... Well, now here's this single rack space, all-tube power amp - I had to try it. Love it!!! Had the first rehearsal with the band last week and everybody could hear the difference. At first I thought it was just me being happy about a new amp; but, no... I heard it too, and they all said how great the entire room sounded! The SYN5050 has way more dynamic response than any other SS or older Tube amp that I have ever played through. Clean, clear, ballsy - every nuance of my picking comes through. I gave it 4 and a half stars because I need to use it more. Really happy with my set-up at the first 3-hour practice. This weekend I will gig it for 4+hours - more on that later! Try it, you'll like it!

This is an utterly amazing ONE rack space 100 watt full on powerful amp. At first I had some sort of noise floor but it was not the amp and having changed my rig all around everything is utterly quiet now except for the cooling fan which is not a big deal for me anyway.
I have a rather optioned Synergy rig at this point using this power amp with two SYN2's chained for 4 active modules. It is an understatement to express how great it is having an all tube system that is reliable and consistent. Sure there are modelers everywhere with the latest greatest digital "copy" technology. Synergy is an amazing way to get into using real amps with real tubes and being able to change out to different ones for a fraction of the cost. Best thing to have happened to the real guitar amp scene; as long as we have tubes, this is the peak.
One has to remember Synergy is high voltage real tube amp analog w no digital anything. Every module when running has (5) 12AX7's and (4) large bottle 6L6 tubes just like any major 100watt amp would have. The module contains (2) 12AX7's which are used for the distortion and gain cascade, the SYN units have (1) 12AX7 for signal preamping, the power amp uses (2) 12XA7's to preamp the level into the 4 power tubes just like any other amp would cascade gain and use preamp circuits. It is the REAL deal, no short cuts nothing lacking from any other major boutique wattage head.

I've been using solid state for over a decade now due to my older tube amps constantly in the shop. This is the first rack style power amp I've purchased. Just running my pedals and or modelers through it at the moment and it sounds glorious. Not quite as loud as my solid states but still more than enough for a drummer to hear plus it sounds like glorious tube heaven compared to my old rig.
Will update when rack system is complete aka when I have the power conditioner,preamp and modules.

First off, no bad issue w this amp, my love for Synergy stuff is limitless at this point; I have experienced the same "noise floor hiss" in many amps and while only audible when not playing still there and annoying. Real tubes create more noise floor hiss to be sure, nature of the beast and all that. My present Synergy rig is running 8 total 12AX7s and 4 6L6 tubes so one might presume a bit of hiss, but...
So to start off I run Furman power conditioners, all one source power feeds, one path to ground so NO ground loop "hum" issues. This is that annoying "background noise floor hiss" when nothing is playing or often even on. All soldered high end EBS cables, quality Lava feeds to board and to Synergy preamps. Super high end thick speaker cables. Experimenting I just realize that the power amp would get a hiss as soon as you plugged anything into it even with NO signal!! I have seen this before with other power amps and powered speakers. And while it is not a quality or design issue far as I can tell, just seems to be something gear will do.
I just saw a keyboard guy on YT frustrated over it as well and could not solve it.
So.... SOLUTION.....I got a couple Lehle P Splitters for other uses and noticed they were very high end isolator blocks on the main out. I plugged these into the power amp and my pedalboard feeds into them going to the power amp and presto boys and girls, zero noise, no noise floor hiss at all! So Lehle P-Splitters isolated the main feeds to the power amp and shunt the noise with absolute transparent pass through of signal. Works!!!! I should clarify a NR Noise Gate will not help this problem as it is all the way in regard to the power amp final stage and no way to get a NR clamp onto it and that does not solve a problem merely covers it.....so annoying slight background noise hiss... LEHLE boys and girls!!

See also: Amp Heads, Synergy, Synergy Guitar Amp Heads, Synergy Rackmount Guitar Effects

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Synergy SYN-5050 Rackmount 2 x 50-watt Tube Amp Used

Condition Notes:

Or pay $159.99 for 6 months with Easy Pay

Ask An Expert

Most Popular Accessories & Related Items

100 All-tube Watts for Your Synergy Rig

Related Videos: SYN-5050 Rackmount 2 x 50-watt Tube Amp

All-tube power from Steven Fryette

Synergy Amplification

Synergy Amplification SYN5050 All-tube Power Amplifier Features:

What Is Used Gear?

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Tech Specs

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Customer Reviews

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Customer Added Media

Perfect compliment for the SYN-2

Great Dynamics

had this amp a while now....

Back to tubes

running tubes....slight noise floor hiss...uber quality high end rig...what to do.....LEHLE!