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  • Four Force EM-1 Guitar Amplifier Black/Silver
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Four Force EM-1 Guitar Amplifier Black/Silver

13 customer reviews

Available from these sellers.
  • Patented Tube Illusion circuitry allows sound control similar to high-end tube amplifiers
  • JFET Class A Power Amp
  • 4 stages of gain for amazing preamp distortion
  • Handles high speed shredding without stutter
  • Frequency response extends well below the lowest note you can hit on your guitar
1 new from $64.99

Product Description

5 watt, Class A, amplifier using state of the art J-Fet pre-amp & audiophile MOSFET power amp to bring out all the details of your music. Amazing low end response to bring life to the lowest notes of your guitar - notes you only hear in high end boutique amplifiers. Extreme gain with 4 discrete gain stages to drive searing lead tones usually only available with external distortion pedals. Unique pre-amp allows you to finally have independent control of gain and volume - this allows you to set the amp at maximum gain yet still be able to play at low volumes with excellent sound. Low background noise - even with the highest gain setting due to unique J-Fet pre-amp and state of the art power supply isolation techniques. Excellent dynamic range - allows you to play softly and really dig in without any amplifier compression, unlike typical modeling amps. Unique Patent Pending TUBE ILLUSION circuit allows a very smooth transition from clean to overdrive(like high end tube amps). Easy to set up at the edge of distortion and move from clean to distortion by how hard you strum. Able to handle high speed shredding with tight and focused response - no stuttering common in lesser amps. 5 watt amp able to be driven to very loud sound levels - even drives big 4 x 12 cabinets like the Marshall 1960. Can drive speaker loads from 4 ohms to 16 ohms with ease. 16 ohms yields maximum power at 5 watts.


Product Details

  • Item Weight: 12 pounds
  • Shipping Weight: 30 pounds
  • ASIN: B009MAISA8
  • Item model number: EM-1
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (13 customer reviews)
  • Amazon Best Sellers Rank: #46,900 in Musical Instruments (See Top 100 in Musical Instruments)
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at Amazon.com: October 5, 2012

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

4 of 4 people found the following review helpful By B. Thigpin on April 12, 2014
I'd watched some videos on youtube and read a few reviews of this amp, and finding one for sale very cheap locally, went ahead and purchased it. I never write a review in the "honeymoon" phase, so after owning this amp for several weeks, here are my thoughts:

Pros:
-Unique and extremely rugged design
-Excellent sound (when dialed in correctly)
-Sounds better than many all tube amplifiers
-Responds to pedals very well
-Great playing dynamics, very nice "organic" tube like feel
-Angled speaker and ports really open up the sound

Cons:
-Mostly a one trick pony
-EQ has very little effect on the sound
-Gain and level are very sensitive

This amplifier does basically just amplify your sound, meaning that a Strat will sound like a Strat, and a Les Paul will sound like a Les Paul when played through it. Whereas with a lot of solid state and modelling amps, pretty much everything sounds the same no matter what guitar you're using. The touch dynamics really are amazing. Pick soft and you get a soft sound; pick hard and you get a harder edge sound. Turning down the volume on your guitar will clean up the signal as well. Pedals sound awesome through it. I can wholeheartedly say that this amp sounds better than the Blackheart Little Giant and Kustom Defender 5H I compared it to.

Now on to the bad. I know this is based on a vintage Class A tube design, and that may be part of the reason the EQ functions the way it does. As other reviewers have mentioned, the amp really sounds best when the bass and middle are turned all the way up, and the treble is somewhere around 5 or above.
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3 of 3 people found the following review helpful By Chancesrurnot on February 14, 2014
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This thing won "Best In Show" at either the 2013 or 2012 NAMM show. I can't remember which one There is a reason it won: It works precisely as it's advertised to work! The guy that designed and built it is an engineer, and I must say that he did one hell of a job! For the price you will never find a better amp than this one. Period! I own old Marshall amps and this thing comes as close to emulating them as I've ever heard. If you play the strings softly there is very little distortion, but if you dig into the strings it distorts just like my Marshall. I've actually recorded with this thing and professional musicians thought it was my Marshall. This thing is no joke! I just bought it on a lark, and because it was so cheap. I was very pleasantly surprised by this thing. I'd highly recommend it to anyone! I'm not going to tell you where, but if you look around you can find this amp for much cheaper than it's being sold here. I know of one place selling it for $99.00. I paid $119.00 for mine, but that included free shipping.
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1 of 1 people found the following review helpful By BTQ on April 17, 2014
Verified Purchase
I agree in all the above. The pros and cons. But one thing was not mentioned. It has a speaker out jack. At the practice studio, I plugged it in to a Marshall 4 X 12. GREAT sound. I can't figure out how it can do that.The other guitarists laughed when I brought it in. They changed their minds after. Hard to believe this little guy can do that. Can't wait to see the new stuff this company produces.
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1 of 1 people found the following review helpful By A. Turner on March 27, 2014
Verified Purchase
Great practice amp or as miked for studio or PA. Just simply needs more power for anything else. Nice tone. Very smooth. Sounds best for me with bass and mid on 10 and treble on 6 or 7. Linear sound projection and the floor angle is great. Very light!
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I agree with most of the opinions expressed by Thigpin. For a $99 New in box that I bought on E-bay, this amp is a good value. I also own a genuine vintage 1965 Fender Deluxe, a genuine vintage 1967 Fender Bandmaster that drives a 2 X 12" cabinet loaded with English Celestion GT-75's. Does the Four Force compete with the tonal complexity & richness of the Fender amps? Not even close.

The four force sound is rather bright and one "note-y". Tonal complexity with pleasing even order harmonics is not existent. Though for the price it sounds a whole lot more pleasing than other $99 practice amps. With the drive & master volume pots at 12 o'clock, the amp sound has just a bit of overdriven hair, more like a 2 day old beard. With the pots cranked the tone is overdriven to the point of fuzz box. Roll back the guitar volume and the tone cleans up to a blues approved overdrive sound. Note: This amp sounds WAY better with humbuckers than single coils. My Les Paul sounds straight forward and ballsy. My Stratocaster sounds thin and wimpy.

The Bass, Mid, Treble knobs don't do much. If you have them all on zero the amp volume is almost inaudible. These are active tone controls. They are also interactive to the point of uselessness. Crank the bass & treble, turn the mid down to zero. You'd expect a "sucked-out" tone popular in 1980's metal guitar style. You don't get that. Honestly I don't hear much difference in the tone no matter where the knobs are turned. So I put them all cranked fully for maximum volume potential.

Big con: Despite what other reviewers say, this amp does play well with guitar pedals. Especially if the pedal gain is set above unity (0 dB).
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Want to discover more products? Check out these pages to see more: 5 watt tube amps, guitar tube amp