Product Comparison: Fender Pro Junior III vs Fender Blues Junior III

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General Specifications
Pro Junior III
Blues Junior III
About the Product
The world's most popular tube amps just got better! Fender Hot Rod series amplifiers are found on every stage in the world, large and small, and are used by guitarists from all walks of life. Hot Rod amps deliver unmistakable Fender tone and are the perfect platform for musicians to craft their own signature sound. These no-frills amps are affordable, reliable and loud, and they pair extremely well with stomp boxes. The Pro Junior III is a simple, uncluttered 15-watt tone machine - a great grab-and-go tube amp for stage and studio. It delivers the fat mid tones characteristic of EL-84 output tubes, driven by a dual-12AX7 tube preamp and a 10" Fender Special Design speaker with vintage cone. It all adds up to incredibly touch-sensitive dynamic response that experienced players prefer. Other features include a unique clean-to-drive volume control, and external speaker capability. Additional Pro Junior III upgrades include an easier-to-read black control panel with front-reading text, new badge, vintage Fender "dog bone" handle, vintage-size jewel light, lower-noise shielding, rattle-reducing shock absorbers for the EL-84 tubes, and heavy-duty set-screw "chicken head" knobs.
The standard for gigging guitarists worldwide and the ideal amp for crafting your own signature sound. Working guitarists everywhere prize no-frills Hot Rod amps for their great volume, reliability, responsiveness to effects pedals, and affordability. The Blues Junior III is a longtime 15-watt favorite with warm tone ideal for the go-anywhere guitarist who needs to hit the stage or studio at a moment's notice, with great sound and versatile features.
Key Specs
Power Output
15 watts
15 watts
Number Of Channels
Controls Included
Volume, Tone, Power switch
Volume, Treble, Bass, Middle, Master, Reverb
Footswitch Included
What customers say about "Key Specs"
Fender Pro Junior III 15-Watt 1x10-Inch Guitar Combo Amp
  • I used it at a gig 5 days after receiving it. It superceeded my expectations. It provided more high quality sound than I thought it would be capable of. I highly recommend this product.
  • This is a moderate powered as in 15 watts EL84 powered tube tone machine. I play in a band that covers classic rock and blues tunes and need something that can keep up with a fairly loud drummer and two other electric guitars.
  • Great tube amp tone and power beyond expected for 15 watts!! This should come with the footswitch, however. Would avoid a nusiance purchase.
  • 15w is "powerful" and is sufficient for practicing!
  • The sound of this is VERY warm and clear even I am using a Gibson lp classic with the most powerful pick up.
Fender Blues Junior III 15-Watt 12-Inch Guitar Combo Amp
  • The new Celestion A-Type speaker gives better clarity and bigger lows. It's capable of extremely loud and clean. Also has a nice warm tube breakup tone when needed. It's a jazz and blues monster.
  • The Reverb has been tapered back so it's not over the top. I always had problems with reverb live but not with this one. The highs are less harsh than the previous BJ 3 model which sound wilder, less focused.
  • Fender really did something special here. The tone is much tighter and delivers some shine and growl compared to the older versions. A top notch low wattage amp for the money.
  • Unreal tone and great control. Sounds rich and for 15 watts this amp is loud!
  • The first note I played on this amp I fell in love and new that I would buy one. I love the reverb and the simple controls. I mainly play clean / bluesy so this amp suits me perfectly, even when I only play it at 3. It doesn't sound bad when I turn up the pre-amp either.
Size & Weight
14 in.
16 in.
15 in.
18 in.
8.75 in.
9.81 in.
20 lbs.
31 lbs.
What customers say about "Size & Weight"
Fender Pro Junior III 15-Watt 1x10-Inch Guitar Combo Amp
  • I've been looking for a small, light weight amp that has great tone and a small foot print. This was it.
  • The size of this amp is just about right! Makes it a best choice for apt using.
  • This is a fun, solid little amp. Don't be shy about the size - there's plenty of volume and great tone in this little box.
  • It's reasonably priced, and you get that fender clean sound and reverb..all in a 1x12 that's freakin kinda heavy (lol) but manageable..and nice size for your car.
  • he downside is this thing is ridiculously heavy - the shipping weight is 70lbs, and there's practically nothing in the box EXCEPT the amp, so this amp is close to that in weight. This is even more surprising when you see it - it's not dramatically bigger than a typical 1x12
Fender Blues Junior III 15-Watt 12-Inch Guitar Combo Amp
  • Relatively Light Weight and easy to use.
  • All the great string dynamics and tone of a pure tube amp, in a small lightweight, easy to use package.
  • Sounds great, lightweight portable and doesn't take up much room.
  • It's not heavy. this thing is portable and we can get on our concerts.
Guitar Amplifier
Guitar Amplifier
Number Of Speakers
Speaker Size
10 in.
12 in.
Carry Handle(s)
1/4" (instrument)
1/4" Speaker
Foot switch
Black textured vinyl covering with Blackface-style black/silver grille cloth
Fender spring reverb, Single channel and input, Preamp tube overdrive, FAT boost switch
Compatible With Footswitch
1-Button ("Fat" ON/Off)
What customers say about "Features"
Fender Pro Junior III 15-Watt 1x10-Inch Guitar Combo Amp
  • The channel switches are probably one of my favorite features on the amp, you can get a nice clean sound on the clean channel, or a more crunchy/dirty sound on the overdrive channel, but there is also a "super" overdrive channel that sounds fantastic!
  • Magnificent cleans! Although it takes pedals extremely well, lately I find myself just plugging straight in!
  • I have owned this amp for 20 years and have just sent it out to be re-tubed for the first time. It is still working fine but has a crackle after it warms up. I assume that the old connections on the tubes are loose.
  • Amazing amp great warm tone but out of the box they all need a smoother speaker. The original is very compressed spanky and just harsh for a warm blues too in the highs frequency range. I bought a patriot cannibis rex 8ohm for this and it fixed the tone
  • That's not a complaint about the limits of my first amp, which I suspect I will always use with a single guitar attached. But it recognizes the no-stress output from this fine four-speaker cabinet.
Fender Blues Junior III 15-Watt 12-Inch Guitar Combo Amp
  • This amp takes all my pedals real well and the Celestion speaker is a big plus.I own five Fender tube amps but this one is my favorite.
  • The Volume control acting as a "gain" control for the master volume, and the fat switch acting as a boosted second channel to funnel just enough oomph to make lead breaks soar.
  • This little amplifier has a great fat tone for rock and blues with 12" speaker. Surprising power loud enough to be heard in a large music store.
  • My problem is the tone of this amp. It has a fat boost switch, however there is no jack for a pedal switcher. This is needed very bad, as for clean you need one and dirty you need another on this amp. I tried many different kinds of overdrive as well. Just doesn't sound as good as it should.
  • I have tried two of these amps. The first one exhibited an intermittent "crackling noise" like a short in a connection or a tube issue. This amp was exchanged for another one that has a constant "buzz" that seems to be associated with the reverb (it disappears when I turn the reverb completely off).
Warranty / Certifications
Manufacturer Warranty
2 year(s)
2 year(s)
Other Information
529.99 $

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