Fender Bassman 100T 100-Watt Tube Head

100-watt , 2-channel All-tube Bass Amp Head with 25W Knockdown, XLR-out, Silent Record mode, and Fender Automatic Bias
5/5 1 Write review Item ID: Bassman100T
Fender Bassman 100T 100-Watt Tube Head image 1
Fender Bassman 100T 100-Watt Tube Head image 1
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Fender Bassman 100T 100-Watt Tube Head
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The Blackface Bassman's Back

The Fender Bassman 100T bass head. Fender's legendary bass amp is back in all its Blackface glory - and more serious than ever. Sporting vintage Fender mid-'60s visuals and professional all-tube technology, the Bassman 100T head serves up 100 watts, along with modern features such as Fender's automatic bias, an XLR out, and two channels: vintage (classic Fender warmth) and overdrive (the responsive, aggressive sound of a modern active tone stack). You can even knock it down to a studio-friendly 25 watts. Power your bass rig with a legend - the Fender Bassman 100T.

Fender Bassman 100T Tube Bass Amplifier Head at a Glance:
  • Two channels: the best of vintage and modern tone
  • Automatic Bias: the best of vintage and modern technology
  • XLR out, direct record mode, and more
Automatic Bias: the best of vintage and modern technology

The Fender Bassman 100T bass amp head gives you the best of vintage and modern. You get Fender's classic tube mojo - juiced with sophisticated technology such as Fender's very cool Automatic Bias that keeps you from spending time messing with your amp's tubes when you should be playing. Automatic Bias constantly monitors and automatically re-biases tubes for optimal performance - and even alerts you when service is required!

Two channels: the best of vintage and modern tone

The Fender Bassman 100T puts the best of vintage and modern tone right under your foot. The 100T has two footswitchable channels - vintage and overdrive. The vintage channel serves up the round, warm, classic Fender sound of a passive tone stack. Kick this valve beast into overdrive, however - and prepare for shock and awe. You get the tight, responsive, aggressive sound of a modern active tone stack. "Versatile" would be far too weak a word. "Jekyll and Hyde" might be more like it...

XLR out, direct record mode, and more

The Fender Bassman 100T bass head is packed with cool features. Want to record at home late at night? No worries. Simply use take the XLR out straight into your DAW. The 100T's internal power soak captures your tone after the power amp - giving your recording all the beef of a live performance. Want play at "unplugged" small club levels - but with full-on tone? Just engage the 25 watt switch, and you're gold.

Fender Bassman 100T Tube Bass Amplifier Head Features:
  • 100/25 watts (switchable); all-tube
  • Two channels - Vintage, Overdrive (footswitchable)
  • XLR output, silent Record mode (internal power soak captures the signal post-power amp
  • Fender Automatic Bias makes living with tubes a pleasure
  • Included footswitch

The Fender Bassman 100T bass head: play the legend!
NOTE: This product is available in the United States only - no international sales.

Additional Media

Bass Guitar Amp Buying Guide

Tech Specs

Type Tube
Number of Channels 2
Total Power 100W/25W
EQ 3-band (Sweepable Mid on Overdrive Channel)
Preamp Tubes 2 x 12AX7
Power Tubes 1 x 12AT7, 4 x 6L6
Inputs 2 x Instrument
Outputs 1 x Speaker, XLR Out
Footswitch I/O Yes (Footswitch Included)
Effects Loop Yes
Height 10"
Width 24.5"
Depth 10.63"
Weight 48.5 lbs.
Manufacturer Part Number 2249100000

Customer Reviews

Based on 1 review
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The Fender 100T / Fender 410 neo cab in the trences

I purchased the new Fender Bassman 100T with a 410 neo cab about a month ago, but didn't want to post a review until I had used it in a gigging situation. I had sone worries about "only" 100 watts and "only" one 410 cab in a gig with no mains help. Doesn't matter what a rig sounds like sitting at home practicing or in rehearsal, it's what it does on the battfield that counts. The bar I played was around 5000 sq. ft. - about 60'x85' with the band toward one side facing longways down the room. The stage area isn't elevated. Nothing but vocals through the mains except a touch of kick drum. There was anywhere from 75 to 100+ people there at any one time, which is a factor. This size bar with 20 people in it you could play without a sweat with 100 watts. But the more people there are the more the guitarist has to crank and vocals have to come up, especially if you're not elevated and you're blowing right into people. This was the new band's first gig. We're 3 piece for now, a classic-rock deal with stuff ranging from Police to Dwight Yoakum to Led Zeppelin. Guitar player plays Telecasters through a '72 100 watt Twin. We're seasoned players so we don't try to blow people's heads off, but the drummer is very powerful so it's definitely not meek. The basses I used were a passive G&L L-1000 with GHS Bright Flats, and a passive Jack Casady Epiphone with roundwounds. Finally regarding my style and what I needed from a rig, I think the biggest compliment someone could pay my playing would be to call it bombastic. I didn't get the nickname Freight Train by hiding behind the drums. I currently use no pedals or fx other than the 100T's overdrive occasionally. I've always molded by bands around bass and drums carrying the load, and everything else playing as sparse and with many holes as possible. I don't do any slapping/tapping stuff currently except for two sections on one song, So upfront grunt and punch is what I need. The last rig I had was dual Hartke 410XL's with a GK 800RB. The Bassman 100T with a single 410 neo had so much more punch, headroom and clarity than that rig it's not even worth talking about. Having played amplified bass since around 1965/66, I've never had a rig sound like this. It gives you the impression of unlimited headroom. I play sort of stream of consciousness, so I'm prone to whank on it with a thump or chord punch at any time, and I couldn't believe how the rig barks it right out with total authority. I had switched to the Epiphone/roundwounds on a few songs the first set, which I used on the active channel and was able to use the overdrive pretty heavy on one song, and it sounds great. But the G&L in single coil position through the vintage channel was such magic I settled in on that and had no desire to change anything except switching to single coil w/bass boost position a couple of times. For a gig this size, both channel volumes were on 6, and I started with the master on 5 and was on 6 by the end of the evening. I found the 410 neo delivers what I want with almost no EQ. I had the tweeter level set at 11:00. The vintage channel with the G&L/flatwounds was basically flat (passive tone stack). The active channel with the Epiphone/roundwoulds I boosted bass just slightly, mid just slightly probably around 2k, and rolled high's off a touch, and that was it. On the overdrive songs I had overdrive on 8 and blend on 5, and the overdrive is sweet, crunchy and punchy. It's a lot more musical than what I've heard in most any pedal I've ever tried. We are actually a very dynamic band, and on songs where I use a light touch the 410 neo delivers everything clear, focused and present - it doesn't disappear when you go to a light touch like some cabs will. Overall I had a lot of compliments on my sound during the night, embarrassingly so eventually, and had a few people tell me at our loudest they were feeling the bottom in their chest when I punched, even at the back of the room. The 100T didn't seem to stress over all this in the least. It really didn't seem to get much hotter than it does at rehearsal in the drummer's living room. I didn't look but I'm sure the fan came on, but after 3 sets it was no hotter than you'd expect a tube amp to be. I never got anything close to speaker breakup. The chord punches I would do gave the impression of clean, but it had that tube grease on it so it wasn't abrasive or piercing, and again they were crazy dynamic. I don't know how much louder the rig could have gone - it gives the impression it can give all you can take. But I seriously don't see much need to ever play much louder than I had it since at any place much larger I'd usually have mains help. What I'm really interested in next time we play this place or similar is seeing what happens in 25 watt mode. Should be some interesting power tube grind if it doesn't just suddenly jump into distortion. Anyway, blah blah woof woof, this is a fantastic rig and the only reason I can think of me personally wanting one of the larger cabs or stacked 410's is for the look onstage, and I got over that 20 years ago. Plus what looks better than the 100T/410 neo? The gig was a rousing success btw, with the bar owner clamoring to lock us in for New Years Eve at a 'tell me what it'll cost' kind of thing. Gotta give Fender some props for that.
Music background: Bass player since 1965. Audio engineer since 1974. Mastering engineer since 1990.
See also: Bass Amp Heads, Fender, Fender Bass Guitar Amp Heads