Leslie Model 3300 300-watt 15" Combo with 2-Speed Rotary Horn - Black

300W Solid-state Single-channel Keyboard Amplifier with Tube Preamp, 2-speed Rotating Horn, 15" Rotating Woofer - Black
Leslie Model 3300 300-watt 15
Leslie Model 3300 300-watt 15
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Leslie Model 3300 300-watt 15" Combo with 2-Speed Rotary Horn - Black
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Take That Classic Rotating Speaker Sound on the Road!

The Leslie 3300 provides that legendary rotating speaker sound in a single-channel, easy-to-transport package that's designed to take the rigors of live touring. The 3300 includes a 2-speed horn rotor with a ferro-fluid driver, plus a bass rotor with a 15" woofer, powered by a 300-watt solid-state amp with a real tube preamp. You can connect this amp to most current electronic organs and keyboards for classic, room-filling sound and an unmistakable Leslie vibe. The sturdy cabinet and heavy-duty casters make the Leslie 3300 a real road warrior!

Leslie 3300 Features:
  • Single channel
  • 2-speed horn and bass rotors
  • Adjustable slow and fast speeds, rise and fall time, and brake time
  • 220W RMS solid-state bass amp; 80W RMS solid-state treble amp
  • Tube preamp
  • Ferro-fluid driver
  • 15" woofer
  • Can be connected to most electronic organs and keyboards
  • Master volume, bass, midrange, treble, horn level, and subwoofer level controls
  • Rugged cabinet
  • Heavy-duty casters
  • 11-pin and 8-pin Leslie connector
  • 1/4" line input jack, 1/4" footswitch jack
  • 1/4" line output jack for optional subwoofer use
The Leslie 3300 Amplifier with rotating speakers lets you take a classic sound on the road!

Additional Media

3300 User Manual
Keyboard Amp Buying Guide
Rebate-o-rama, the Final Chapter
New in Stock at Sweetwater

Tech Specs

Speaker Size 1 x 15"
Total Power 300W
Inputs 1 x 1/4", 1 x 11-pin Leslie Connector, 1 x 8-pin Leslie Connector
Outputs 1 x 1/4"
Frequency Range 20Hz-20kHz
Enclosure Material MDF
Mounting Options Floor
Height 35.25"
Width 25"
Depth 20.5"
Weight 125 lbs.
Manufacturer Part Number LS-3300

Customer Reviews

Based on 10 reviews
Write your review

Sounds great light weight and lots of power

Hooked up to my xk3c and midi up to roland 300nx and then mic up leslie to sound system and you got one fat sounding rig
Music background: Recording eng ,live sound pro musician

Leslie 3300

I just got the Leslie 3300 and I was so amazed and shocked at the power this baby has. I really recommend this Leslie 3300 to anyone who want's to take it on the road with the wheels its really easy. This baby is built tough and looks pretty awesome at the same time. I am planning on getting a 2nd Leslie 3300 to connect them together and then I will get 2 Bass Sub Woofers one for each leslie to sit on top of the Leslie about 1500 Watts each. If you like BASS you will need a SUB which the 3300 Provides you with a 1/4 jack for Sub Woofer Line Out. Amazing Amazing Amazing, Best Piece of Gear I have ever Owned. It turned my Hammond B 3 VST thru MainStage in Logic Studio by Apple into a real B3 sound. Everyone I have let listen to it says they cannot believe its not a Real B 3 I am playing. I just turned off the Cabinet to the OFF Position and it kicks in and lets the Leslie do its own thing. I am shocked beyond shocked at how Perfect the sound quality is. I was so amazed that I called the sales guy at Sweetwater and had him listen to it and he even said it sounds like a real b 3. Sweetwater is Awesome they really work with you to get you what you need. 10 Stars hands down. I am now a SWEETWATER FAN. Thanks, Hammond B3/Leslie 3300 Boi
Music background: Pro Musician

Baby C

Make my Organ and Rhodes sound perfect
Music background: Arranger Producer


Just picked up my new 3300 leslie and hooked it up to my xk3c, although with the 1/4" jack. Just couldn't wait for the expression pedal and 11 pin connector which are due shortly. I live in an apartment building but could not resist turning the vol up for a whiter shade of pale test run. even without fast speed, the sound was amazing. one neighbour knocked on my door and demanded to see what I had. Should have seen his jaw drop when he saw the combo. I invited him and some other neighbours over when the expression and cable get here. I know that I will find a daily window where I can let 'er rip without complaints. I am a newbie to the keyboards but have several friends who give lessons and tips
Music background: just a sax player learning keys


I have been using a Motion Sound for years and loved it, but there is NO comparison. This .....sounds awesome. All the beautiful range of growls, screams and purrs of the old B3's come pouring out of my hammond XK3. How did I play without this. I illuminated the horns and lower drum so the audience can see what they are hearing and they love it. i see pople pointing and mouthing.."See.. he has a real Leslie!" Thanks SweetRay
Music background: Blues musician
See also: Keyboard Amps, Leslie, Leslie Keyboard Amplifiers