Hartke HA3500A 350-Watt Bass Amp Head

The Rugged, Roadworthy Hartke 3500A Bass Head Amplifier - Found On Stages All Over The World

The Hartke 3500A features all the same rock-solid performance and features as the original HA3500 released back in 1990, with 350 watts of clean Hartke power and punch. The 3500A includes selectable passive or active input, tube, and solid-state preamps, and variable compression. The 10-band graphic EQ allows you to create a broad range of tonal colors and a dedicated in/out button even lets you preset an equalization curve. Two fully adjustable contour knobs (high pass and low pass) also provide further control over shaping your bass sound.

An electronically balanced direct output provides a means of routing signal to professional mixing consoles in both live performance and recording environments. A ground lift switch also helps prevent hum or buzz from entering the signal and a pre/post switch allows the direct signal to be derived either before or after the amp EQ section. For enhanced reliability, the 3500A features protection relay circuitry that protects connected speakers from dangerous overloading and even prevents "thumps" when powering on or off. 

• Power: 350 watts at 4 ohms, 250 watts at 8 ohms
• Updated front panel, double-height wooden cabinet
• Selectable Tube & Solid-State Preamps
• Active and Passive Inputs
• Rotary Bass & Treble Contour Controls
• 10-Band Graphic EQ
• Balanced XLR Direct Output

We are Chuck Levin's Washington Music Center

Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.