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Quilter Labs Bass Block 800 800W Bass Amp Head

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Built specifically for the bass guitar, the Bass Block 800 represents the culmination of years of research and development. Unlike many of today's co...Click To Read More About This Product

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See All Quilter Labs Solid State Bass Amplifier Heads

Massive bass thunder from a head you can toss in a backpack.

Built specifically for the bass guitar, the Bass Block 800 represents the culmination of years of research and development. Unlike many of today's compact bass amps, the Bass Block 800 is not simply an existing consumer-grade power module married to a pre-amp, but a comprehensive power system that responds dynamically and musically to the player’s instrument and touch.

Ultra-Light, Ultra-Strong
The Bass Block is so light you might forget you are carrying it to the gig! Using an ultralight aluminum chassis, internal fan-cooled heat sink, and ferreting out every ounce possible, the Bass Block manages to pack 800 watts into a sturdy and insanely lightweight 4-lb. package.

Real-World Power at Any Voltage
Using high power technology developed for world-class pro audio touring, the Bass Block 800 delivers effortless reserves of power to maintain tight control of the speaker without clipping or bottoming out. The universal-voltage power supply delivers smooth and powerful response regardless of “club voltage” surges. The amp works on any voltage, anywhere. Plug it in, turn it up, enjoy the effortless beauty of the tone!

The Most Musical Bass Head Ever
Pat Quilter’s first amp was built in 1967 for his brother’s bass player, and great bass tone remains a key passion. The modern bass is a full-range instrument, with much different dynamic requirements than electric guitar. Low frequencies require more horsepower to move air, and the instrument demands percussive response without bottoming out or obtrusive limiting.

The Bass Block provides 800 “real watts” to build on, and the preamp is optimized to make the best use of that power, providing more effective headroom with less stress on the speakers. Unique bass-specific EQ controls allow the bassist to quickly dial in a wide range of tones to match any instrument, and a special 2-stage limiter prevents bottoming out without suppressing dynamic response and feel. A Master control allows the peak power point to be adjusted to safely power any size of speaker, from giant stacks down to compact studio units. A prolonged field testing program has confirmed that every component in the Bass Block 800 is focused on creating the ultimate musical instrument for bass players. You will feel it every moment of every gig. Effortless, powerful, and exacting tone at your fingertips.

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  • Power: 800W (4 ohms); 450W (8 ohms); 225W (16 ohms)
  • Single channel
  • Two inputs: active, passive
  • Impedance: 4, 8, 16 ohms
  • Controls: gain, depth, contour, master, mute button
  • Ouputs: Speakon, 1/4 in. 
  • XLR input
  • XLR output
  • Headphone output
  • Includes deluxe carrying case
  • Dimensions: 8.5 x 7.5 x 3 in. (218 x 190 x 76 mm)
  • Weight: 3.7 lb. (2kg)
  • Includes fitted cover

Review Snapshot

by PowerReviews
QuilterBass Block 800 800W Bass Amp Head

(based on 2 reviews)

Ratings Distribution

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Reviewed by 2 customers

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Be careful, 800watts means 800watts.

By Yam

from Ojai, CA

About Me Experienced


  • Easy To Use
  • Excellent Sound
  • Good Warmth
  • Portable
  • Powerful


    Best Uses

    • Events
    • Making really loud noises with a bass as needed.
    • Performances
    • Professional Recording

    Comments about Quilter Bass Block 800 800W Bass Amp Head:

    I wanted a simple, lightweight, powerful amp that would let the sound of my beautiful bass to come through. What I got was a simple, lightweight, powerful amp that let the sound of my beautiful bass come through. What I didn't count on was the truth when it was advertised as 800watts. Allow me to step back and explain. I had a 500watt 4ohm cab that I was driving with an underpowered amp. When I attached the Bass Block to it I foolishly assumed 800watts really meant 400watts. I was wrong! 3 songs into a live performance my speaker "blowed up real good". I am now dragging around my 8x10 cab, instead of my nifty portable cab. Oh yeah, almost forgot. THIS AMP SOUNDS AMAZING. sorry for yelling; but, this amp sounds amazing.


    Bang for the buck

    By Country bass player

    from Dallas, Tx

    About Me Professional Musician

    Verified Buyer


    • Easy To Use
    • Good Warmth
    • Powerful


      Best Uses

      • Performances

      Comments about Quilter Bass Block 800 800W Bass Amp Head:

      I play country music in Dallas. I use a 5-string Musicman Stingray. The Quilter bass block is very clear and easy to use on any number of cabinets and has a clean direct out. Buy with confidence.

      Service and delivery comments:

      Quick delivery, on-time.

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