18-Payments with 0% Interest on select Live Sound brands!

Avantone Pro CLA400 540 Watt Stereo Power Amp

Item
AVNCLA400

h m s

free-shipping-icon
In Stock!Order now!
Remove one item Add one item

Compare

Compare! Here are all the serial numbers of this model we have in stock. Compare them all and select your favorite!

    Rock Now Pay LaterRock Now Pay Later

    Get the gear you want when you want it!

    With AMS 0% interest Payment Plans, you use your own credit or debit card, and we will never charge you any interest! We will split your order total equally across the plan that you have chosen. 

    Your credit card will be charged every 31 days, automatically. It’s that easy!  Some plans require a credit check.

    Free Shipping - No Extra Charge!

    Our 4 state-of-the-art, strategically located warehouses are highly efficient and allow us to ship your gear in record time - and most orders will arrive at your door within 2 days for free. Shortly after you place your order, a Ship Confirmation email will arrive letting you know the order was picked, packed, and put on a truck. Full Details


    Shipping Map

    Free Extended WarrantyFree Extended Warranty

    12 Months EXTRA for Free!

    Many of our competitors charge 10% or more for an additional 12 months of warranty on the products they sell. AMS offers this exclusive benefit to our valued customers at no extra charge. Thousands of items on our site and in our catalog carry the "Gold Lock Extended Warranty" icon. It means you get the manufacturer's full warranty plus 12 additional months, FREE!!!

    45 Day Money Back Guarantee45 Day Money Back Guarantee

    Our 45 day return policy allows you to buy with confidence at AMS! If you are not completely satisfied with any item* purchased from AMS, return it to us within 45 days of the shipping date, and we will refund your money or help you with an exchange. That's always been our policy, and now we've added the ease of Electronic Return Labels!

    Canadian Shipping Information

    Welcome Canadian musicians! Buying your gear from AMS is as easy as going to a local music store, with more selection and more than competitive prices!

    Items with this logo are eligible to ship to Canada. Please note that you will be responsible for payment of brokerage fees, duties and other import taxes applicable to your order.

    NOTE: Free shipping offers do not apply to Canadian orders. Please be aware of custom fees - such as taxes and duties - when your order arrives. Since these fees vary from location to location, CUSTOMS FEES ARE NOT INCLUDED IN SHIPPING CHARGES. Please check with your local customs office for more information on the fees in your areas. Refusal to pay these fees will result in an undeliverable order. If returned, we do not refund shipping charges and may assess restocking fees to cover return shipping expenses.

    Non Factory Sealed Items

    Non Factory Sealed are items that have been opened but are in perfect physical condition such as customer returns, open box for product photos/videos, demo stock, etc. They have been carefully inspected and repacked by qualified AMS employees to help ensure your satisfaction, allowing you to get great gear at a discounted price. They include all components, manuals and the full Manufacturer's warranty unless otherwise stated, along with the AMS 45-day Money-Back Guarantee. Special offers, promotions and rebates may not apply. The following manufacturers do not offer a warranty on Non-Factory Sealed items: Casio, Ampeg, Avalon, Chauvet, Electro-Voice, Ibanez, Mackie, Martin, Peavey

    Minor Blemished Product

    Minor Blemished Products are items that have been returned in excellent condition with very minor cosmetic blemishes, allowing you to get great gear at a discounted price. In fact, many times our customers have difficulty finding the minor blemishes at all! These products are 100% inspected and tested to guarantee functionality. They include all components, manuals and the full Manufacturer's warranty unless otherwise stated, along with the AMS 45-Day Money-Back Guarantee to ensure your satisfaction. Special offers, promotions and rebates may not apply. The following manufacturers do not offer a warranty on Minor Blemished products: Casio, Ampeg, Avalon, Chauvet, Electro-Voice, Epiphone, Gibson, Ibanez, Kramer, Mackie, Maestro, Mesa, Peavey, PreSonus, Steinberger, Tobias

    AMS AgentAMS Agent

    Have questions, found a better price?
    Talk to a sales specialist!

    800-319-9043

    The Avantone Pro CLA-400 Studio Reference Amplifier is a dynamic, high output, high resolution, full-range system built the old school way; a classically designed Class A/B amplifier.


    Avantone took particular care to create an amplifier in the traditional studio style, with generous VU meters, high quality Japanese components and a serious toroidal transformer linear power supply. The CLA-400 implements a classic bipolar transistor design for robust bottom end.


    Avantone Pro CLA400 540 Watt Stereo Power Amp Features:

    • Class A/B power amps that feature classic analog sound
    • A perfect companion for passive speakers old or new
    • Great compliment to an existing hi-fi system as well
    • No onboard DSP to artificially color the sound
    • Analog signal path that most accurately represents the original signal source.
    • Large VU Meters for visual monitoring
    • No onboard fans to add to ambient room noise
    • 3 modes of operation; stereo, bridge or parallel

    800 watts of reference-grade power.

    The Avantone Pro CLA-400 Studio Reference Amplifier is a dynamic, high output, high resolution, full-range system built the old school way; a classically designed Class A/B amplifier. We took particular care to create an amplifier in the traditional studio style, with generous VU meters, high quality Japanese components and a serious toroidal transformer linear power supply. The CLA-400 implements a classic bipolar transistor design for robust bottom end.


    In a standard 3U rack mount chassis, this amplifier can generate over 360 watts per channel into an 8 ohm load, making it perfect for medium to large speakers in a studio environment. The CLA-400 not only uses no-compromise components, but is also convection cooled – no fan noise, so it can be used in the same room as the monitors.


    The CLA-400 was designed to be paired with large passive monitors that demand the highest amounts of power. Very low distortion, steady performance under harsh conditions, and an open and transparent sound make this an obvious choice for discerning studios requiring serious dynamic range.


    Zero fan noise.

    The CLA-400 Studio Reference Amplifier is designed to be used in a studio environment requiring high power output with no fan noise. Under testing, it delivers a powerful 400 watts into 8 ohms and can run at one third power without thermal fault. The CLA-400 has zero fan noise, as it’s convection cooled — which makes it perfectly suited for control room installation.

    CALIFORNIA PROPOSITION 65 WARNING

    WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

    Shop Similar Models

    Avantone Pro CLA400 540 Watt Stereo Power Amp Specifications

    Avantone Pro CLA400 540 Watt Stereo Power Amp Specifications
    Product SpecificationsAvantone Pro CLA400 540 Watt Stereo Power Amp Specifications
    • 8Ω Stereo Power (1KHz): 360W
    • 4Ω Stereo Power (1KHz): 540W
    • 8Ω Bridge Power (1KHz): 760W
    • Slew rate (at 1KHz): 28V/us
    • Input Sensitivity (1KHz): 0.775V (0dBU)
    • Total Harmonic Distortion (1KHz): <0.1%
    • Intermodulation distortion (at 10% rated power 1KHz): <0.1%
    • Crosstalk: -70dB
    • Frequency Response: 20Hz-20kHz +/-0.5dB
    • Input Impedance: (Balanced) 20KΩ (Unbalanced) 10kΩ
    • Damping Factor(100Hz, 8Ω): 250
    • Signal to Noise Ratio (A Weighted): >103dB
    • Amplifier: Class AB
    • Dimensions: 483Wx133Hx487D (19”x5.25”x18”)
    • Weight: 22.2kg (49lb)
    Copyright © 1996-2025 American Musical Supply, Inc. All rights reserved