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Avantone Pro CLA-400 Studio Reference Amplifier

BH #AVCLA400 • MFR #CLA400
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Avantone Pro CLA-400 Studio Reference Amplifier
Key Features
  • Designed for Medium to Large Monitors
  • 360W into 8 Ohms / Class AB Amplifier
  • High-Quality Components
  • Toroidal Transformer Linear Power Supply
Looking for a professional amplifier capable of powering medium to large studio monitors? Check out the Avantone Pro CLA-400 Studio Reference Amplifier, a dynamic, high-output, high-resolution full-range amplification system. Built in the "old school" way, the no-compromise design features high-quality Japanese components, generous VU meters, and a serious toroidal transformer linear power supply. The convection-cooled chassis provides fanless, silent operation, allowing the amplifier to be used in the same room as the monitors.
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Avantone Pro CLA-400 Overview

Looking for a professional amplifier capable of powering medium to large studio monitors? Check out the Avantone Pro CLA-400 Studio Reference Amplifier, a dynamic, high-output, high-resolution full-range amplification system. Built in the "old school" way, the no-compromise design features high-quality Japanese components, generous VU meters, and a serious toroidal transformer linear power supply. The convection-cooled chassis provides fanless, silent operation, allowing the amplifier to be used in the same room as the monitors.

The CLA-400 boasts a frequency response of 20 Hz to 20 kHz (±0.5 dB) with a power output of 360W at 8 ohms and 540W at 4 ohms per channel. The amplifier can also be used in bridged mode, providing 760W into 8 ohms. The rear panel features two XLR inputs, two XLR link outputs, two speakON connectors, and two sets of terminal block connectors. Both the terminal block and speakON connectors feature bridge configurations for flexibility in deployment. The Avantone Pro CLA-400 produces very-low distortion, steady performance under harsh conditions, and a transparent sound, making it well suited for discerning studios.

At a Glance
  • XLR inputs with Link Output per channel
  • Analog VU metering
  • Monolithic amounts of reference-grade power
  • Convection-cooled design for silent operation
  • Frequency Response: 20 Hz to 20 kHz (±0.5 dB)
  • Class AB amplifier
  • Large toroidal transformer linear power supply
  • Convection cooled for silent operation (no fans)
  • Low noise
  • Steady performance
  • Open transparent sound
Output Power
  • Stereo power: 360W at 8 ohms
  • Stereo power: 540W at 4 ohms
  • Bridge power: 760W bridged into 8 ohms
UPC: 753459951316

Avantone Pro CLA-400 Specs

Key Specs
Number of Channels
2
Amplifier Power Rating
4 Ohms:
540 W per Channel (1 kHz)
8 Ohms:
360 W per Channel (1 kHz)
760 W Bridged (1 kHz)
Amplifier Class
Class-AB
Analog Audio I/O
2x XLR 3-Pin Female Balanced Line Input
2x XLR 3-Pin Male Balanced Line Thru
2x speakON NL4 Speaker Output
2x Binding Post Pair 2-Pin Speaker Output
Digital I/O
No
Network I/O
No
Rackmount Size
3 U
Amplifier
Number of Channels
2
Amplifier Power Rating
4 Ohms:
540 W per Channel (1 kHz)
8 Ohms:
360 W per Channel (1 kHz)
760 W Bridged (1 kHz)
Amplifier Class
Class-AB
Performance
Protections
No
Frequency Response
20 Hz to 20 kHz ±0.5 dB
Damping Factor
250 at 8 Ohms
Input Sensitivity
0.775 V / 0 dBu
Input Impedance
20 Kilohms (Balanced)
10 Kilohms (Unbalanced)
SNR
> 103 dB
THD
< 0.1%
Intermodulation Distortion
< 0.1%
Crosstalk
-70 dB
Slew Rate
28 V/μs
Connectivity
Analog Audio I/O
2x XLR 3-Pin Female Balanced Line Input
2x XLR 3-Pin Male Balanced Line Thru
2x speakON NL4 Speaker Output
2x Binding Post Pair 2-Pin Speaker Output
Digital I/O
No
Network I/O
No
USB I/O
No
Mobile App Compatible
No
Wireless
No
Power
AC Input Power
User Selectable:
115 to 230 VAC, 50 / 60 Hz
AC Power Connector
1x IEC 15 A / NEMA 5-15
Physical
Rackmount Size
3 U
Cooling
Convection
Dimensions
19.0 x 18.0 x 5.2" / 482.6 x 457.2 x 132.1 mm
Weight
49 lb / 22.2 kg
Packaging Info
Package Weight
54 lb
Box Dimensions (LxWxH)
23.63 x 9.5 x 9.38"

Avantone Pro CLA-400 Reviews

Astounding life breathing music!

By ERIC
Rated 5 out of 5
Date: 2022-07-16

I was looking for a capable pro audio power amp for my Dali Euphonia MS5's when Avantone announced the release of their CLA-400. I will admit, MS5's are really audiophile grade speakers, so why drive them with a pro audio amp? My response is, why not? Most of the offerings in the pro audio market are active/fan cooled, very few if any convection cooled. And if there are any like QSC & Crown, they no longer make them. I did not want fan/active cooling. Furthermore, most are class D and I had already tried class D; not impressed despite all the gobs of power. No, not for me; NO class D! The Avantone Pro CLA-400 came at just the right time and I placed an order soon as I was convinced it was the amp to try. With this CLA-400, over 500 watts @ 4 ohms has really revealed what I knew my speakers were capable of! It's rather astounding how much more life they are breathing into the music! Solid tuneful and impactful bass, very wide and deep soundstage, very musical! There's no turning back for me; I am rather gobsmacked at the sheer musicality of my sound system. WOW! Just WOW!

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