ANTELOPE AUDIO ATLAS I8 | 3-way Isobaric Active Monitor

Atlas i8

3-WAY ISOBARIC ACTIVE MONITOR

The Atlas i8 is a high-end studio monitor that synergizes Antelope Audio’s state-of-the-art clock and interface technologies with meticulous acoustical engineering to deliver unparalleled sound accuracy in any studio environment. Featuring an isobaric configuration with two 8-inch woofers, a coaxial mid and high-frequency driver, and a custom Class-D 400W amplifier, the Atlas i8 delivers precise audio reproduction between 35 and 20 000 Hz with a maximum SPL of 117dB. A custom digital processing system with FPGA chips enhances the performance, achieving a neutral frequency response and linear phase. The result is an accurate, pinpoint sound and a fatigue-free listening experience.The DSP also unlocks a handful of features that improve everyday studio life.

Isobaric

The Atlas i8 has two identical 8-inch woofers that are sealed in an isobaric configuration, one behind the other and moving together in sync. The air pressure caused by the first one is compensated by the movement of the second one, creating a sealed volume with an even pressure level. Usually, to get lower frequencies, one would need a bigger volume in the cabinet. Using this isobaric design allows a drastic reduction in cabinet volume without sacrificing low-end performance. The monitor can get as low as 35Hz without any boosts, ensuring minimal distortion and high sound pressure levels.

Calibration with FIR and IIR filters

To achieve flat and time-aligned frequency response a proprietary digital processing system has been developed to run inside FPGA chips with FIR and IIR filters, thus providing a deep and focused stereo image, precise transients and fatigue-free studio sessions. The Atlas i8 is calibrated during the manufacturing process and tested thoroughly to deliver optimal performance. The DSP enables a range of features, including configurations allowing the Atlas i8 to reach lower frequencies or apply a low-cut so the speaker works in a 2-way mode.

Antelope’s digital precision

Fundamental Antelope Audio technologies are integrated into the Atlas i8 studio monitor. Top quality AD/DA converters and proprietary 64-bit Acoustically Focused Clocking technology all run internally on a 192 kHz sample rate to ensure that no audio quality will be lost during conversion.

One-point source for the Mids and Highs

A coaxial design with mid frequency driver and a tweeter working together as a single point source deliver improved phase coherence and allow Atlas i8 to be positioned horizontally or vertically without any risk of comb filtering or dips across the upper-frequency spectrum.

Workflow enhancing features

The in-house developed digital signal processing system introduces a range of features that greatly enhance the studio experience. In addition to the analog XLR/TRS input, there is an AES digital in and out, enabling the possibility of daisy chaining two Atlas i8 speakers. Moreover, the digital connection bypasses interface conversions, effectively reducing unwanted artifacts. The color display on the back of the Atlas i8 grants effortless access to various settings, including dim, mute, volume control, preset saving, EQ adjustments, and multiple speaker modes tailored to different work scenarios. To further enhance the stereo image and sound balance, delay offset settings allow to compensate for distance differences between the sweet spot of two or more monitors if necessary. Additionally, a user-friendly software control panel* ensures easy access to all settings, keeping the user in the ideal listening position in front of the computer.

Meticulous cabinet design

The hand-assembled cabinet is 18mm (about 0.71 in) thick, providing a sturdy, vibration-free construction. To reduce resonance frequencies, extra ribs have been added at key positions inside the box. Its volume and bass reflex port have been calculated to perfectly match the characteristics and needs of the two 8-inch woofers in order to achieve optimal frequency and phase response. The front positioning of the bass reflex eliminates any limitations associated with close proximity to walls and corners. For those seeking versatile placement options, an optional mounting plate facilitates wall/ceiling installation, ideal for surround and Atmos setups. A minimalistic visual approach with stylish black and vintage green colors adds the final touches to the Atlas i8 design.

Features 

• Isobaric design (2x8" woofers) 
• Digital calibration with FIR and IIR filters 
• Linear phase frequency response 
• Custom class-D amplifier 
• 64-bit Acoustically Focused Clocking 
• High-quality AD/DA converters 
• Coaxial driver for mid & high frequencies 
• Color display with advanced settings menu 
• Parametric EQ 
• Delay offset 
• Preset management 
• 18mm cabinet with extra reinforcement 
• Optional mounting plate 
• Vertical and horizontal positioning 
• Hand-built in EU

Technical specifications 

• Frequency range: 35 - 20 000 Hz 
• Max SPL: 117dB at 1 m 
• Amp wattage: 400W (200W low + 100W mid + 100W high) 
• Input connectors: Analog XLR/TRS; Digital AES/EBU 
• Output connectors: Digital AES/EBU 
• Driver sizes: LF: 2x8" isobaric, MF: 5,5", HF: 1,5" coaxial 
• Speaker configuration: Three-way 
• Active or passive: Active 
• AD/DA converter: 24-bit/ 192 kHz 
• Equalization: Digital parametric 
• Enclosure Type: Front ported 
• Monitor application: Near-field / Mid-field 
• Weight: 24 kg (52.9 lbs)
• Dimensions: W: 29 cm (11.4 in); D: 38.7 cm (15.2 in); H: 50 cm (19.7 in)

In-the-box Content 

• Atlas i8
• Getting started guide/Guide to online User Manual 
• Power supply cable 
• USB Cable