Powered Sub-Woofer

CIRCLE 1

The Circle 1 active sub-woofer is the perfect loudspeaker to complement the Circle 5 and Circle 3 in surround sound applications. Faithfully reproducing all the low frequency effects found in films and music, the HHB Circle 1 greatly improves the bandwidth of loudspeaker systems. With its built-in active crossover, any combination of up to five full-range loudspeakers, depending on the application, may be connected to the Circle 1, allowing its on-board filters to remove extreme low frequency content from the other signals, preventing their overload whilst attempting to reproduce these high energy frequencies. With this arrangement, no additional filtering is needed. Dedicated sub-woofer signals may be sent directly from a mixing console or multitrack recorder to the Circle 1 (5.1 mode), or the internal circuitry can extract the low frequency information from the left, centre and right input signals (B mode). In C mode, low frequency information is filtered from the left, centre and right input signals and added to the sub-woofer signal, ensuring optimum low frequency performance. The Circle 1’s paper pulp 12" LF driver is mounted at the top of the cabinet, displacing air out of the acoustically optimised front port.

CIRCLE 1

KEY FEATURES

•Designed for use as an integral part of any surround sound monitoring system

•Increases the bandwidth of a loudspeaker system down to 33Hz

•Exceptionally low colouration and distortion

•300mm (12") paper pulp bass/mid driver

•Low moving mass for fine transient response characteristics

•Air-cooled magnet system

•Very large voice coil and long throw suspension

•Flexible configuration possibilities, with direct input of sub-woofer signal (5.1 mode) or low frequency information extracted from the left, centre and right signal paths and fed internally (B mode) or summed (C mode) to the sub-woofer input within the Circle 1

•Balanced XLR and unbalanced RCA phono sub-woofer input

•Built-in 5-channel Sallen and Key active filters remove the need for external filtering

•Low noise, low distortion power supply with long life smoothing capacitors

•Variable phase control allows blending with existing speaker / room combinations

•Variable bass boost control achieves optimum bass balance across a range of differing listening levels (lower listening levels require bass boost according to psychoacoustic theory)

•Input sensitivity control allows matching of sound balance across the whole surround monitor system

•Built-in temperature overload sensor

•Rigid, ported cabinet, finished in durable black paint

•Distinctive purple grille

CIRCLE STUDIO MONITORS specifications

HHB CIRCLE Studio Monitors have emerged as a notable choice for audio professionals, combining innovative technology with exceptional sound fidelity. Designed with the modern studio environment in mind, these monitors deliver remarkable clarity, precision, and accurate sound reproduction, making them an essential tool for music producers, sound engineers, and audiophiles.

One of the standout features of the HHB CIRCLE Studio Monitors is their advanced coaxial driver technology. This design integrates the woofer and tweeter into a single unit, ensuring that the sound waves from both elements arrive at the listener’s ear simultaneously. This results in a more coherent and focused soundstage, allowing for accurate imaging and enhanced stereo depth. Musicians can mix tracks with confidence, knowing they are hearing an authentic representation of their sound.

Another key aspect of the HHB CIRCLE monitors is their robust and well-constructed cabinets. Made from high-quality materials, these cabinets are designed to minimize resonance and distortion, providing a cleaner signal path. The monitors have been perfected to ensure that low-frequency response is both extended and controlled, giving producers the ability to hear the full range of their tracks without overpowering bass or muddiness.

The HHB CIRCLE monitors also feature adjustable room compensation controls, which allow users to fine-tune the response based on their studio environment. This adaptability is essential for ensuring that sound is accurately represented in a variety of room acoustics, whether in a professional studio or a small home setup.

In terms of connectivity, the monitors are equipped with balanced XLR and TRS inputs, ensuring compatibility with a wide range of audio interfaces and equipment. This versatility makes it easy for users to integrate the CIRCLE monitors into their existing setups without the need for additional adapters.

Furthermore, the design of the HHB CIRCLE Studio Monitors is both sleek and modern, making them visually appealing in any studio space. Their compact size means they can fit easily on desktop setups or in smaller studios without sacrificing sound quality.

In conclusion, the HHB CIRCLE Studio Monitors are a perfect fusion of advanced technology and user-friendly features. With their coaxial driver design, durable cabinets, adjustable settings for room acoustics, and versatile connectivity options, these monitors are ideal for anyone looking to elevate their audio production quality. Whether you’re mixing, mastering, or simply enjoying music, the HHB CIRCLE monitors promise to deliver an unparalleled listening experience.