Grimm Audio LS1a Two-Way Active Monitoring System (Pair, White Lacquer)

Styled in white lacquer, the LS1a from Grimm Audio is an active all-in-one stereo speaker system designed to combine the best aspects of a high-fidelity system with the accuracy of top-tier studio monitors for demanding musicians, engineers, producers, and audiophiles. Part of the LS1 family, the LS1a is the most moderately priced option; it does not included the LS1USB interface and scales back on a few of the most advanced features in favor of a non-magnesium woofer, a lighter foot plate, and a lacquered cabinet. It is also constructed without some of the labor intensive modifications and individual acoustic calibrations made on the LS1v2 and LS1be models.

Note:

The LS1a is available with legs in brown or black and at standard couch height (45") or a higher studio chair height (56"). Please call us when ordering to specify your preferences.

Analytically Precise and Musically Pleasing

Why choose between having accurate, professional-quality monitoring or having a high-fidelity system for audiophile listening when the LS1 series has been specifically designed to deliver both? The speaker incorporates top-quality DSP, converters, and amplifiers to completely control all the critical aspects of audio reproduction and ensure pure, ultra-accurate sound.

Accurate High-Fidelity Monitor Speakers

The LS1a possesses all these essential qualities and therefore performs at a true reference level in all key areas for artists and music lovers alike. The speaker retains the low distortion and extremely linear amplitude and phase response the LS1 series is renowned for (achieved through Computer Aided Calibration during production). In addition, the form factor makes positioning close to a wall possible without wall-reflection interference. The speaker features a DSP-controlled frequency curve and is unidirectional down to 250 Hz with a well-behaved off-axis response.

The Acoustics

The flat, wide cabinet design lowers the baffle step frequency, allowing sound below the 250 Hz range to be radiated in all directions equally, while higher frequencies, where phase problems are more perceptible, are more forward focused. The rounded legs also help to reduce the deterioration of the stereo image, while the shallow cabinet moves the resonance along the depth axis inside the box, significantly above the crossover frequency of the 8" low-frequency driver, helping to avoid boxiness. The 1" Seas tweeter™s exceptionally low distortion in the midrange allows a fairly low crossover frequency that benefits vertical dispersion. Its small constant-directivity horn ensures an even spread of high-frequency sound.

The Electronics

Digital input signals are re-clocked by a state-of-the-art ASRC circuit, which is based on the same oscillator as the legendary Grimm CC1 clock. Analog inputs are first converted to digital with a high-performance A/D converter. The signal then enters the DSP, which has a datapath of 48-bit wide with a 76-bit accumulator. Each driver then has its own high-quality D/A converter. The output of the D/A converters is directly fed into 120W Hypex Ncore power amplifiers. The optional LS1s subs have an additional 400W amp each. Hypex Ncore power amplifiers have extremely low harmonic distortion and are the perfect choice for the LS1a due to their linearity and excellent transient response. Throughout the whole circuit, careful attention has been paid to component selection like capacitors and resistors. Critical parts, such as power supply regulators, are of Grimm`s own discrete design.

Analog & Digital Connectivity

The LS1a has versatile connections for analog and three digital AES/EBU sources. With the optional USB audio interface, any computer can become your audio source. The LS1r controller or an MU1 music player (both available separately) allow for convenient control of volume and source selection.

Subwoofer Available Separately

An LS1a covers the full-frequency range as an elegant two-way system. By adding an LS1s or even an SB1 subwoofer set, the LS1a becomes a very-low distortion, three-way loudspeaker that can handle all music styles in any size room.