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31 Secrets

MODEL 5

A hi-tech, modestly priced ultra-performace integrated

From the mind of Matthias Ruff, chief designer of Avantgarde Acoustic and responsible for their groundbreaking work on spherical horns and the recent state-of-the-art BASSHORN, now comes an equally radical piece of electronic innovation:

The new Avantgarde Model 5 Preamp/Integrated.

Using his top hornspeaker model TRIO OMEGA as high-magnification laboratory during the R&D phase of the Model 5, Matthias concentrated on ultra wide bandwidth for maximum speed, dynamics and micro resolution. The resultant circuit is solid-state Class A/AB push/pull, with a mere two stages, a minimum of global feedback and stage-specific high-precision local feedback loops. A custom transformer with seven secondaries isolates each stage, bias control, remote volume circuitry and the custom analog display. Balanced XLR pre outs can interface with amplified speakers like the SOLO while WBT speaker terminals deliver 27/38w into 8/4ohm, with full Class A operation up to 103/110dB of output for the DUO and TRIO models respectively. One of the five single-ended RCA inputs can be configured as an AV thru-put by disabling the volume control via a set of optional internal jumpers.


Stable into complex reactive loads

Unique DSSF dual-stage
single feedback design with 220kHz bandwidth
As is common and by now expected for any Matthias Ruff design, with the Model 5 there's more than meets the eye or can be explained in brief.

For those wanting the complete tour of technical innovations, we're currently preparing a translation of his White Paper. We will link to it from this page shortly. Stay tuned. Needless to say, while the Model 5 is the perfect performance solution to drive our hornspeakers with, Matthias has conducted extraordinarily challenging tests (described in the White Paper) to insure that this amp is equally at home with difficult loads.

For volume up/down and mute convenience, Avantgarde provides a custom all-metal remote. Display illumination dials allows customization of backlighting intensity. An auto shutoff automatically extinguishes the display when the AV bypass input is activated via the jumpers and selected as the signal path. Could it get any better?

Well, in fact, we have saved the best for last.

The Model 5 preamp/integrated retails for $3,970, making it an eminently affordable state-of-the-art integrated solution. You no longer need to sweat the uncertainties of which amps to partner your Avantgarde hornspeakers with. The designer of your very speakers has assured perfect matching. Redundant complexity; unnecessary power and its associated performance compromises from paralleled output devices; long feedback loops with their timing errors and phase shifts - all of this has been eliminated. But then, what else did you expect from the technologocial innovators in Lauertal?