WATT/Puppy 5.1 Loudspeakers

We have a pre-owned pair of WATT/Puppy 5.1 loudspeakers in the shop.

For any inquiries or questions about the products give our sales staff a call at 626 793 7229, or check out our Audiogon listing HERE

About the WATT/Puppy 5.1

The WATT precision loudspeaker system was designed and developed by David A. Wilson to serve as a highly accurate yet portable professional monitor for on-location recording work.  Microphone pattern selection and placement as well as master tape evaluations may be quickly and correctly performed using the WATT. The extraordinary transparency, coherence, and dynamic linearity of the WATT also make it ideal for the sonic evaluation of audio hardware and software, including associated electronic audio equipment, D/A converters, passive circuit components, signal cables, solders, and contact treatments.  Its capabilities of high resolution, accurate otonal and harmonic integrity, and unsurpassed sound-stage recreation make it an ideal system for the most demanding music lovers. In the application as a center channel for video systems the WATT( usually with A.V. Puppy), provides unrivaled dialogue intelligibility and convincing dynamics. The WATT’s size and styling options allow it to be integrated harmoniously into a wide variety of fine interior decors.

The WATT is designed around a massive, yet compact, enclosure utilizing proprietary polymer materials technology.  The enclosure material exhibits excellent internal damping and a correct mechanical impedance match to the frame of the drivers.  Additional mechanical tuning is provided by null point placement of lead alloy ingot blocks, bituminous surface treatment and riigid cross-bracing.  The acoustical tuning of the low frequency system is modeled after the quasi-third order Butterworth response, which provides linearity in the upper-bass (without the usual mid-bass hump) with superior transient performance.  The low-frequency range of the system is normally extended with Wilson Audio Puppy high speed woofer. The crossover network uses multiple slopes to achieve acoustical phase linearity. Minimum energy/time-storage behavior in the crossover is achieved by using only the finest audio-grade propylene capacitors, OFC air-core inductors, and time coherent wire.  The components are matched to better than 0.1% tolerance. The drivers were selected because of their frequency response linearity, impulse stability, and most importantly their intrinsic musical quality.

The enclosure of the WATT loudspeaker system is machined from a  unique material composed of ceramic and mineral filled methacrylate polymer. This material has been chosen because it provides a nearly ideal blend of rigidity, mass, and internal vibration damping.  Ideally, an enclosure material should be infinitely rigid to preserve dynamic contrasts, while at the same time it should have infinite internal damping. To satisfy the first demand, the enclosure could be made out of diamond, which would of course be prohibitively expensive! To satisfy the second demand, the ideal enclosure could be made out of rubber, but such an enclosure would exhibit very poor dynamic linearity.  Because of its brittleness, the WATT enclosure material is much more demanding material to work with than wood or metal.

The WATT loudspeaker enclosures are hand-painted with Wilsongloss paint and hand-polished to a high luster.  While the paint seems quite dry to the touch, final curing and complete hardening takes place over a period of four weeks. To protect the finish of the WATTs during final manufacture, shipment, and setup in a listening room, Wilson has installed a removable layer of protective film over the finish.

From 200Hz on up to 100KHz, the impedance of the WATT/Puppy System V is higher than that of the WATT III/Puppy II, being generally 6 ohms and higher.  This allows the System V to be used with OTL amplifiers. The Impedance dips to 2 ohms between 90Hz and 100Hz.

The very high current input terminals located on the rear of the WATT V loudspeaker are color coded so that RED corresponds to positive and WHITE to negative, or common, or ground on the amplifier output. Be sure to connect the loudspeakers in phase with each other. 

The damping factor of an amplifier is a function of the amplifier’s output impedance into a given load impedance. Solid state amplifiers, due to their intrinsically low output impedance, tend to have a higher damping factor than vacuum tube amplifiers. Vacuum tube amplifiers typically are transformer-coupled in their output stage and the secondary windings of the output transformer present a relatively high source impedance. This source impedance is a parameter which must be considered in the tuning of the air volume of the loudspeaker enclosure. An interesting theoretical consideration is that if a loudspekaer is designed around a solid state amplifer and hten used with a vacuum tube amplifier, it will tend to souund loose and tubby in the mid-bass region. The WATT loudspeaker system allows the lsitner to precisely tailor the air volume tuning of the enclosure to the amplifier of your choice.

The Puppy high speed woofer was introduced in 1988, two years after the WATT. Prior to the Puppy, users of the WATT who desired more low frequency extension, would add various subwoofers from other manufacturers. The results were unpredictable and often compromised overall musical performance. It became clear to Mr. Wilson that none of these subwoofers provided the speed necessary to blend seamlessly with the lightning-quick WATT.

The Puppy was the result of  very careful weighing of actual versus assumed performance requirements. For example, it has been generally assumed that woofers need to provide response down to 20Hz, and that low frequency extension is of primary importance. In other words, transient quickness in the woofer if of secondary importance. Wilson, however, realized that bass extension below 35-40Hz is of secondary importance to most sensitive listeners. Furthermore, the vain pursuit of acceptable 20Hz response from a system the size of the Puppy would result in the sacrifice of performance in those areas felt by Wilson to be of paramount importance. 

Thus, in the initial design phase of the Puppy, Wilson concluded that what was needed was a highly articulate, low distortion, non-resonant, compact high-speed woofer with robust power handling and high sensitivity and excellent reliability. Two very high quality low-frequency drives are driven in parallel in a rigidily cross-braced, tuned enclosure. Special enclosure materials are used to quickly dampen spurious resonances in the structure. The crossover network in the base of the Puppy is composed of the finest audio grade components, held to tolerance better than 0.1%.

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