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Prism Series

Speaker designers have known for over forty years that the box is not the ideal shape for loudspeakers. The worst shape would be a cube. The reason is that all sides are equal in length and parallel. The rectangle box is slightly better because not all sides are equal in length but all sides are parallel. Parallel boxes reflect energy back and forth. The energy inside the box competes with the energy being produced outside the box. As the woofer returns backwards, it creates a reflected energy that bounces back and presses directly against the woofer. The driver literally is fighting against its own energy.

The Prism has no parallel surfaces. Each angle is less than 45 degrees. This means that energy created by the loudspeaker is compressed upon itself. All Prism loudspeakers are ported on the bottom. This couples the cabinet with the floor and increases the impact of bass.

Many customers ask me how the Prism compare against the drum series. The real question is how does the Prism series compare against floor standing boxes. The answer to that question is that the Prism does sound better. Not only does the Prism sound better, it is also finished nicer than other loudspeakers selling in its price range.

The Prism loudspeakers were designed for people who preferred a floor standing design. The Prism 6.1 and 6.6 are focused on lower powered systems. I use the Prism 6.6 in my bedroom with a small 30 watt integrated amplifier. The Prism 6.6 would be ideal for tube amplifiers or modest A/V amplifiers. The Prism 6.1s are also very efficient but less expensive than the Prism 6.6.

The Prism 6.9 is focused on producing the absolute best bass possible without a subwoofer. The bass performance of the Prism 6.9s is astonishing.

Cabinet

  • 3/4" Tropical MDF, covered with 3 mm real teak.
  • Floor standing type, ported in the bottom to use floor for tuning, no space required behind speakers
  • Unaffected by floor of carpeting type, no stands required
  • Tweeter angled towards listener
  • Rigid structure, large internal volume
  • High quality finish, available in teak, rosewood or black

Components

  • High quality silver/copper wire for internal wiring
  • High quality connectors
  • Crossovers use inductors rated 600 watts and high quality polypropylene capacitors

Drivers

High quality drivers from Vifa, Scanspeak and other manufacturers (varies according to models).

  

Models

Prism 3.0 - Our lowest priced speakers featuring a full range driver.

Prism 4.1 - Shielded center speakers that is ideal for home theater setups

Prism 5.2 - A high performing speaker that should replace the wood-drum nOrh 5.1 for AV applications

Prism 6.1 - Speakers that provide more refined sound and greater sensitivity

Prism 6.6 - Dual woofer based speakers at 4 ohms

Prism 6.9 - Designed to replace the acclaimed nOrh 6.5.

 


General information

The prisms series are floor standing speakers that do not require any space behind them. This makes them more versatile. These speakers work as good as their wood drum counterparts, yet they offer greater efficiency and sensitivity. Prisms were designed to be ideal for AV applications, and use with tube amps (such as Decware Zen).

The cabinet design ensures that there is a larger internal volume than the wood drum series, so that the bass is deeper. There are no parallel surfaces (as with the wood drums) and the cabinet material is thick. All of these qualities enhance the sound of the speakers.

  

 

Features, applications and pricing

Prism 3.0

  • Single full range driver
  • Frequency response: 75Hz to 20,000 Hz.
  • Maximum constant power is 20 watts
  • Sensitivity 87 dB

The prism 3.0 pairs are magnetically shielded speakers, which are meant to upgrade satellite speaker system such as Bose Lifestyle. These speakers are also ideal for replacing the satellite units of your multimedia (computer) speaker system.

Price - US$250 / pair, shipped to most locations.

Prism 4.1

  • Uses the same drivers as the Prism 5.2
  • Plays deeper and louder then nOrh 4.0
  • Magnetically shielded

The Prism 4.1 can be used for rear, center or even left and right speakers. They can be placed on the floor without legs or with legs on higher surfaces such as TV tops. They are good for any application needing shielded loudspeakers or center speakers, shelf mounted rear loudspeakers in A/V systems

Price - US$ 275 / pair, shipped to most locations.

Prism 5.2

  • Uses a single 5 ½" Vifa woofer and the same tweeter used in nOrh 5.1
  • Frequency Response: 48 Hz to 20,000 Hz
    +/- 3dB
  • Crossover: 4000 Hz
  • 2dB more sensitive then nOrh 4.0/5.1
  • 15 liters of internal volume
  • Great bass, plays very loud even with 40-60 wpc receivers

The 5.2 was designed to be used for AV systems, with receivers. They can be used as main speakers in bedrooms, studies, dens, kitchens, dining rooms and dorms, or rear speakers for high-end AV systems.

Price - US$ 500 / pair, shipped to most locations.

Prism 6.1

  • Uses a new 6 ½" Vifa woofer
  • Provides lower distortion, higher sensitivity (90 dB)
  • Sound is more refined than the Prism 5.2
  • Implements a new highly efficient tweeter from Vifa
  • Large 33-liter cabinet


The Prism 6.1 is designed for people wanting a bit more loudness or people who have lower powered systems. The Prism 6.1 offers reasonable sensitivity and would work fine with tube amps, such as the Decware Zen for modest volume.


Price - US$ 795 / pair, shipped to most locations.

Prism 6.6

  • Uses two 6 ½" Vifa woofers
  • Same tweeter as Prism 6.1
  • Provides even higher sensitivity of 93 dB
  • Rated at 4 ohms
  • Large 43-liter cabinet

The 6.6 Prisms are designed to offer high sensitivity for smaller powered units. The two woofers reduce distortion, increase power handling and increase sensitivity. A small 40 to 60 wpc A/V receiver will produce very realistic sound from movies and music.

Price - US$ 995 / pair, shipped to most locations.

Prism 6.9

  • Uses the best tweeter from Vifa (XT25TG30-04)
  • Uses the same Vifa woofer as nOrh 6.5 (M18WO-09-08)
  • The bass is -3 dB at 34 Hz
  • At -10 dB the response is 28 Hz
  • Large 33-liter cabinet

This product is our prism-shaped replacement for the discontinued nOrh 6.5. This product is so far the best product we make in the prism series.

Price - US$ 1195 / pair, shipped to most locations.

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