Avid Model 230 speakers

Three-Way Acoustic Suspension Speaker

Avid's Model 230 3-way acoustic suspension speaker system employs newly developed Avid drivers consisting of a 12-inch woofer, 4,5-inch cone midrange and 1-inch dome tweeter. The cabinet enclosure and grille assembly are said to be engineered in a unique way to create a truly integrated acoustic system that significantly reduces unwanted cabinet diffraction effects that produce "boxy" sounds in other speaker systems. Special features include modular, zero-distortion dividing network assembly; speaker fuse overload protection; magnetic fluid technology with the Avid tweeter for improved power handling; "forward aligned" shallow-cone 10-inch woofer for reduced cone breakup. Optimum Dispersion Couplers for mid and high frequency drivers; "solid front" grille panels with rolled edges to significantly reduce cabinet edge diffraction.

An optional floor stand is available to properly time-align driver units.

AVID model 103 loudspeakers

The most popular of the 100 line, the 103's are praised by our own Big Al. It's three-way air suspension bookshelf design employing a 10" woofer, a 4-1/2" midrange driver and a superb 1" dome tweeter. 3 drivers enable this unit to achieve extended bass and high frequency performance while ensuring excellent dispersion characteristics and stereo imaging over the entire frequency range. The 103 is a truly accurate loudspeaker that is capable of handling up to 150 watts of program material yet requires no more than 20 watts for most listening environments.

Specifications

Type:  three-way system

Impedance [nominal/minimum]:  8 Ω / 6 Ω

Recommended Amp. Power:

Minimum :  20 Watts

Maximum:  150 Watts

Frequency Range:  35 Hz to 18,000 Hz ±5 dB

Driver Complement:

Low Frequency :  10" Air Suspension

Mid Frequency :  4-1/2" Air Suspension

High Frequency :  1" Dome

Crossover Frequencies:  500 Hz and 3,500 Hz

Net Weight:  38 lbs

AVID Model 105 (1975)

The Avid Model 105 loudspeaker is the new reference standard for the critically acclaimed Avid "Series 100" line of loudspeakers. The result of extensive research, the Avid Model 105 is unquestionably the finest speaker we have maade.

Design Accomplishments

Uniform distribution of sound at all frequencies

Superior transient response characteristics

Exceptionally low distortion bass, even at high power levels

Broad, linear frequency response

"No compromise" reference monitor performance

Basic Design

All loudspeaker design involve trade offs between low frequency response efficiency and cabinet size Avid's engineers selected a floor standing, air suspension design to achieve the exceptionally low bass response, accurate reproduction and power handling capability expected in a "no compromise" reference standard monitor. The Model 105's large cabinet volume (2,3 cu. ft.) permits a flat response to 30 Hz while maintaining sufficient efficiency for use with 25 watt RMS to 200 watt RMS amplifiers.

The model 105 is a 3-way design employing five perfectly matched drivers carefully integrated by a sophisticated coil-capacitor dividing network. Several exceptional "state-of-the-art" design features are used in the Model 105 which deserve highlighting.

Long-Throw Woofer

The Model 105 employs a specially engineered 12' woofer with exceptional linearity and a long-throw (11/16"excursion) voice coil to achieve low distortion bass

"Basketless" Mid-Range

The Model 105's optimallysized 3" mid-range driver utilizes a new basketless construction which eliminates interior wave reflections that occur from the basket frame. such reflections cause irregularities in frequency response and degrade transient characteristics in conventional designs. Midrange frequencies in conventional design. Midrange frequencies are incredibly smooth and accurately reproduced with this advanced design.

High Frequency Driver Array

In addition to the superb 1" dome tweeter radiating forward, two auxiliary tweeters are employed to provide full 180 degree dispersion of high frequencies. The auxiliary tweeters are fired directly to the side rather than "angled off" to minimize interference effects with the front facing tweeter - a common problem that causes a peaky high end response on many multiple tweeter systems.

Zero Distortion Dividing Network

Drivers are perfectly integrated by an Avid-engineered dividing network utilizing only linear, zero distortion components such as air core coils.

The performance date below attest to the superb accuracy, smooth response and low distortion achieved by this system, but still fail to adequately portray the Model 105's incredibile openness and transparency which must be heard to be appreciated.

Frequency Response: is exceptionally flat, both on and off-axis, over the entire listening range from 30 Hz to beyond 18 kHz.

Low Frequency Distortion: we know of no other loudspeaker system with the Model 105's low distortion bass performance. There is less than 4% distortion at 40 Hz with an incredible 50 watts input.

Tone Bursts: are one of the best indicators of transient response: the ability of a speaker to accurately follow rapidly changing musical waveforms Note how well the Model 105 followes the 8-cycle input signal with minmum "hangover" and "blurring". These are exceptional toneburst responses, especially in the critical mid-range area.

Specifications

Impedance: 8Ω nominal, 6Ω minimum

Power Handling Capacity: 200 watts RMS (program material with fuse overload protection)

Minimum Recommended Amplifier Power: 25 watts RMS

Frequency Range: 30 Hz to 18 kHz ±2.5 dB

Driver Complement:

Woofer: 12" high compliance w/butyl surround, 11/16" peak-to-peak excursion, 2½ lb. ceramic magnet; 2" 4-layer voice coil

Mid-Range: 3" air suspension cone with 1" high temperature voice coil, half-roll surround

Primary High-Frequency: 1" high velocity plastic dome with 1" low-mass voice coil

Auxiliary High-Frequency Drivers: Two side-firing , 1⅜" wide dispersion cone tweeters

Crossover Network: coil/capacitor; 5 air core coils, 5 capacitors, 9 wire-wound resistors.

Low-Mid Crossover: 500 Hz

Mid_High Crossover: 4000 Hz

Auxiliary H-F Crossover: 9 kHz

Balance Controls: Two front-mounted, switch type constant impedance L-pad attenuators for mid- and high-frequencies, precalibrated flat, +2 dB, -2 dB.

Cabinet Size (W x H x D): 20⅛" x 26¼" x 15"

Cabinet Finish: Hand rubbed walnut veneer over high density (45 lb) particle board

Grille Assembly: Acoustically integrated with system to minimize cavity resonances and diffraction effects: dark brown grille

System Weight: 75 lbs

AVID Parte II "La soluzione"

Avid risolve finalmente i problemi della diffrazione acustica.

Pur costantemente impegnati al raggiunimento della più alta fedeltà, molti altoparlanti anche trai piùcostosi, sono generalmente affetti da un difetto comune; suonano come altoparlanti, o - più esattamente - si sente sempre e comunque che il suono proviene da un box (cassa, scatola etc.)

Il Vostro cervelldo "sente" la scatola

Anche chi è completamente privo di nozioni di psico-acustica, sa che gli altoparlanti hanno ormai talmente condizionato il nostro cervello che questo all'ascolto subito "riconosce" i suoni come provenienti da una scatola, con ben determinate caratteristiche di forma, misura etc.

Cosa contribuisce a creare questo spiacevole ed innaturale effetto di limitatezza?

Principalmente le onde sonore riflesse o ri-radiate quele cioè che rimbalzano sugli spigoli della cassa e del panello frontale , è a causa loro che nostro cervello "inscatola" la musica.

Niente diffrazione, niente scatola

Il problema è illustrato graficamente qui sopra. Eliminando gli spigoli del mobile e del panello frontale si riduccono gli effetti di diffrazione vale a dire si elimina l'effetto scatola. E questo è ciò che abbiamo fatto con gli altoparlanti della nuova serie Avid i Minimum Diffraction Loudspeakers™

Per aprire la scatola, abbiamo chiuso il coperchio.

trovare la soluzione è stato incredibilmente semplice. Abbiamo ideato un insieme di componenti, cassa e pannello frontale che vengono a formare un sistema acustico totalmente integrato, che elimina le diffrazioni causate dal mobile e quindi l'effetto scatola a tutte le ... scatole parlanti. I nostri nuovi tweeter e midrange vengono installati con speciali flange che ne aumentano la dispersione e che riducono al minimo la difrazzione (le abiamo chiamate Optimum Dispersion Couplers™). I pannelli frontali sono stati raelizzati in modo da completare ed enfatizzare la dispersione uniforme delle onde sonore senza alcuna diffrazione. Anzi per renderle ancor più libere da ostacoli e ridurre perciò quel dannoato "effetto scatola". Queste semplici, ma significative innovazioni, unite alle oramai famose linearità ed accuratezze dei prodotti Avid Vi permetterano di scoprire una dimensione totalmente nuova d'ascolto dandoVi un senso di spazialità e realtà prima d'ora mai raggiunti.

AVID Model 330

The pursuit of perfection in listening is not a new venture at Avid. For more than 20 years, we have pioneered in the development and manufacture of quality audio components for educational, commercial and industrial application. And for the past five years we've been vigorously involved in teh hi-fi loudspeaker business.

From the first, Avid's philosophy has been simple and straight-forward... to provide, at a reasonable cost, products that deliver the ultimate in listening performance and overall reliability. This total commitment to quality has shaped the standards of design zealously adhered to by the company.

Since their introduction in 1974, Avid loudspeakers have consistently garnered enthusiastic critical accalim. For the past two years all of us at Avid have been working behind the scenes to make good even better. The result is the new line of acoustically integrated, minimum diffraction loudspeakers described on the pages that follow. We sincerely believe that these totally integrated systems represent a signigicant advancement and provide more listening enjoyment for the dollar than has ever before been possible.

A Philosophy

The purpose of a high fidelity component system is to reproduce the original source as faithfully as possible. At Avid, we're strongly dedicated to the beliefe that the loudspeaker, like all other parts of teh system, should restate its input signal as accurately as possible. Believe it or not, there are companies that manufacture loudspeakers taht purposely enhance sound. They add bass, color mid-range, even peak highs for a more "saleable" sound. That is not, and never will be Avid's way.

Introducing Minimum Diffraction Loudspeakers ™ by Avid

There are five models in Avid's new minimum diffraction loudspeaker line.

The Model 80a and 102a are improved versions of the most popular bookshelf models from our critically acclaimed Series 100 line. The 110, 230 and 330 speaker systems are totally new designs incorporating newly developed Avid drivers and crossover networks. Each model is a totally integrated acoustical system in the truest sense of teh word. A natural result of this careful engineering commitment to accuracy is the striking similarity in the tonal balance and performance between each model. Each has the same kind of sound, clarity, low distortion bass, and overall accuracy that has earned Avid great praise in the industry. This, coupled with the new sense of spaciousness and realism made possible by our totally integrated minimum diffraction system desing, makes Avid a must consideration for most serious listeners.

We sincerely believe that the degree of accuracy and openness achieved by each model is unsurpassed in its price range; and, in fact, often is comparable to competitive systems costing considerably more.

Reliability

Since their introduction in 1974, Avid loudspeakers have proven to be exceptionally reliable. In an industry where it is not uncommon to find failure rates in excess of 5%, Avid warranty repairs rate has been less than 1/2 of 1%. Not only are Avid minimum diffraction loudspeakers build to last, but they will continue to perform at the same high level for years.

Our efficient drivers have excetionally high power handling capability. Where appropriate, extra protection is provided against accidental overload. Models 102 and 230 are fuse protected. The Model 330 contains a unique Avid engineered Auto-Reset Protective Circuit that continually monitors input to each driver and automatically shuts the system down if an overload occurs.

Guaranteed Performance

Avid's unique, Q-Span™ testing program ensures that the speaker you purchase meets or exceeds published specifications and is a perfectly matched system. It is the most comprehensive testing program we know of in the industry. "Frequency response charts are run on every loudspeaker manufactured"