ATI Amplifier Technologies Inc.

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ATI Amplifier Technologies Inc.

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ATI's Morris Kessler is presented with

HOME THEATER MAGAZINE'S 2003 RAVE AWARD

The ATI 2007 Amp was awarded Home Theater Magazine's 2003 Rave Award for Best Midlevel Amplifier.

Home Theater Magazine praised the amp's open sound, well designed protection system,

generous power and substantial value.

Check out these

NEW REVIEWS

Home Entertainment & Design Magazine Review - ATI AT3000

The 200-MPH Amplifier

by Brent Butterworth, January 06, 2003

With 2,100 watts of power and an elite circuit design, ATI's AT3000 is the audio equivalent of an extreme sports car..

Any product can be refined; the question is, do the refinements substantially improve the product? In some cases—increasing a car’s horsepower, for example—the answer is usually “yes.” In others—such as substituting filet mignon for cubed chuck in a pot of chili—the answer is, unequivocally, “no.” With audio amplifiers, however, the answers are seldom so cut-and-dried.

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Home Theater Magazine Review - ATP8500 Pre/Pro - AT2007

ATI ATP8500 Pre/Pro and AT2007 Amplifier: High-end tricks at a mid-fi price.

by Chris Lewis, March, 2003

Why is it so much harder to sell the concept of value to people as they cross over into the higher end of the A/V realm? In the lower price ranges, people don’t only appreciate value, they actively seek it out. Down there, people whole-heartedly buy into the idea that you can often find equivalent performance, features, etc., for less. But, as price tags get bigger, some people’s rationality seems to fade.

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ATP 8500 and 8500.1

The ATP8500 Audio Video Preamp Processor is a truly unique product. More than just a preamplifier, the ATP8500 is a complete control center. The ATP8500 allows the casual user or the most experienced custom installer the ability to customize even the most complex installations. ATI has successfully combined the purest sonic capabilities with the most advanced set of features/functions in the industry. ATI is the first to incorporate a 5-inch color monitor on the front panel to facilitate initial setup and future programming. This onboard monitor previews most video sources including menus from DSS systems. The ATP8500 also features balanced outputs and an AES/EBU Digital Input for devices such as DAT players.

The ATP 8500 decodes Dolby Digital, DTS, Dolby Pro Logic and DVD

audio. The 8500.1 adds Dolby EX, Dolby PL II, DTS ES, DTS NEO6. Naturally, the ATP 8500 can also function as a high-end stereo preamplifier, and the digital signal processing and conversion can be bypassed. The 7.1 channel input is provided with comprehensive volume control facitlities. This ensures that the ATP 8500 will remain compatible with new multi-channel formats to appear in the future. Music Surround Modes include: Natural; Jazz Club; Stadium and Party.

Features

8500 Surround Decoding •Dolby Digital

•DTS

•Dolby Pro Logic

•DVD audio

8500.1 Surround Decoding

(in addition to above) •Dolby EX

•Dolby PL II

•DTS ES

•DTS NEO6

Analog Audio Inputs •10 Stereo Pairs of RCA Type Jacks

•2 Balanced XLR For Direct Analog Bypass

Digital Audio Inputs •4 Coaxial

•2 Toslink Optical

•1 EAS/EBU

Analog Audio Outputs •8 Balanced XLR and 8 Single-ended RCA Type Jacks

•1 Pair Second Zone RCA Type Jacks

Digital Audio Outputs •1 Toslink Optical

Video Inputs •6 Composite RCA Type Jacks

•6 S-Video Jacks

•3 Sets of Component Video Pb, Pr, and Y Jacks with Full Component Video Switching Capability

Video Outputs •1 Composite Monitor RCA Type Jack with On-Screen Display

•1 Composite Monitor RCA Type Jack (No On-Screen Display)

•1 S-Video Monitor Jack with On-Screen Display

•1 S-Video Monitor Jack (No On-Screen Display)

•1 Set of Component Video Pb, Pr, and Y Jacks

Other Special Features •Second zone audio and video operation.

•Headphone jack with independent volume control.

•Input search selector that automatically identifies which sources are connected and the last to be activated.

•2 jacks for external IR receivers.

•3 programmable remote trigger outputs.

•RS-232 jack for configuring and connection to external systems.

•All circuit boards are 4-layer, glass-epoxy. This extra attention to detail guarantees low-noise and prevents the possibility of “cold” solder joints.

•All connectors in the audio and video paths are gold-plated to ensure reliable, tight and corroision-resistant connections.

Chassis Dimensions Width, Height and Depth 17 x 7 x 15.5 inches

(431.8 x 177.8 x 393.7 mm)

Weight Net Weight 24 lbs (10.91 kg)

Shipping Weight 32 lbs (14.55 kg)

ATI 3000 series

A Fully Differential Balacced amplifier!

Click below for more pictures and info:

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300wpc available in

2 ch $

3ch

4ch

5ch

6ch

7ch

ATI’s “Pure Balance”® technology introduces a range of models that feature true differential design; balanced from input to output. This design allows the quietest and purest reproduction of the audio signal. Power output is 300WRMS/ channel into 8 Ohms from 20Hz to 20kHz with no more than 0.03% THD and I.M. distortion. The AT3000 is available in 2 to 7 channel configurations and is upgradeable by adding 300W power modules. Each model comes standard with 2 massive toroidal transformers with quick connect plugs.

MSRPs range from $1995.00 for the AT3002, 2-channel version to $3995.00 for the AT3007, 7-channel model.

Additional modules are $400.00.

See below for additional features common to all ATI models.

What is a differential drive amplifier?

A truly differential drive amplifier, consists of two complete amplifiers for each channel: one + amplifier and - amplifier. The positive input signal is amplified by the positive amplifier and the negative input signal is amplified by the negative amplifier when a balanced signal is applied to the input. There is no ground reference since the output signal is derived from the combination of the positive signal and the negative signal. A differential drive amplifier is sensitive to the difference between the positive and negative input signals resulting in those signals common to the input being cancelled. The input stages of each channel of the amplifier are of differential design all on one substrate resulting in the reduction of hum and turn-on/turn-off pops. This is referred to as "common mode rejection".

Why is a differential drive amplifier superior?

By virtue of "common mode rejection", the "Pure Balance"® amplifier exhibits lower noise, lower distortion, and immunity to stray electronic fields and anomalies in the input signal from outside interference. The resulting benefit in music reproduction is more silence between each musical note. In home theater applications, the result is a deeper, cleaner soundstage. An apparently larger dynamic range results because of the enhanced silence between sounds. Clarity is improved significantly because of lower distortion and the differences between loud and soft passages are more pronounced. The Slew rate is doubled in differential drive amplifiers as compared to single-ended designs. The slew rate in high-end amplifiers has always been considered important. The highest possible slew rate is desirous, so having twice the slew rate is a significant benefit. A high slew rate allows for sharp attacks on all your transient frequencies resulting in more realistic sensations from either music or sound effects. Another virtue of the differential drive amplifier is that it requires only one-half the rail voltage for a given power output rating into 8 ohms as compared to a single ended amplifier. Reducing the rail voltage by one-half will allow the output transistors to work in a more linear fashion, thus improving the transient performance of the amplifier. This results in much richer transients in the music; cellos sound like cellos, flutes sound like flutes, clarinets sound like clarinets and acoustic guitar recordings will exhibit the same phenomenal richness as experienced at live concerts.

Summarizing benefits

Lower noise

Double the slew rate

Apparent gain in volume

Immunity to stray fields

Lower distortion

Reduction in all types of amplitude distortion

Immunity to hum

Better transient performance

Remote Trigger:	Activated from 3.3VDC to 24 VDC via a heavy-duty relay
Protection Circuits:	Optically –coupled with full automatic reset.
Toroid Transformers:	40% more efficient than EI type. Separate bi-filar windings for each channel guaranty lower noise and crosstalk.
Circuit Boards:	Double-sided, FR-4 glass-epoxy, computer-grade boards are assembled in-house.
Soft Start Circuitry:	Ultra soft turn on reduces in-rush current to a minimum. Multiple units can be turned on without tripping circuit breakers eliminating the need for sequencing.
Power Transistors:	High-current, bi-polar output transistors with active bias circuits result in effortless operation.
Power Cord:	Detachable, 3-wire cord.
7-Year Warranty	Parts and labor against defects in parts or workmanship.
Dimensions:	17"w X 8.75"h X 18"d (chassis) weight - 56 to 106lbs (model dependent)

AT 2000 Series

The AT2000 “Pure Balance”® series feature ALL the same design elements of the AT3000 except that the power output is 200WRMS/channel into 8 Ohms. Configurations are available from 2 to 7 channels with MSRPs beginning at $1495.00 for the AT2002 to $2995.00 for the AT2007. Additional modules are available for $300.00.

See below for additional features common to all ATI models.

Remote Trigger:	Activated from 3.3VDC to 24 VDC via a heavy-duty relay
Protection Circuits:	Optically –coupled with full automatic reset.
Toroid Transformers:	40% more efficient than EI type. Separate bi-filar windings for each channel guaranty lower noise and crosstalk.
Circuit Boards:	Double-sided, FR-4 glass-epoxy, computer-grade boards are assembled in-house.
Soft Start Circuitry:	Ultra soft turn on reduces in-rush current to a minimum. Multiple units can be turned on without tripping circuit breakers eliminating the need for sequencing.
Power Transistors:	High-current, bi-polar output transistors with active bias circuits result in effortless operation.
Power Cord:	Detachable, 3-wire cord.
7-Year Warranty	Parts and labor against defects in parts or workmanship.
Dimensions:	17"w X 7"h X 17"d (chassis) weight - 50 to 95lbs (model dependent)

AT 1800 Series

Click on Info link below

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The AT1800 series is the direct outgrowth of the award winning AT1505 5-channel amplifier that led the home theater industry in audiophile-grade sound and performance at a value price. The AT1800 is available in 6 configurations from the AT1802 2-channel model to the AT1807 7-channel version. Power is 180WRMS/channel into 8 Ohms from 20Hz to 20kHz with no more than 0.03% THD and I.M. distortion. Each model comes equipped with two toroidal transformers making upgradeability easy via the addition of a plug-in module. Other features making it installer-friendly are: a detachable IEC power cord, optically coupled protection circuits, soft-start circuit and convection cooling eliminating the need for fans.

MSRPs range from an incredible $995.00 for the AT1802 to $1995.00 for the AT1807.

Additional modules are $200.00.

See below for additional features common to all ATI models.

Remote Trigger:	Activated from 3.3VDC to 24 VDC via a heavy-duty relay
Protection Circuits:	Optically –coupled with full automatic reset.
Toroid Transformers:	40% more efficient than EI type. Separate bi-filar windings for each channel guaranty lower noise and crosstalk.
Circuit Boards:	Double-sided, FR-4 glass-epoxy, computer-grade boards are assembled in-house.
Soft Start Circuitry:	Ultra soft turn on reduces in-rush current to a minimum. Multiple units can be turned on without tripping circuit breakers eliminating the need for sequencing.
Power Transistors:	High-current, bi-polar output transistors with active bias circuits result in effortless operation.
Power Cord:	Detachable, 3-wire cord.
7-Year Warranty	Parts and labor against defects in parts or workmanship.
Dimensions:	17"w X 7"h X 16"d (chassis) weight - 50 to 93lbs (model dependent)