Do you really price match?
We will match any e-Commerce (Online store) Authorized USA Dealer's advertised price. Please call us toll free (877) 370-1972 and alert us to where you found the product cheaper. We will verify, and if the site is an Authorized US Dealer- we will match their price. However, if the price is below the manufacturer Minimum Advertised Price (MAP)- we will have to get authorization to match the price. We will not violate our signed agreements that we have with our vendors.
What about price matching from an auction site?
We do not price match any auction or "grey market" site.
Be advised, any purchases from an auction or unauthorized (grey market) websites can lead to future issues in regards to warranty or support. Most manufacturers will not honor any claims or warranty from these type of sales. Spend your money wisely by purchasing from an Authorized Dealer. In a lot of cases, saving a little bit of money can cost you more after the sale is completed.
We offer a 30 Day Return Policy should you choose to return a product for any reason.
Since 1972 Sound Approach has backed all items that we sell. If the product you have purchased is not right for you, let us know. We strive to find the right product for your unique situation. We will work with you to find a sound solution and recommend what product will resolve your issue. That being said, we will credit, refund, or exchange any product you purchase within 30 days of your purchase.
Certain products, may be returned, but are subject to a restocking fee of 20%. Please contact us to determine, before ordering, if the item will fall into this category. Usually it is for the high-end electronics & audiophile-grade speakers. We want to make sure that we match you with the correct product, so please call and speak to any of our technical experts prior to ordering.
Four Important Conditions:
1. We need to get the original box, manuals, and any materials that came with the product for you to receive a full refund- with no re-stocking charges. The item/product must still be in like-new condition.
2. If the item had Free Shipping and you are returning a non-defective product, the original shipping cost will be deducted from the total that will be refunded back.
3. Special Ordered items are not returnable (see below).
4. Once an RMA is issued- it is valid for 10 business days. After 10 days, the RMA is canceled and returns will not be accepted.
Shipping and handling charges cannot be reimbursed unless it is our mistake. Yes, we can make mistakes – not often, but it can happen.
Retail Price: $2,195.00Your Price: $1,995.00 1995 InStock
ATI Amplifier Technologies - AT54XNC Series - D-Class Amplifier
Amplifier Technologies, Inc., the prolific manufacturer of many of the high-end audio’s best amplifiers added the N-Core series of amplifiers to their line-up. The AT5XXNC amplifiers use Hypex N-Core Class D output modules with ATI designed input buffers and linear power supplies and are available with two power configurations. The AT52XNC amps are rated at 200W RMS per channel at 8 ohms with 300W RMS at 4 ohms and are available with 2 to 8 channels. The AT54XNC amplifiers use two N-Core modules per channel in a differential bridged output configuration delivering 500W RMS per channel at 8 ohms and 900W RMS at 4 ohms. The AT54XNC amplifiers are available with 1, 2, 3 or 4 channels.
These AT5XXNC series amplifiers break new ground in other ways. They are the first ATI amplifiers to use micro-processor control for turn-on delay and feature automatic AC power recognition and configuration. The amplifiers not only recognize whether they are hooked up to 117V or 230V nominal power, they automatically self-configure. The amplifiers also incorporate a new and novel “sleep” circuit. When the amplifier receives no input signal for a period of 10 minutes, power is removed from the output modules and a front-panel LED begins to flash. As soon as an input signal is detected on any channel, normal playback operation resumes instantaneously.
Per Morris Kessler, ATI’s president and chief engineer, “We are excited to offer amplifiers with ATI’s legendary high performance and reliability in designs that reduce amplifier weight by up to 50%.” ; with the rated distortion below 0.05% and signal-to-noise ratio of 123 dB (minimum, referenced to rated output), each amplifier in the series is capable of playing back the full dynamic range available on today’s lossless recordings.
Note: Sound Approach is an Authorized Dealer for the United States only. Visit ATI-AMP.com for a list of International Dealers.
Number of Channels
EIA 1kHz Output Power at 8 Ohms
EIA 1kHz Output Power at 4 Ohms
FTC Full Bandwidth Output Power at 8 Ohms
FTC Full Bandwidth Output Power at 4 Ohms
Input Sensitivity for Full Rated Power
Frequency Response at Rated Output
Signal-to-Noise Ratio “A-Weighted”
Total Harmonic Distortion (THD)
Intermodulation Distortion (IMD)
Power Bandwidth FTC
Voltage Gain through RCA
Voltage Gain through XLR
Remote Trigger Voltage
DC Output Offset
Chassis Dimensions (W x H x D) Inches
Net Weight (lbs/kg) Model Dependent
Shipping Weight (lbs/kg) Model Dependent