Emotiva XPA-DR2 Differential Reference

Power Supply: The Foundation of a Great Amplifier

In amplifier design, it all starts with the power supply. The XPA-DR2 features a custom version of our high-current Switching Mode Power Supply (SMPS) - a lightweight, powerful, and intelligent design capable of delivering over 3 kW of continuous power with absolute reliability and extremely high efficiency. Our state-of-the-art SMPS offers the dynamic attributes of a classic transformer-based design without any of the drawbacks. Like the best transformer-based power supplies, our SMPS provides plenty of continuous power to allow our amplifier modules to live up to their full performance potential, and plenty of dynamic power to ensure musical peaks are never compressed or limited. However, compared to transformer-based designs, our SMPS is lighter and more efficient; it is also fully regulated,

The Latest in a Long Line of Great Amplifiers

The Differential Reference amplifier modules we use in our XPA-DR amplifiers utilize the same basic circuit topology as our legendary XPR Series amplifiers. A unique differential input stage, with a cross-coupled current source, drives a balanced voltage amplification stage, and this advanced input circuitry delivers an incredibly accurate and pure audio signal to the complementary, fully discrete output stage. Two of these modules work together in perfect synergy to power a single channel of one of our new fully balanced, fully differential XPA-DR amplifiers. Together, they deliver a holistic, natural, and powerful listening experience. Low-level musical details and dialogue emerge from a deep black background; Musical crescendos are delivered with stunning impact and precision. The wide bandwidth,

Class A/B Sound Quality Meets Optimized Class H Efficiency

The XPA-DR2’s Differential Reference modules each utilize a matched pair of amplifier modules, each featuring our fully analog Class A/B output stage and our highly regarded Soft-Switch™ Class H power supply topology, which significantly increases their efficiency without compromising the audio performance you expect from an Emotiva amplifier. Each one’s output stage operates on a lower supply voltage at low power levels to minimize idle power consumption and standby power losses, instantly switching to a higher voltage rail when necessary to ensure the signal passes cleanly and without clipping. This process takes place continuously in real time, enabling greater overall efficiency, cooler operation, longer component life, reduced power consumption, and increased reliability.

By registering your product, you have the opportunity to extend the warranty to 3 years for SVS and Emotiva brands, with the exception of Emotiva BasX ranges which receive an additional 1-year warranty

• Fully modular audio power amplifier
• High-efficiency switched-mode power supply (SMPS)
• Independent Class A/B amplification modules
• High current and short signal path
• Output power (both channels driven):
  • 550 W RMS, per channel, into 8 Ohms, at <0.1% THD
  • 800 W RMS, per channel, into 4 Ohms, at <0.1% THD

Measurements

• Power bandwidth (at rated power; 8 Ohm load): 20 Hz to 20 kHz (+/- 0.1 dB)
• Wideband frequency response: 20 Hz to 50 kHz +0/-2 dB
• THD + noise: <0.008%; at 100 W RMS; 1 kHz; 8 Ohms
• Signal-to-noise ratio (8 ohm load):

  • 120 dB; ref FTC rated power; unbalanced input (A-weighted)

  • 96 dB; ref 1 watt; unbalanced input (A-weighted)

• Minimum recommended load impedance (per channel): 4 Ohms
  • (equivalent to one 4 Ω load or two 8 Ω loads in parallel)
• Damping factor (8 ohm load): > 500
• Input sensitivity (for rated power; 8 ohm load): 2.1 V
• Input impedance:
  • 33 kOhms (balanced)
  • 23.5 kOhms (unbalanced)

Connectivity

• Input connections:
  • Unbalanced (RCA)
  • Balanced (XLR); one each, per channel, user-selectable
• Output connections
  • 5-way audiophile-grade, gold-plated binding posts

Trigger

• Trigger input: 5 - 12 V (AC or DC); <10 mA input current required
• Trigger output: 12 VDC; can drive any load up to 120 mA

General

• Maximum power consumption: 1700 watts
• Dimensions (W x H x D)
  • 17.0” x 8.0” x 19.0” (43.18 x 20.32 x 48.26 cm) with feet
  • 17.0” x 7.0” x 19.0” (43.18 x 17.78 x 48.26 cm) without feet
• Weight:
  • 42.5 lbs (19.27 kg) unboxed
  • 47.5 lbs (21.54 kg) boxed