XPA U 758 New

Eight Channel Low Impedance Amplifier
75 Watts Per Channel
Key Features
  • 75 watts rms output power per channel at 8 ohms
  • ENERGY STAR® qualified amplifier
  • Extron Patented CDRS™ - Class D Ripple Suppression
  • Convection cooled, fanless operation - can be stacked without extra rack space for ventilation
  • New Eight channels in a 1U, half rack width enclosure - rack mount hardware included
  • New Defeatable auto-standby with fast wake up
The Extron XPA U 758
Model Version Description Part #
XPA U 758 Eight Channel Amp, 75 watts at 8 ohms 60-1863-01

The Extron XPA U 758 is an ENERGY STAR qualified audio power amplifier delivering eight 75 watt channels in a half rack, 1U, convection cooled, plenum rated enclosure that includes rack mount hardware. The XPA U 758 offers unprecedented power and channel density with the ability to install units without using rack spaces for ventilation, conserving precious rack space. It features a highly efficient advanced Class D amplifier design with power factor correction, ultra low inrush current, defeatable auto‑standby with fast wake up, and our patented CDRS – Class D Ripple Suppression.

High Channel Density

The XPA U 758 is the industry's first eight channel, half rack amplifier. Since it doesn't require empty rack spaces for cooling or external transformers, the XPA U 758 can deliver up to eight times the channels in two rack spaces compared to competitive amplifiers. This is made possible by Extron's advanced thermal engineering, which includes fanless convection cooling, no chassis heatsinks, and Everlast power supplies. The cumulative effect of hundreds of precise design choices enables many XPA U 758 units to be placed in an equipment rack without the need to waste rack space for ventilation above the amplifiers.

XPA U 758 stacked
XPA Ultra amplifiers stacked four high without ventilation space.

Designed by Extron

Every circuit in an XPA® Ultra power amplifier is designed by our team of dedicated power amplifier engineers, ensuring that every Extron amplifier meets our high standards of excellence. By designing everything in-house, Extron engineers can meticulously optimize every detail for maximum performance, reliability, power efficiency and reduced heat.

High Efficiency

With tested and measured efficiency benchmarks up to 77%, the XPA Ultra uses less electricity to generate the same amount of power. This has the direct benefit of lower electricity costs and less power infrastructure required.

Cool Operation

An XPA Ultra amplifier runs up to 28% cooler, with up to 49% less power wasted as heat, and up to 59% less radiated heat compared to competitive amplifiers. Electronics that run cooler, last longer and don’t transfer heat to other gear sharing the same rack. The low radiated heat of the XPA Ultra amplifiers, enabled by our advanced thermal engineering, saves on cooling costs and allows more channels of amplification to be put into fewer rack spaces.

Fast Wake from Standby

The XPA U 758 meets ENERGY STAR qualification requirements with an auto power-down feature that places the amplifier into standby after 25 minutes of inactivity. When in standby, the XPA U 758 draws less than one watt of power. It quickly comes out of standby upon detection of signal in under 100 milliseconds, fast enough that the beginning of audio is not cut off. When coming out of standby, the XPA U 758 draws minimal inrush current, creating no sudden demand on power systems. For applications where the amplifier is required to remain active at all times, the XPA Ultra provides the ability to defeat auto-standby while maintaining ENERGY STAR status.

Rock-Solid Reliability

Product reliability is a high priority at Extron and we go to great lengths to engineer products with industry-leading low failure rates, driven by rigorous testing of everything we ship. From the elimination of short-lived electrolytic capacitors in the signal path, to PCB designs that exclude the use of failure-prone wire harnesses, to accelerated burn-in testing, the XPA U 758 is engineered by Extron for many years of service.


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XPA U 758
   Voltage gain 20x (26 dB)
   CMRR 75 dB @ 1 kHz (typical)
Audio input
   Number/signal type 8 balanced/unbalanced
   Connectors (4) 3.5 mm captive screw connector, 5-pole
   Impedance >10 kΩ balanced/unbalanced, DC coupled
   Nominal level +4 dBu, balanced
   Maximum level +20 dBu, balanced
   Input sensitivity 
      8 ohms +4 dBu (1.23 Vrms)
      4 ohms -1 dBu (0.71 Vrms)
   Input signal detection threshold -65 dBu ±3 dB, balanced
Audio output
   Output Number/Signal Type 8 channels, 4 or 8 ohms
   Connectors (4) 5 mm screw lock captive screw connector, 4-pole
   Load impedance 4 ohms minimum
   Amplifier type Class D
   Output power 75 watts per channel, 8 ohms, 1 kHz, 0.1% THD
50 watts per channel, 4 ohms, 1 kHz, 0.1% THD
   Frequency response 20 Hz to 20 kHz, ±1 dB
   THD + Noise 0.1% @ 1 kHz at 3 dB below clipping
   S/N 100 dB, 20 Hz - 20 kHz, unweighted
   Damping factor >100 @ 8 ohms
    NOTE     0 dBU = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV 2 dBu
   Control port (1) 3.5 mm captive screw, 2-pole
   Pin configurations 
      Standby power control (contact closure) Pin 1 = GND, pin 2 = Standby
   Power supply 100 VAC to 240 VAC, 50-60 Hz, internal
   Power consumption and thermal dissipation 
      XPA U 758
  115 VAC, 60Hz 230 VAC, 50Hz
AC Line
AC Power
AC Line
AC Power
Condition A W W BTU/hr A W W BTU/hr
Active (1/8 power), all
channels driven
8Ω 0.9 96.7 21.7 74 0.5 95.0 20.0 68
4Ω 0.7 72 22 75 0.4 70.7 20.7 71
Quiescent (idle) 0.1 9.6 9.6 33 0.1 9.4 9.4 32
Standby <0.1 <01 <1 <1 <3 <0.1 <1 <1


      Storage −40 to +158 °F (−40 to +70 °C) / 10% to 90%, non-condensing
      Operating +32 to +122 °F (0 to +50 °C) / 10% to 90%, non-condensing
      Cooling Convection, no vents
   Protection Clip limiting, thermal, short circuit, DC output
   Indication Limiter/Protect LED indicates the onset of clip limiting, thermal cycling, or a short circuit.
Over Temp LED indicates when the amplifier exceeds the recommended operating temperature for optimal unit longevity. 
Power LED indicates power state, DC output protection (see XPA Ultra Series User Guide for details).
   Rack mount Yes, with included mounting brackets or optional rack shelf
   Enclosure Metal
   Enclosure dimensions 1.7" H x 8.7" W x 10.5" D (1U high, half rack wide)
43 mm H x 220 mm W x 267 mm D
   Product weight 4.2 lbs (1.9 kg)
   Vibration ISTA 1A in carton (International Safe Transit Association)
   Regulatory compliance 
      Safety CE, C-tick, CUL, UL rated for use in plenum airspaces, meets UL 2043 for heat and smoke release, meets UL 60065 and IEC60065 for AV Equipment
      EMI/EMC CE, C-tick, FCC Class B, ICES, VCCI Class B, CISPR 22 Class B
      Environmental Compliance ENERGY STAR® qualified amplifier, CEC, European Code of Conduct, RoHS
   Product warranty 3 years parts and labor
   Everlast power supply warranty 7 years parts and labor
    NOTE     All nominal level are at ±10%.
    NOTE     Specifications are subject to change without notice.
    NOTE     Shipping weights and dimensions are available at www.extron.com
Shipping Dimensions and Weights
    Part # Height Width Depth Weight
    60-1863-01 4.5" (11.4 cm) 14.25" (36.2 cm) 13.25" (33.7 cm) 6.0 lbs (2.72 kg)


Panel Drawing

Panel Drawing
© 2020 Extron. Specifications are subject to change without notice.