Emotiva XPR-1 WILL SHIP or LOCAL PICKUP

WILL SHIP! UPS Ground to CA estimated at $200 per boxed Mono Amp; $160 per box to TX; $150 per box to Boston, etc.

This listing is for 2 Emotiva XPR-1 solid state mono power
amplifiers in very good used

condition, a few small dings, hard to see; these show very well. These rarely
show up, not often seen on ebay or audiogon. The price listed is for two amps together; not sold separately. Show very well, though you can see a ding on top edge of one amp, not obvious from a few feet away. (See the right corner edge in photo 4 of 8 pics.) Work perfectly, sound fantastic!


Also offered for LOCAL PICKUP FOR THE PAIR, or meet half way to deliver. I've owned this model of mono's 3 times over the last 7 years, and the price goes up not down given the specs and reviews. This series of reference quality amplifiers, the Emotiva XPR-1, while hardly inexpensive in an absolute sense, comes in at a crazy attractive price/value ratio.

This is substantially less than most other amplifiers that boast similar specifications, which often approach, and some cross, the five-figure mark.

Clocking in at 99 lbs per channel (I estimate 125 lbs. boxed with special reinforcement), and it is only a single channel, the XPR-1 is a monster of an amplifier.  The XPR-1 sports the same 30 pound, 2.5 kVA transformer, 240,000 uF capacitor bank, and thirty six 250 watt output transistors as the XPR-2, just with one less input channel and providing nearly twice the power output per channel.  The two halves of the XPR-1 feature mirrored differential gain stages that eliminate op-amps from the signal path when running from balanced inputs.

One the inside, the XPR-1 is a balanced, differential class A/B amplifier with a triple Darlington output stage and a class H modification to the power supply topology, which is said to increase power efficiency. 
The power supply capacitor bank is comprised of a large number of smaller devices utilizing 24 x 10,000 uF capacitors. 
The advantage of using a larger number of smaller capacitors is said to be in improved transient response with shorter

charge/discharge cycle times. Emotiva states that high quality electronic components are used throughout the internal circuitry of the XPR-1 including precision metal film resistors, low ESR film capacitors, and multi-layer glass epoxy printed circuit boards.

The internal circuitry is controlled with an ARM-7

microprocessor that monitors the XPR-1 to ensure operational stability and provide protection against common electrical fault and thermal issues such as over-temperature, shorted speaker connections, and ground fault problems. 
The status of the protection and other

circuitry is reported by dimmable front mounted LEDs that can be oriented to read left/right/vertical with level metering for VU and peak current with hold and release functionality.

To fuel this engine of audio, Emotiva recommends a dedicated

20 amp circuit for the XPR-1, and because you will need at least two

XPR-1s, what that really means is two dedicated circuits to actually hit the

rated 1kwatt power into an 8 ohm load, which is a draw of 1500 watts for

each amplifier. Of course you can still run both amps off one dedicated 20A line and

probably never come close to drawing full power with both channels driven for real program material. The XPR-1 supports 115/230 VAC at 50-60 Hz operation and auto switches

between the two voltages.  So, power mongers will want to install a

dedicated 220V line to really unleash the big dog. 

Inside the chassis, there are three large aluminum heat

sinks arranged in an H pattern forming compartments that separate the output

transistors, the transformer, and the capacitor bank.  The two primary
legs of the heat sink H run the full length of the chassis and appear to function as an internal reinforcing frame with

attachments to the front and rear plates.

The faceplate of the XPR-1 is formed from multiple 1 inch machined billet aluminum sections that are laser embossed and hand polished.  In addition to the LED meter

display, the faceplate includes vertical accent lights and several buttons to

operate the meter display for setting peak, dim, meter, and orientation along

with a soft touch stand-by button with in-rush current limiting circuitry and

an operation indicator LED.

At the rear, the XPR-1 features user select-able balanced
XLR and unbalanced RCA inputs that are set with a toggle switch.  The
unbalanced RCA input is constructed of machined, gold plated solid brass.  The custom manufactured Emotiva speaker terminals are heavy duty gold plated binding posts with clear acrylic insulators that can accept heavy gauge bare

wires, spade lugs, or banana plugs and Emotiva recommends using at least 10

gauge speaker wire or lower to minimize resistive heat losses.  The XPR-1
also

includes a 12V trigger input and output, IEC detachable power cord terminal, a

rocker power switch, and an input voltage indicator LED showing the 115/230V

operation state.

So why does anyone need all of this power?  It is not
really about producing high

volume, it's about effortless control and dynamics.  It is about the
ability of an amplifier to have the strength to

pry every last detail free from a recording and hold it out on display for all
to

hear.

Specs

Fully balanced, discrete, quad differential class A/B power

amplifier

Class H power supply topology

1000 watts at 8 ohms over 20-20kHz, +/- 0.1 dB, <0.1% THD

1750 watts at 4 ohms over 20-20kHz, +/- 0.1 dB, <0.1% THD

Frequency response: 5Hz – 80kHz, +0/-3 dB

THD + noise: < 0.0025%

SNR (8 ohms): > 118 dB at rated power (A-weighted)

SNR (8 ohms): > 93 dB at 1 watt power (A-weighted)

Damping Factor: > 1000

Power Supply: 2.5 kVA toroidal transformer, 240,000 uF

capacitance