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- Chord Alto
Chord Alto
Professional Series Headphone & Speaker Amplifier
- Headphone and nearfield monitor amplifier
- Capable of driving up to four pairs of headphones and smaller loudspeakers
- Four fascia-mounted headphone outputs, powered ULTIMA technology
- Dual-feed-forward error-correction technology
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Chord Alto
Pro Audio
Professional headphone and speaker amplifier
The new Alto professional headphone and speaker amplifier distils Chord Electronicsโ 35-year UK amplifier manufacturing history into a highly transparent amplifier. Containing ULTIMA technology, Alto is the most versatile amplifier available to the professional market.
Are you a professional or want to see how our equipment is utilised in the recording process? Why not have a look at our professional page here:

The Alto is a technology-rich pro audio headphone and nearfield monitor amplifier capable of driving up to four pairs of headphones. The Alto is the perfect tool for monitoring in todayโs high-resolution environment. It offers 50 watts per channel for nearfield monitoring, plus enough drive for its four headphone outputs simultaneously, via one front-panel 3.5 mm, one 4.4mm balanced jack and two 6.35
mm outputs.
Designed to fit into 19-inch racking, the 1U-tall Alto also benefits from both balanced and unbalanced inputs, plus a pair of balanced XLR outputs for bypass/external monitor control.

Headphone or Monitor Amplifier
The Alto is a meticulously designed headphone and nearfield monitor amplifier, capable of driving up to four pairs of headphones and smaller loudspeakers. Notably, it marks our first product to include a 4.4 mm Pentaconn TRRRS output (pseudo balanced), catering to the increasing popularity of balanced transmission in high-end headphones.

A/B Simultaneous Outputs
The Alto features four fascia-mounted headphone outputs, powered ULTIMA technology. It features one 3.5 mm output; two 6.35 mm (1/4-inch); plus a single 4.4 mm Pentaconn. The array of outputs, not only facilitates easy A/B comparisons, but also allows multiple users to listen simultaneously.

The Altoโs ULTIMA topology introduces the companyโs dual-feed-forward error-correction technology, which monitors and then immediately corrects signalsbeforethe output stage.
Compact yet powerful, the Altoโs dimensionsโslightly larger than A5โmake it easy to place in any audio system, including desktop set-ups, living spaces and dedicated hi-fi systems.


Technical Details
Output Speakers
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50 W into 4 ฮฉ
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0.003 % into 4 ฮฉ
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120 dB
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6 Hz โ 60 kHz
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6 V RMS
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-95 dB
Output Headphones
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2250 mW into 100 ฮฉ
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0.001 % into 100 ฮฉ
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120 dB
-
6 Hz โ 60 kHz
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6 V RMS
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-95 dB
Other Details
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15 V RMS into 8 ฮฉ
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80-250 V AC auto-switching
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Length 215 mm, Width 200 mm Height 57 mm
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1946 g