Chord Alto Professional Headphone And Speaker Amplifier

The Alto is a compact powerhouse that defies its stature. At the heart of the Alto lies our world-class ULTIMA topology. This sophisticated dual-feed-forward error-correction technology monitors and refines the audio signal in real-time, eliminating distortion. The result is a breathtakingly transparent, lifelike performance with all the hallmarks of our larger ULTIMA amplifiers.

The Alto is designed to be the versatile centrepiece of many a modern hi-fi se-up. Featuring four front-mounted outputs, including a 4.4 mm for the latest high-end headphones, the Alto is ideal whether you are conducting an A/B comparison of your favourite pairs or enjoying a late-night or personal listening session.

For loudspeakers, the Alto provides 40 W of pure ULTIMA power (4 ohms). It brings incredible speed and clarity to speakers, making it the ideal partner for a luxury desktop or bedroom system.

The Alto’s elegant, compact footprint, barely larger than an A5 sheet, allows it to integrate seamlessly into any environment. From dedicated hi-fi racks to desktops and more, its understated British design and premium rear-panel banana plug terminals ensure it looks as refined as it sounds.

Key features

ULTIMA technology: Award-winning error-correction for unparalleled clarity.

4.4 mm output Versatile 4.4 mm output

Multi-user Drive up to four pairs of headphones simultaneously.

Stereo versatility: Seamlessly switch between high-end headphones and loudspeakers.

Features:

Inputs:

1 x set of XLR inputs

1 x set of RCA inputs

Outputs:

4x headphone outputs (1×3.5mm, 1x 4.4mm balanced jack*, 2×1/4”) *pseudo balanced as the amplifier itself is not a balanced design

1 x pair of banana sockets for speakers

1 x pair of XLR for additional volume control or signal passthrough

1 x 12V DC Jack output for use with other products.

Technical Spec

Output power (Speakers):

50 W into 4 Ω

Output power (Headphones):

2250 mW into 100 Ω

THD (Speakers):

0.003 % into 4 Ω

THD (Headphones):

0.001 % into 100 Ω

Signal-to-noise:

120 dB

Frequency response:

6 Hz – 60 kHz

Input maximum voltage:

6 V RMS

Crosstalk:

-95 dB

Output maximum voltage:

15 V RMS into 8 Ω

Operation voltage:

80-250 V AC auto-switching

Dimensions:

Length 215 mm, Width 200 mm Height 57 mm

Net weight:

1946 g