CHORD ULTIMA Pro Stereo 350W Power Amplifier User Manual

: August 8, 2024
: chord

Table of Contents

CHORD ULTIMA Pro Stereo 350W Power Amplifier
Product Usage Instructions
FAQ
Introduction
Support and warranty
Connections and controls
Operation
Technical specifications
Documents / Resources

CHORD ULTIMA Pro Stereo 350W Power Amplifier

Specifications

Dimensions: Not specified
Frequency response: 5 Hz – 180 kHz (0.0 to 0.15 / +0.0 to – 2.9 dB)
Output power (RMS): 350W
Signal-to-noise ratio: Not specified
THD: Not specified
Output Impedance: Not specified

Product Usage Instructions

Introduction

Ensure the ULTIMA Pro Stereo is used in a well-ventilated setting, away from direct sunlight and heat sources, and has sufficient space around the unit.

Connections and Controls

Right channel speaker outputs (A)
Grounding post (D)
Left channel speaker outputs (G)
Pair of RJ45 network sockets for future upgrades (B)
15A IEC AC Inlet (C)
Left balanced XLR input (E)
Right-balanced XLR input (F)
Power button (H)
If using ULTIMA Pro in a rack-mountable system, the feet are removable for ease of use. Unscrew to remove the feet.
Warning: Ensure all system devices are switched off and any volumes are set to zero before making any connections.

Operation

To power on ULTIMA Pro Stereo, press the large power button once until you feel a click. The power button will change to a green color during initial safety checks and then to teal once passed.

Input Selection

ULTIMA Pro Stereo is equipped with balanced XLR and unbalanced RCA inputs. Only one input must be used as there is no switching ability.

Output Selection

Connect ULTIMA Pro Stereo to speakers using high-quality loudspeaker cable with 4mm banana plugs or 6mm spades. Avoid using bare wire.

Additional Notes

Only wire speakers between red and black terminals. If the amplifier enters protection mode, unplug the mains cable, wait for 30 seconds, and then re-insert.

FAQ

Q: How do I reset the amplifier if it enters protection mode?

A: Unplug the mains cable, leave it unplugged for 30 seconds, and then re-insert it.

Introduction

The ULTIMA PRO STEREO is a British-made high-performance, no-compromise stereo power amplifier, with effortless power reserves.
With an all-new ultra-low-noise circuit topology finessed over three decades, the ULTIMA PRO STEREO is a thoroughly modern amplifier with time-proven fit-and-forget performance and reliability.
Featuring dual-feed-forward error-correction technology, proprietary power supply tech, and active intelligent cooling, the ULTIMA PRO STEREO is the perfect tool for working with today’s high-resolution audio.
In addition, its ruler-flat frequency response neither adds to or takes away from the original musical performance.

Safety and care

Do not allow the device to come into contact with water or liquids.
Do not spray cleaning products onto the device. Use a clean microfibre cloth to clean the casework.
A further safety document is included in the box.
The device does not contain any user-serviceable components. Do not attempt to open, dismantle, or apply internal third-party devices to it. Doing so will void the warranty.
The device benefits from extensive casework ventilation, however, always ensure the ULTIMA Pro stereo is used in a well-ventilated setting, away from direct sunlight and heat sources, and has sufficient space around the unit.

Support and warranty

5 FIVE YEAR WARRANTY

For support, please contact the supplying retailer or if you purchased through Chord Electronics you can send us an email at: pro@chordelectronics.co.uk
At the point of sale, Chord Electronics Ltd. provides the ULTIMA pro stereo with a comprehensive five-year warranty, which covers defects in materials and workmanship through fair usage.
The warranty is transferable with proof of purchase, however, the warranty on ex-demonstration units begins from the retailer‘s date of purchase. Warranty claims must be made via the supplying retailer.

Connections and controls

Rear and front panels

If you’re using ULTIMA Pro in a rack-mountable system, the feet are removable for ease of use, unscrew to remove the feet.
WARNING: Ensure all system devices are switched off and any volumes are set to zero before making any connections.

Operation

WARNING: Always set the volume to zero before switching on/playback and before connecting/ removing headphones/speakers.

Power on/off

To power on the ULTIMA Pro stereo press the large power button once until you feel a click. The power button will now change to a green color whilst it begins its initial safety checks.
Once the amplifier has passed the safety check, the power button will display a teal color.

Input selection

ULTIMA Pro stereo is equipped with both balanced XLR inputs as well as unbalanced RCA inputs
ULTIMA Pro stereo cannot switch between the inputs therefore, only one must be used.

Output selection

In order to connect ULTIMA Pro stereo to speakers, use high-quality loudspeaker cable terminated with 4mm banana plugs or 6mm spades. Bare wire can be used, but it is not recommended.
Below is a useful guide that you can print out to use with the unit.
If the amplifier enters protection mode, please unplug the main cable, leave it for 30 seconds, and re-insert it.

Technical specifications

Dimensions 483 mm (W) x 176 mm (H) x 377 mm (D) (1 ½ Rackmount)
Frequency response 5 Hz – 180 kHz (0.0 to 0.15 / +0.0 to – 2.9 dB)
Output power (RMS) 350W <1% THD 4Ω
- 500W <1% THD 4Ω
- 750W <1% THD 4Ω
Signal-to-noise ratio -84 dB (A-weighted)
THD 5 Hz – 20 kHz 0.0008% to 0.003%
Output Impedance 0.090 Ω
The Pumphouse, Farleigh Lane, East Farleigh, Kent,
ME16 9NB. Great Britain.
+44 (0) 1622 721 444
info@chordelectronics.co.uk
chordelectronics.co.uk

Documents / Resources

| CHORD ULTIMA Pro Stereo 350W Power Amplifier [pdf] User Manual
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