Resolution Audio Opus 21 specifications

The "OPUS 21" system from the US manufacturer Resolution Audio consists of a CD player with an extension by a power amplifier (2 variants with 2x 30 W or 2x 80 W) and an extension module for tuner and phono. The CD player consists of 2 modules, a central power supply with digital display and the CD player with D/A converter. The individual modules are stacked on top of each other and connected to each other via a plug connection attached to the housing.

This results in various configuration options:

General

Connections (power supply unit)

Connections (CD player module)

Connections (expansion module)

Connections (power amplifier module)

Tech nical data ( CD player module)

Tech nical data (extension module -Tuner / Phono)

Tech nical data (power amplifier module)

Special equipment

Other models of the same series:

http://www.resolutionaudio.com/?page_id=546

https://www.reson.ch/screen/product/s30upgrade

https://www.6moons.com/audioreviews/resolution/opus21.html

CD player
CD player with power amplifier (volume adjustable)
CD player with preamplifier/expansion module (tuner and phono)
CD player with preamplifier/expansion module and power amplifier (2x 30 W or 2x 80 W)

Manufacturer: Resolution Audio
Model: OPUS 21
Years of construction: 2003 - ?
Made in: USA
color: silver, black, silver/black, black/silver
remote control: Yes
power consumption:
dimensions: 24.0 cm x 25.0 cm x 7.5 cm
weight: 9 kg (packing in wooden box)
the price of the manufacturer (CD-Player + power supply) approx.:
the price of the manufacturer (expansion module Tuner/Phono): approx.
the price of the manufacturer (power amplifier 30 W): approx.
factory price (amp 80 W): approx.

number of inputs:
- power supply
  - network 3-Pole power switch and main fuse (200-240 VAC> 800 mA)
number of outputs:
- System
  - OPUS Powerlink, power amplifier via a 4-pin XLR
  - OPUS 21 System (25-pin female, for display and control)

power supply
- network 3-Pole power switch and main fuse (200-240 VAC> 800 mA)

network 3-Pole power switch and main fuse (200-240 VAC> 800 mA)

System
- OPUS Powerlink, power amplifier via a 4-pin XLR
- OPUS 21 System (25-pin female, for display and control)

OPUS Powerlink, power amplifier via a 4-pin XLR
OPUS 21 System (25-pin female, for display and control)

number of inputs:
- Digital
  - 1x S/PDIF (RCA Phono, 75 Ohm , 32-96kHz / 16-24-Bit internal D/A Converter)
- System
  - OPUS 21 System (for display and control)
number of outputs:
- Analog
  - 1x Analog (RCA to RCA)
  - 1x Analog (XLR balanced)
  - 1x Analog (DIN)

Digital
- 1x S/PDIF (RCA Phono, 75 Ohm , 32-96kHz / 16-24-Bit internal D/A Converter)
System
- OPUS 21 System (for display and control)

1x S/PDIF (RCA Phono, 75 Ohm , 32-96kHz / 16-24-Bit internal D/A Converter)

OPUS 21 System (for display and control)

Analog
- 1x Analog (RCA to RCA)
- 1x Analog (XLR balanced)
- 1x Analog (DIN)

1x Analog (RCA to RCA)
1x Analog (XLR balanced)
1x Analog (DIN)

number of outputs: 4
- Analog:
  - 1x Analog output, variable (RCA to RCA)
  - 1x Analog output, fixed (RCA to RCA)
- Digital:
  - 1x Digital Out (RCA Phono) for the connection of digital sources to the D/A Converter in the CD Player module
- headset:
  - 1x headphone 6.4 mm, 10 Ohm impedance
- Link:
  - 1x direct connection to OPUS 21 power amp via 4-Pole XLS plug
number of inputs: 4 x Phono, 2x Analog, 1x USB, 4x digital, 2x antenna
- Phono:
  - 1x MM Phono, 47 kω / 330 pF impedance / 40 dB (DIN connector) or
  - 1x MM Phono, 47 kω / 330 pF impedance / 40 dB (RCA to RCA)
  - 1x MC Phono, 1 kOhm / 6800 pF impedance / 65 dB (DIN connector), or
  - 1x MC Phono, 1 kOhm / 6800 pF impedance / 65 dB (RCA to RCA)
- analogue:
  - 2x Line Level analog input
- Digital:
  - 1x USB digital input (USB host 2.0, Standard USB "B" cable (Windows or MAC OS)
  - 2x Coaxial digital input (75 Ohm ) (96 kHz / 24-bit)
  - 2x Optical digital input (Toslink S/PDIF ) (96 kHz / 24-bit)
- antenna:
  - 1x MW antenna (ON)
  - 1x FM antenna (FM)

Analog:
- 1x Analog output, variable (RCA to RCA)
- 1x Analog output, fixed (RCA to RCA)
Digital:
- 1x Digital Out (RCA to RCA) for connection of digital sources to the D/A Converter in the CD Player module
headset:
- 1x headphone 6.4 mm, 10 Ohm impedance
Link:
- 1x direct connection to OPUS 21 power amp via 4-Pole XLS plug

1x Analog output, variable (RCA to RCA)
1x Analog output, fixed (RCA to RCA)

1x Digital Out (RCA to RCA) for connection of digital sources to the D/A Converter in the CD Player module

1x headphone 6.4 mm, 10 Ohm impedance

1x direct connection to OPUS 21 power amp via 4-Pole XLS plug

Phono:
- 1x MM Phono, 47 kω / 330 pF impedance / 40 dB (DIN connector), or
- 1x MM Phono, 47 kω / 330 pF impedance / 40 dB (RCA to RCA)
- 1x MC Phono, 1 kOhm / 6800 pF impedance / 65 dB (DIN connector), or
- 1x MC Phono, 1 kOhm / 6800 pF impedance / 65 dB (RCA to RCA)
Analog:
- 2x Line Level analog input
Digital:
- 1x USB digital input (USB host 2.0, Standard USB "B" cable (Windows or MAC OS)
- 2x Coaxial digital input (75 Ohm ) (96 kHz / 24-bit)
- 2x Optical digital input (Toslink S/PDIF ) (96 kHz / 24-bit)
antenna:
- 1x MW antenna (ON)
- 1x FM antenna (FM)

1x MM Phono, 47 kω / 330 pF impedance / 40 dB (DIN connector), or
1x MM Phono, 47 kω / 330 pF impedance / 40 dB (RCA to RCA)
1x MC Phono, 1 kOhm / 6800 pF impedance / 65 dB (DIN connector), or
1x MC Phono, 1 kOhm / 6800 pF impedance / 65 dB (RCA to RCA)

2x Line Level analog input

1x USB digital input (USB host 2.0, Standard USB "B" cable (Windows or MAC OS)
2x Coaxial digital input (75 Ohm ) (96 kHz / 24-bit)
2x Optical digital input (Toslink S/PDIF ) (96 kHz / 24-bit)

1x MW antenna (ON)
1x FM antenna (FM)

number of inputs: 3 (+ 2 system inputs)
- Analog:
  - Analog input 1 (XLR Balanced, 20 Vrms max, 20 kOhm )
  - Analog input 2 (RCA to RCA. 10 Vrms max, 10 kOhm )
  - Analog Input 3 (RCA RCA. 10 Vrms max, 10 kOhm )
- System:
  - RS 232
  - Opus Power Link (4 Pin XLR ) for OPUS 21 cables
Number of Outputs: 1 (+1 optional)
- Speaker output (optional) with cable terminal for cables with Plug
- Speaker output for 4 mm bananas (3-pole: R / L / ground)

Analog:
- Analog input 1 (XLR Balanced, 20 Vrms max, 20 kOhm )
- Analog input 2 (RCA RCA. 10 Vrms max, 10 kOhm )
- Analog Input 3 (RCA RCA. 10 Vrms max, 10 kOhm )
System:
- RS 232
- Opus Power Link (4 Pin XLR ) for OPUS 21 Cable

Analog Input 1 (XLR Balanced, 20 Vrms max, 20 kOhm )
Analog Input 2 (RCA RCA . 10 Vrms max, 10 kOhm )
Analog Input 3 (RCA RCA. 10 Vrms max, 10 kOhm )

RS 232
Opus Power Link (4 pin XLR ) for OPUS 21 cables

Speaker output (optional) with cable terminal for cables with fork plug
Speaker output for 4 mm bananas (3-pole: R / L / ground)

Converter:
Frequency response:
Dynamic range:
Signal-to-noise ratio:
Total harmonic distortion:
Channel separation:
CD text: no
MP3 support: no
Pitch control:
Automatic playback:
Shuffle:
Track programming:
Repeat: yes
Plays CD-R/CD-RW/HDCD: N/A

Reception: VHF, MW, LW
Frequencies:
- VHF:
- MW:
- LW:
- Frequency response:
- Input sensitivity:
- Total harmonic distortion:
- Signal-to-noise ratio:
- Channel separation:
- Selectivity:
- Common-wave selection:
- Side-wave selection:
- Mirror frequency attenuation:
- ZF - Attenuation:
- AM- Suppression:
- Output level:
- RDS: yes
- Station memory: yes
VHF:
MW:
LW: