Classe Delta PRE Mk II Preamplifier

The Delta PRE Mk II is the foundation of your perfect system. Designed to connect to a range of sources, the PRE Mk II will exact the highest performance from every recording, whether analog or digital.

Delta PRE Mk II will deliver perfectly balanced audio to downstream Delta components.

FIDELITY

Delta PRE Mk II is the foundation of your perfect system.

Designed to connect to a range of sources, Delta PRE Mk II will extract the highest performance from every recording, whether analog or digital.

Pre-amplifiers provide clean and controlled signals to the power stage. Both precision and perfection are required, and are delivered by Delta PRE Mk II.

• Network, USB, AES/EBU, coax and optical inputs
• XLR and RCA inputs
• Short signal paths to minimise signal interference
• Custom-made Navcom® feet absorb and reduce vibrations
• High-performance onboard MC/MM Phono stage supports up to two phono inputs
• Rhodium-plated connectors for excellent and secure contacts

CONTROL

Audiophiles, recording professionals and equipment reviewers trust Classé amplifiers as a source of sonic truth. Delta Series allows listeners to experience that truth in their own homes.

Every detail of the Delta Series is perfected by hand in our unique production facility in Japan to deliver powerful, natural, expansive sound with minimal noise or distortion.

• 0.25dB volume step precision to find your perfect sound level
• Digital domain tone control with Delta PRE Tilt control
• Support for mono or stereo subwoofers for better control of bass
• Selectable frequency and slope control
• Advanced five-band digital domain parametric equalization
• Digital bypass mode available to all analog sources
• Pass thru mode 

DESIGN

As the component you’re most likely to touch, the design of Delta PRE Mk II matches its exceptional acoustic performance.

Any interaction with Delta PRE Mk II is pure pleasure, from the superb cool-to-the-touch materials, to the precise tactile feedback of the volume control.

Touchscreen control reflects Delta PRE Mk II’s outstanding capability: pure analog clarity, advanced digital precision, confident, capable power and expressive sound.

• Harmony between minimal design and unrivalled performance
• Luxurious anodized aluminum body
• Adjustable brightness, responsive touchscreen display
• Perfectly complements other components in the Delta family

ENHANCE YOUR DELTA PRE

Your Classé system deserves an upgrade. Add high-resolution streaming through HEOS® for the most optimal audio performance from any source.

Simply contact one of our certified service centers here, and our specialists will update your current Delta PRE with an upgrade kit to unlock high-resolution streaming with HEOS.

Please note, by upgrading an existing Delta PRE to Delta PRE Mk II, the unit will no longer be compatible with HDMI.

SPECIFICATIONS:

• OVERALL DIMENSIONS
• Dimensions (W x D x H): 444 x 448 x 120 mm
• Net Weight: 13.5 kg
• Gain Range: -93 dB to +14 dB
• Channel Matching: 0.05 dB
• Input Impedance (at 1 kHz, BAL / SE): 50 kΩ
• Output Impedance BAL / SE: 200 Ω / 50 Ω
• Maximum Output Level BAL / SE: 18 Vrms / 9 Vrms
• BYPASS MODE (ANALOG INPUTS, TONE / EQ / SUBWOOFERS DISABLED)
• Frequency Response: 1 Hz – 2 MHz
• Harmonic Distortion: <0.0004 % @ 1 kHz / <0.0005 % @ 10 kHz / <0.0006 % at 20 kHz
• Intermodulation Distortion: <0.001 %
• Maximum Input Level BAL / SE: 9 Vrms (+21.3 dBu) / 4.5 Vrms (+15.3 dBu)
• Signal-to-Noise Ratio (A wtd): 130 dB (133 dBA)
• Crosstalk (BAL / SE): -143 dB (100 Hz) / -140 dB (1 kHz) / -124 dB (10 kHz)
• PHONO SECTION (0DB GAIN, BYPASS MODE, XLR2 IN, MAIN XLR OUT)
• RIAA Deviation (20 Hz – 20 kHz): < 0.2 dB
• Selectable Load for MM Type (47 k II): 50, 100, 150, 200, 250, 300, 350, 400, 450 pF
• Load for MC (Low Output): 7.5, 10, 33, 50, 82, 100, 330, 1k Ω
• Load for MC (High Output): 47 kΩ
• MM, MC (HIGH OUTPUT)
• Gain: 41.5dB
• SNR: 86 dB (93 dB A-wtd)
• Max Input Level: 11 dB (20 Hz) / 23 dB (1 kHz) / 34 dB (10 kHz)
• MC (LOW OUTPUT)
• Gain: 60 dB
• SNR: 68 dB (74 dB A-wtd)
• Max Input Level: 12 dB (20 Hz), 31 dB (1 kHz), 52 dB (10 kHz)
• DAC SECTION
• Frequency Response: 5 Hz – 90 kHz
• THD: <0.0015 % (20 Hz – 20 kHz)
• Dynamic Range: 124 dB
• SNR: 125 dB (dBA)
• HEADPHONE OUTPUT
• Power (nominal input. 0dB gain, 32 Ω load): 540 mW
• Output Impedance: 6.8 Ω
• POWER REQUIREMENTS
• Standby: 0.2 W
• Wake (on LAN): 3.1 W
• Nominal: 35 W
• Max Power (with HDMI Board): 55 W
• HEOS BUILT-IN
• Network Connection: Ethernet
• USB-A Host: WMA, MP3, AAC, WAV up to 192/24, FLAC up to 192/24, AIFF up to 192/24, ALAC up to 96/24, DSF up to 11.2
• Ethernet: WMA, MP3, AAC, WAV up to 192/24, FLAC up to 192/24, AIFF up to 192/24, ALAC up to 96/24, DSF up to 11.2
• Airplay: Airplay 2
• Music Service Providers Supported (varies by region, subject to change): Spotify (Connect), Tidal (including Hi Res), Deezer, Amazon Music HD, TuneIn, Pandora, Napster, iHeartRadio, Sirus XM, Soundcloud, MOOD:MIX, AWA, QPlay, Ximalaya, Sony Hi-Res.
• DAC INPUTS
• USB-B: 32k, 44.1k, 48k, 88.2k, 96k, 176.4k, 192k, 352.8k, 384k, DSD64, DSD128, DSD256 (native – requires Thesycon/Classe driver for Windows), DSD64, DSD128 (DoP)
• SPDIF (opt, coax, AES/EBU): PCM 32k, 44.1k, 48k, 88.2k, 96k, 176.4k, 192k /DSD64 over SPDIF/
• ANALOG IN
• BAL / XLR: 2 pairs (XLR2 can be assigned as BAL phono in)
• SE / RCA: 2 pairs
• Phono RCA: 1 pair
• DIGITAL IN
• USB-F: 1
• USB-B: 1
• SPDIF Coaxial: 3
• SPDIF Optical: 3
• SPDIF AES / EBU: 1
• Ethernet: 1
• OUTPUTS
• BAL / XLR: 5 (configurable: 2pairs + 1sub, 1pair + 1sub pair etc)
• SE / RCA: 5 (configurable: 2pairs + 1sub, 1pair + 1sub pair etc)
• AUTOMATION
• DC Triggers In / Out: 2 sets
• CAN Bus: 1 set in / out
• RS-232 over RJ-45: 1