Classé - DELTA Pre MK II - Reference Preamplifier with HEOS Streaming
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ℹ Product Information
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 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, 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: Width 17.48 in (444 mm), Depth (including connectors) 17.64 in (448 mm), Height (including feet) 4.72 in (120 mm)
- WEIGHT: Gross Weight 41.2 lbs (18.7kg), Net Weight 29.8 lbs (13.5kg)
GENERAL
- Gain Range: -93dB to +14dB
- Channel Matching: 0.05dB
- Input Impedance (at 1kHz, BAL / SE): 50kΩ
- Output Impedance BAL / SE: 200Ω / 50Ω
- Maximum Output Level BAL / SE: 18Vrms / 9Vrms
BYPASS MODE (Analog inputs, Tone / EQ / Subwoofers disabled)
- Frequency Response (-3dB, 50Ω source impedance): 1Hz – 2MHz
- Harmonic Distortion (measurement bandwidth: 90kHz): <0.0004% at 1kHz <0.0005% at 10kHz <0.0006% at 20kHz
- Intermodulation Distortion (measurement bandwidth: 90kHz): <0.001%
- Maximum Input Level BAL / SE (at 0dB gain): 9Vrms (+21.3dBu) / 4.5Vrms (+15.3dBu)
- Signal-to-Noise Ratio (A wtd) (22kHz BW, ref 9Vrms): 130dB (133dBA)
- Crosstalk (one channel undriven) (BAL / SE): -143dB (100Hz), -140dB (1kHz), -124dB (10kHz)
PHONO SECTION (0DB GAIN, BYPASS MODE, XLR2 IN, MAIN XLR OUT)
- RIAA Deviation (20Hz-20kHz): < 0.2dB
- Selectable Load for MM Type (47k II): 50pF, 100pF, 150pF, 200pF, 250pF, 300pF, 350pF, 400pF, 450pF
- Selectable Load for MC – Low Output: 7.5Ω, 10Ω, 33Ω, 50Ω, 82Ω, 100Ω, 330Ω, 1kΩ
- Load for MC – High Output: 47kΩ
MM, MC – HIGH OUTPUT
- Gain (1kHz, 20Ω source impedance): 41.5dB
- SNR (22kHz BW, ref 5mVrms in): 86dB (93dB A-wtd)
- Max Input Level (overload ref 5mVrms): 11dB (20Hz), 23dB (1kHz), 34dB (10kHz)
MC – LOW OUTPUT
- Gain (1kHz, 20Ω source impedance, 1kΩ load): 60dB
- SNR (20Hz-20kHz): 68dB (74dB A-wtd)
- Max Input Level (overload ref 0.5mVrms, 1kΩ load): 12dB (20Hz), 31dB (1kHz), 52dB (10kHz)
DAC SECTION (DIGITAL INPUTS, TONE/EQ/SUBWOOFERS DISABLED)
- Frequency Response (-3dB, sweep Fs=192kHz): 5Hz – 90kHz
- Harmonic Distortion (measurement bandwidth: 90kHz): <0.0015% (20Hz to 20kHz)
- Dynamic range (-60dBFS, Fs=44.1kHz, A-wtd) :124dB
- Signal to Noise Ratio (Fs=44.1kHz, A-wtd) : 125dB (dBA)
DSP MODE (TONE OR EQ CONTROLS ENABLED, SET TO FLAT UNLESS NOTED)
HEADPHONE OUTPUT
- Power (nominal input. 0dB gain, 32 Ω load): 540mW
- Output Impedance: 6.8Ω
POWER REQUIREMENTS
- Standby : 0.2W
- Wake on LAN: 3.1W
- Nominal: 35W
- Max. power: 55W
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/
INPUT / OUTPUT COMPLEMENT ANALOG IN
- BAL / XLR: 2 pairs (XLR2 can be assigned as BAL phono in)
- SE / RCA: 2 pairs
- Phono RCA: 1 pair
- USB-F: 1
- USB-B: 1
- SPDIF Coaxial: 3
- SPDIF Optical: 3
- SPDIF AES / EBU: 1
- Ethernet: 1
- BAL / XLR: 5 (configurable: 2pairs+1sub, 1pair+1sub pair,…)
- SE / RCA: 5 (configurable: 2pairs+1sub, 1pair+1sub pair,…)
- DC Triggers In / Out: 2 sets
- CAN Bus: 1 set in / out
- RS-232 over RJ-45: 1
DIGITAL IN
OUTPUTS
AUTOMATION
