Classé Delta Pre - Stereo Preamplifier with Integrated Phono - CALL FOR PRICE

Dimensions

• Width 444 mm
• Depth (including connectors) 449 mm
• Height (including feet) 121 mm

General characteristics

• 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)

Headphone Output

• Power (nominal input. 0dB gain, 32 Ω load) 540mW
• Output Impedance 6.8Ω

File formats and sample rates supported

• USB-F 44.1k, 48k, 88.2k, 96k (iOS specific)
• 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, (DoP)
• Ethernet WAV, AIFF, ALAC, FLAC, WMA, AAC, MP3, OGG_VORBIS (max 192k/24b) DSD64, (DoP)
• SPDIF (opt, coax, AES / EBU) PCM 32k, 44.1k, 48k, 88.2k, 96k, 176.4k, 192k / DSD64

Input / Output Complement analog it

• BAL / XLR 2 pairs (XLR2 can be assigned as BAL phono in)
• IF / RCA 2 pairs
• Phono RCA 1 pair

Digital in

• HDMI *(optional) 4* (HDMI 2.0bw/HDCP 2.2)
• USB-F1
• USB-B 1
• SPDIF Coaxial 3
• SPDIF Optical 3
• SPDIF AES / EBU 1
• Ethernet 1

Outputs

• HDMI *(optional) 1* (HDMI 2.0bw/HDCP 2.2)
• BAL / XLR 5 (configurable: 2pairs+1sub, 1pair+1sub pair,…)
• SE / RCA 5 (configurable: 2pairs+1sub, 1pair+1sub pair,…)

Automation

• DC Triggers In/Out 2 sets
• CAN Bus 1 set in / out
• RS-232 over RJ-45 1