Classe Audio Delta Pre Preamplifier image
Classe Audio Delta Pre Preamplifier image
Classe Audio Delta Pre Preamplifier image
Classe Audio Delta Pre Preamplifier image
Classe Audio Delta Pre Preamplifier image
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Classe Audio Delta Pre Preamplifier zoom image

Classe Audio Delta Pre Preamplifier

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MODEL: Delta Pre
IN STOCK | CONDITION: New
WARRANTY: 1 Year Warranty
COLOR
black Classe Audio Delta Pre Preamplifier color image
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Product Description

  • Features a network, USB, AES/EBU, coax and optical inputs with optional HDMI and XLR and RCA inputs.
  • Short signal paths to minimise signal interference
  • Custom-made Navcom feet absorb and reduce vibrations.
  • Comes with a high-performance onboard MC/MM Phono stage supports up to two phono inputs.
  • Features a 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.
IN THE BOX
Sales Package Delta Pre Preamplifier and User Documentation
General
BrandClasse-Audio
ModelDelta Pre
Colorblack
Specifications
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)

Power (nominal input, 0dB gain, 32Ω 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 IN
BAL / XLR: 2 pairs (XLR2 can be assigned as BAL phono in)

SE / RCA: 2 pairs

Phono RCA: 1 pair
OUTPUTS
HDMI *(optional): 1* (HDMI 2.0b w/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
Dimension
Width
17.50 in (444 mm)
Depth
(including connectors)
17.68 in (449 mm)
Height
(including feet)
4.78 in (121 mm)
Gross Weight
41.2 lbs (18.7 kg)
Net Weight
29.8 lbs (13.5 kg)
Warranty
Warranty TypeManufacturers
Warranty Period1 Year

Additional Info

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