Class Delta Pre, pradinis stiprintuvas

Delta PRE yra js tobulos sistemos pagrindas. Sukurtas prisijungti prie daugybs altini, PRE tiksliausias dirba tiek analoginiais tiek skaitmeniniais kanalais.

• Dani juosta: 1Hz 2MHz.
• SNR:86dB (93dB A-wtd).
• jimo vara(prie 1kHz, BAL / SE).
• Navcom technologija paremtas pagrindas.

VIDEO

APRAYMAS

FIDELITY

Delta PRE is the foundation of your perfect system.

Designed to connect to a range of sources, Delta PRE 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.

• Network, USB, AES/EBU, coax and optical inputs with optional HDMI
• 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 Class 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 youre most likely to touch, the design of Delta PRE matches its exceptional acoustic performance.

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

Touchscreen control reflects Delta PREs 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

TECHNINIAI DUOMENYS

SPECIFIKACIJOS

OVERALL DIMENSIONS

Width17.50 in (444 mm)Depth
(including connectors)17.68 in (449 mm)Height
(including feet)4.78 in (121 mm)

WEIGHT

Gross Weight41.2 lbs (18.7kg)Net Weight29.8 lbs (13.5kg)

GENERAL

Gain Range-93dB to +14dBChannel Matching0.05dBInput Impedance (at 1kHz, BAL / SE)50kOutput Impedance BAL / SE200 / 50Maximum Output Level BAL / SE18Vrms / 9Vrms

BYPASS MODE
(ANALOG INPUTS, TONE / EQ / SUBWOOFERS DISABLED)

Frequency Response
(-3dB, 50 source impedance)1Hz 2MHzHarmonic Distortion
(measurement bandwidth: 90kHz)<0.0004% at 1kHz
<0.0005% at 10kHz
<0.0006% at 20kHzIntermodulation 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)< 0.2dBSelectable Load for MM Type (47k II)50pF, 100pF, 150pF, 200pF, 250pF, 300pF, 350pF, 400pF, 450pFSelectable Load for MC
Low Output7.5, 10, 33, 50, 82, 100, 330, 1kLoad for MC High Output47k

MM, MC HIGH OUTPUT

Gain (1kHz, 20 source impedance)41.5dBSNR (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, 20 source impedance,
1k load)60dBSNR (20Hz-20kHz)68dB (74dB A-wtd)Max Input Level
(overload ref 0.5mVrms, 1k load)12dB (20Hz), 31dB (1kHz), 52dB (10kHz)Power
(nominal input, 0dB gain, 32 load)540mWOutput Impedance6.8

FILE FORMATS
AND SAMPLE RATES SUPPORTED

USB-F44.1k, 48k, 88.2k, 96k (iOS specific)USB-B32k, 44.1k, 48k, 88.2k, 96k, 176.4k,
192k, 352.8k, 384k
DSD64, DSD128, DSD256 (native
requires Thesycon/Classe driver for
Windows) DSD64, (DoP)EthernetWAV, 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 / XLR2 pairs (XLR2 can be assigned as
BAL phono in)SE / RCA2 pairsPhono RCA1 pair

DIGITAL IN

HDMI
*(optional)4* (HDMI 2.0b w/HDCP 2.2)USB-F1USB-B1SPDIF Coaxial3SPDIF Optical3SPDIF AES / EBU1Ethernet1

OUTPUTS

HDMI
*(optional)1* (HDMI 2.0b w/HDCP 2.2)BAL / XLR5 (configurable: 2pairs+1sub,
1pair+1sub pair,)SE / RCA5 (configurable: 2pairs+1sub,
1pair+1sub pair,)

AUTOMATION

DC Triggers In / Out2 setsCAN Bus1 set in / outRS-232 over RJ-451