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 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 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 PRE’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.

ABMESSUNGEN

Breite
444 mm (17,50 Zoll)
Tiefe
(inklusive Anschlüsse)
1449 mm (17,68 Zoll)
Höhe
inklusive Füße
121 mm (4,78 Zoll)

GEWICHT

Bruttogewicht
18,7kg
Nettogewicht
13,5kg

ALLGEMEINES

Lautstärkeeinstellung
‚-93dB bis +14dB
Kanalgleichheit
0,05dB
Eingangsimpendanz (bei 1kHz, BAL / SE)
50kΩ
Ausgangsimpendanz BAL / SE
200Ω / 50Ω
Maximaler Ausgangspegel BAL / SE
18Vrms / 9Vrms

BYPASS MODUS
(ANALOGE EINGÄNGE, TON / EQ / SUBWOOFER DEAKTIVIERT)

Frequenzgang
(-3dB, 50Ω Quellenimpendanz)
1Hz – 2MHz
Harmonische Verzerrung
(Messbandbreite: 90kHz)
<0,0004% at 1kHz <0,0005% at 10kHz <0,0006% at 20kHz
Intermodulation Verzerrung
(Messbandbreite: 90kHz)
<0,001%
Maximaler Eingangspegel BAL / SE
(bei 0dB Verstärkung)
9Vrms (+21,3dBu) /
4.5Vrms (+15,3dBu)
Signal/Rauschabstand (A wtd)
(22kHz BW, ref 9Vrms)
130dB (133dBA)
Übersprechdämpfung
(ein Kanal nicht angesteuert) (BAL / SE)
-143dB (100Hz), -140dB (1kHz),
-124dB (10kHz)

PHONO SEKTION
(0DB VERSTÄRKUNG, BYPASS MODUS, XLR2 IN, MAIN XLR OUT)

RIAA Abweichung (20Hz-20kHz)
< 0.2dB
Wählbare Eingangskapazität für Typ MM (47k Ohm)
50pF, 100pF, 150pF, 200pF, 250pF, 300pF, 350pF, 400pF, 450pF
Wählbarer Eingangswiderstand für MC Low
– Geringer Ausgangspegel
7.5Ω, 10Ω, 33Ω, 50Ω, 82Ω, 100Ω, 330Ω, 1kΩ
Eingangsimpedanz für MC High – Hoher Ausgangspegel
47kΩ

MM, MC HIGH - HOHER AUSGANGSPEGEL

Verstärkung (1kHz, 20Ω Quellenimpedanz)
41.5dB
SNR (22kHz BW, ref 5mVrms in)
86dB (93dB A-wtd)
Max Eingangspegel
(Überlast ref 5mVrms)
11dB (20Hz), 23dB (1kHz), 34dB (10kHz)

MC LOW- NIEDRIGER AUSGANGSPEGEL

Verstärkung (1kHz, 20Ω Quellenimpedanz,
1kΩ laden)
60dB
SNR (20Hz-20kHz)
68dB (74dB A-wtd)
Max Eingangspegel
(Überlast ref 0.5mVrms, 1kΩ Last)
12dB (20Hz), 31dB (1kHz), 52dB (10kHz)

KOPFHÖRERAUSGANG

Ausgangsleistung für Kopfhörer
(Nenneingang, 0dB Verstärkung, 32Ω Last)
540mW
Ausgangsimpedanz
6.8Ω

DATEI-FORMATE
UND UNTERSTÜTZTE ABTASTRATEN

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 (nativ –
benötigt Thesycon/Class Treiber für
Windows) DSD64, (DoP)
Ethernet
WAV, AIFF, ALAC, FLAC, WMA, AAC,
MP3, OGG_VORBIS (höchstens 192k/24b)
DSD64, (DoP)
SPDIF
(Optisch, Koax, AES / EBU)
PCM 32k, 44,1k, 48k, 88,2k, 96k,
176.4k, 192k / DSD64

EIN- UND AUSGÄNGE
ANALOG IN

BAL / XLR
2 Paar (XLR2 kann als
BAL-Phono in konfiguriert werden)
SE / RCA
2 Paar
Phono-RCA
1 Paar

DIGITAL IN

HDMI
4* (HDMI 2.0b m/HDCP 2.2)
USB-F
1
USB-B
1
SPDIF koaxial
3
SPDIF optisch
3
SPDIF AES / EBU
1
Ethernet
1

AUSGÄNGE

HDMI
1* (HDMI 2.0b m/HDCP 2.2)
BAL / XLR
5 (konfigurierbar: 2Paare+1Sub,
1Paar+1 Subwoofer-Paar,…)
SE / RCA
5 (konfigurierbar: 2Paare+1Sub,
1Paar+1 Subwoofer-Paar,…)

AUTOMATIK

DC-Trigger In / Out
2 Sets
CAN-Bus
1 Set ein / aus
RS-232 über RJ-46
1

REVIEWS

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