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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"Classé's new Delta PRE and STEREO amplifiers are a technical tour de force, with flawless performance. There is no aspect of the sonic performance that I can criticise. This combination has abilities well beyond the asking price, so is heartily recommended." — Mark Gusew Read More...
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"The latest Classe Delta amps are a triumph, combining a hugely flexible and ultra clean-sounding preamplifier with power amplifiers as capable of mighty clout as they are revealing of the smallest of detail" — Andrew Everard Read More...
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"Regardless of what others may be doing, in my opinion, no other audio company offers this combination of operational flexibility, high-quality parts, thoughtful design, build quality, and faithfulness to the performance of music. Well done, Classé!" — Dave Thomas Read More....
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"Classé Audio’s Delta PRE is one of the most feature-laden yet ergonomically enjoyable products I’ve reviewed in some time." — Aron Garrecht Read more...
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"Classé’s Delta PRE and STEREO are impeccably designed and manufactured products that offer impressive operational flexibility and dependability. These two components are visually appealing and practical to install in a domestic setting. The Delta PRE and STEREO were a pleasure to operate and, more importantly, to listen to." - Andrew Quint Read More
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"A first-class demonstration from A to Z: there is hardly a better way to sum up the presentation of the new Classé Delta preamplifiers and power amplifiers." - Martin Freund Read More...