Oracle Audio PH100 MkII Phono Preamplifier

The Oracle Audio PH100 MkII phono preamplifier brings full MM and MC cartridge compatibility to a compact, internally powered chassis, giving you the flexibility to match virtually any phono cartridge on the market. With six selectable MC loading options ranging from 100 ohms to 47k ohms and three gain settings from 41.5dB to 62dB, the PH100 MkII handles everything from high-output moving magnets to ultra-low-output moving coils with precision.

The PH100 MkII is the entry point in Oracle's Paris phono preamplifier line, and the important detail is that it shares the same RIAA equalization circuit and analog amplifying modules as the PH200. You're not getting a stripped-down circuit at this price. You're getting Oracle's core phono topology with a simpler power supply implementation. At $1,155, it competes with the Sutherland Insight, Graham Slee Reflex, and similar mid-tier phono stages, but with the advantage of six MC loading options and three gain settings that let you properly match virtually any cartridge. We recommend the PH100 MkII to customers building their first serious vinyl system or stepping up from an entry-level phono stage. If you're pairing it with an Origine or Paris turntable, this is the phono preamp that was designed alongside them.

Key Features of the Oracle Audio PH100 MkII

• MM and MC Cartridge Compatibility: Dedicated circuitry for both moving magnet and moving coil cartridges, covering the full range of phono cartridge types available today.
• Six-Position MC Loading: Selectable input impedance at 100, 200, 511, 1k, 1.5k, and 47k ohms lets you precisely match the electrical requirements of your moving coil cartridge for optimal frequency response and dynamics.
• Three Gain Settings: MC gain is selectable at 41.5dB, 52dB, or 62dB, accommodating everything from high-output moving coils to the most demanding low-output designs. MM gain is fixed at 41.5dB at the standard 47k ohm impedance.
• Shared RIAA Circuitry with PH200: The PH100 MkII uses the same analog amplifying modules and RIAA equalization circuit found in Oracle's higher-end PH200, ensuring consistent tonal accuracy across the Paris phono line.
• Internal Power Supply: A carefully engineered internal power supply eliminates the need for an external box, keeping the footprint compact while still delivering clean, regulated power to the audio circuits.
• Jumper-Based Configuration: Loading and gain adjustments are made via internal jumpers, keeping noise-inducing mechanical switches out of the signal path entirely.
• Wooden Frame Chassis: The signature Paris series wooden frame provides both visual warmth and effective vibration isolation, setting the PH100 MkII apart from generic metal-box phono stages.
• Low Noise Performance: Signal-to-noise ratio exceeds -80dB, ensuring a quiet background that lets your cartridge's output speak clearly.

Circuit Design and RIAA Equalization

The PH100 MkII employs a two-stage amplification topology. The first stage amplifies the faint signal from the phono cartridge and feeds it into the RIAA equalization circuit, which applies the inverse of the RIAA recording curve to restore flat frequency response. The second stage amplifies the corrected signal to the output level required by your preamplifier or integrated amplifier. Oracle uses the same analog amplifying modules in both the PH100 MkII and the PH200, meaning the core signal path is identical between the two models. The difference lies in the power supply implementation and the specific operational amplifiers used on the amplifying modules. Frequency response is rated at 20Hz to 20kHz within +/- 1dB, and total harmonic distortion stays below 0.05% across that same range.

Cartridge Matching and Loading Options

Getting the impedance loading right is one of the most important steps in setting up a phono stage, and the PH100 MkII gives you the tools to do it properly. Moving magnet cartridges connect at the standard 47k ohm impedance with 150pF input capacitance. Moving coil cartridges benefit from six impedance settings (100, 200, 511, 1k, 1.5k, and 47k ohms) that can be matched to the cartridge manufacturer's recommended load for optimal performance. The three gain levels (41.5dB, 52dB, and 62dB) ensure proper signal level whether you're using a high-output MC that puts out 2mV or an ultra-low-output design producing as little as 0.2mV. All adjustments are made through clearly labeled jumpers accessible inside the chassis, so once you set it, it stays put.

Internal Power Supply Design

Where the PH200 uses an external power supply to achieve maximum isolation from the audio circuits, the PH100 MkII takes a different approach with a carefully designed internal supply. Oracle invested significant engineering effort into this power supply circuit, understanding that it is directly responsible for the PH100 MkII's performance and musicality. The internal design keeps the overall system compact, requiring only a single chassis on your rack, while still delivering the clean, regulated voltage the analog circuits demand. For listeners who prioritize simplicity and a smaller footprint without sacrificing Oracle's core analog performance, the PH100 MkII strikes the right balance.

Build Quality and Finish Options

The PH100 MkII shares the same signature wooden frame chassis design as the PH200, carrying the distinctive visual identity of Oracle's Paris component line. The wooden frame is not just aesthetic. It provides a degree of natural vibration damping that rigid metal enclosures do not. The unit measures 9.5 x 12.25 x 2.25 inches (W x D x H), fitting comfortably on standard audio racks. Two finish options are available: Textured Matte Black for a classic, understated look, and Black with Brushed Aluminum for a front panel that adds a touch of contrast. Like all Oracle products, the PH100 MkII is built to order in their Quebec, Canada facility.

Where the PH100 MkII Fits in the Oracle Phono Lineup

The PH100 MkII is the entry point in Oracle's Paris phono preamplifier line. It shares the same RIAA circuitry and analog modules as the PH200, making it an excellent choice for listeners who want Oracle's analog expertise without the higher investment of the PH200. The key differences between the two are the PH200's external toroidal power supply, its additional signal regulation stage before the RIAA circuit, and its use of higher-grade operational amplifiers on the amplifying modules. If you're starting with an Oracle turntable or building a dedicated vinyl playback system on a budget, the PH100 MkII delivers the fundamentals at a compelling price. And if your system grows, moving up to the PH200 later is a natural, complementary upgrade.

Explore the Full Oracle Audio Phono Range

Oracle's Paris phono preamplifier line offers two tiers of performance to match your system and budget. Both models share the same core circuitry and are built to order in Quebec, Canada.

• Oracle Audio PH200 Phono Preamplifier - Oracle's higher-tier phono stage with external toroidal power supply, additional signal regulation, and upgraded operational amplifiers for maximum performance.
• Oracle Audio Origine Mk2 Turntable - Oracle's entry-level turntable with a unipivot tonearm, an ideal partner for the PH100 MkII.
• Oracle Audio Delphi Mk VII Classic Turntable - Oracle's flagship turntable platform, available in Classic, Reference, and Signature configurations.

The Listening Room Difference

We're a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you're visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don't just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.

Oracle Audio PH100 MkII Specifications