Boulder 808 Phono Preamplifier – New phono stage for the Boulder 800 Series

Boulder Amplifiers was founded more than 40 years ago near Boulder, Colorado, with early roots in the broadcast and recording sectors, where neutrality, transparency and long-term reliability were not marketing phrases but working requirements. Those disciplines later shaped the company’s move into the High-end Home Audio market, and they remain visible in the way Boulder Amplifiers develops, manufactures and assembles its products in its own facility under independent ownership. With the Boulder 808 Phono Preamplifier, Boulder Amplifiers now expands the Boulder 800 Series with a dedicated phono stage for MM and MC cartridges. The new model makes its debut at HIGH END Vienna 2026 and is built around a fully balanced signal path, individually configurable Personality Cards and a substantial aluminium chassis machined from solid blocks.

Key Facts

• Compact phono preamplifier for the Boulder 800 Series
• Designed for MM and MC cartridges
• Fully balanced signal path with XLR inputs and outputs
• Personality Cards for individual cartridge loading
• 70 dB gain for MC cartridges and 44 dB for MM cartridges
• Front-panel switching for mono mode and low-cut filter
• Chassis machined from solid aluminium blocks
• World premiere at HIGH END Vienna 2026

Phono expansion for the Boulder 800 Series

With the Boulder 808 Phono Preamplifier, Boulder Amplifiers adds the one component that had so far been missing from the Boulder 800 Series: a dedicated phono stage. The unit has been designed to sit formally and functionally alongside existing components such as the Boulder 812 DAC/Preamp and the Boulder 861 Stereo Power Amplifier, while also being suitable for direct pairing with the Boulder 866 Integrated Amplifier.

The Boulder 808 Phono Preamplifier should not be read as a diluted version of Boulder Amplifiers’ larger phono stages. It is better understood as a compact expression of the same design thinking: balanced circuitry, meticulous mechanical construction, short signal paths and a determined separation of sensitive audio circuitry from potential interference.

At HIGH END Vienna 2026, Boulder Amplifiers will also present the new Boulder 851 Mono Power Amplifier. That model is covered separately by sempre-audio.at.

Fully balanced from cartridge to output

The fully balanced signal path is central to the Boulder 808 Phono Preamplifier. Boulder Amplifiers points out that a phono cartridge is, by its nature, a balanced signal source. The Boulder 808 Phono Preamplifier follows that principle through the design, aiming to preserve the extremely low-level output of a cartridge with as little noise, instability or loss as possible.

The connections follow the same logic. The rear panel provides one pair of balanced 3-pin XLR inputs and one pair of balanced 3-pin XLR outputs. Output impedance is specified at 100 Ohm, while maximum output level is given as 16 V rms. That should allow the Boulder 808 Phono Preamplifier to drive longer cable runs with confidence, without making signal integrity dependent on unusually short connections or a particularly forgiving downstream component.

Cartridge matching through Personality Cards

One of the more distinctive aspects of the Boulder 808 Phono Preamplifier is how it handles cartridge loading. The unit uses so-called Personality Cards, allowing resistive and capacitive loading to be configured individually. It is an approach familiar from larger Boulder Amplifiers phono stages such as the Boulder 1108 Phono Preamplifier and the Boulder 2108 Phono Preamplifier.

According to the manufacturer, factory loading is set at 100 Ohm for MC cartridges and 47 kOhm for MM cartridges. Maximum input impedance is specified as 1.000 Ohm for MC and 47 kOhm for MM. The point here is not flexibility alone, but the way that flexibility is achieved. Boulder Amplifiers avoids additional relays, switches or remote-controlled circuits in the actual signal path. Instead, loading is handled by the Personality Cards, keeping the delicate phono signal path as direct and uncluttered as possible.

The Boulder 808 Phono Preamplifier offers 70 dB of gain for MC cartridges and 44 dB for MM cartridges. That gives it the range to work with a broad selection of serious cartridges, from classic Moving Magnet designs to low-output Moving Coil models.

Direct control where it matters

The front panel of the Boulder 808 Phono Preamplifier is deliberately restrained, but it is not bare. Alongside standby and mute, Boulder Amplifiers provides a switchable low-cut filter and a mono mode.

The low-cut filter is intended to reduce low-frequency disturbances, such as those caused by warped records or turntable rumble. The mono mode is aimed at mono pressings, where it can help stabilise imaging and reduce noise. These are not features added for the sake of a longer specification sheet. They are practical tools drawn from the real business of listening to records.

Mechanical precision as part of the circuit concept

The chassis of the Boulder 808 Phono Preamplifier is machined from solid aluminium blocks. For Boulder Amplifiers, that is not merely a visual signature. In a phono stage, where the circuit is dealing with extremely small signal voltages, mechanical stability, damping and shielding can have direct relevance to performance.

The substantial, precisely machined enclosure is intended to reduce vibration, minimise structural resonance and protect the sensitive analogue circuitry from external influences. Boulder Amplifiers also uses internal shielding and a spatially separated, shielded power supply. Power consumption is specified at a maximum of 15 W.

Compact architecture, in-house manufacturing

Boulder Amplifiers states that all circuit boards for the Boulder 808 Phono Preamplifier are developed and manufactured in-house. The compact main board uses SMD construction, allowing components to be placed precisely while ground planes and signal paths can be closely controlled. The aim is a short, stable and tightly managed signal path with strong long-term reliability.

That approach fits the position of the Boulder 808 Phono Preamplifier within the Boulder 800 Series. It is not a lifestyle version of a larger Boulder Amplifiers product, nor is it a decorative add-on for occasional vinyl use. It is a full phono preamplifier in a more domestically manageable format, intended for systems where analogue replay matters but where the installation need not take on the scale of the larger Boulder Amplifiers ranges.

All benefits at a glance

• A dedicated phono stage completes the analogue side of the Boulder 800 Series
• Suitable for serious MM and MC cartridge-based vinyl systems
• Personality Cards allow cartridge loading to be tailored without cluttering the signal path
• Fully balanced architecture supports low-noise signal handling from input to output
• Front-panel mono mode is useful for mono pressings and archive listening
• Low-cut filter helps control low-frequency record and turntable artefacts
• Solid aluminium construction adds mechanical stability and shielding
• Shielded power supply helps protect sensitive analogue circuitry
• Compact format makes it a natural partner for the Boulder 812 DAC/Preamp and Boulder 861 Stereo Power Amplifier

Price and availability

The Boulder 808 Phono Preamplifier will be presented for the first time at HIGH END Vienna 2026, which takes place from 4 to 7 June 2026 at the Austria Center Vienna. Boulder Amplifiers will be exhibiting on Level 3 in rooms 3.81 and 3.83.

According to the manufacturer, worldwide shipping is scheduled to begin immediately after HIGH END Vienna 2026. Boulder Amplifiers has not yet announced a specific price. In Germany, Boulder Amplifiers is represented by HiFi-ve GmbH.

Conclusion

With the Boulder 808 Phono Preamplifier, the Boulder 800 Series gains the analogue component it needed to feel properly complete. What makes the unit particularly interesting is that Boulder Amplifiers does not dress vinyl replay in vague talk of warmth or nostalgia. Instead, it approaches the phono stage from its own engineering culture: balanced, mechanically substantial, clearly structured and focused on signal integrity. For listeners looking for a compact but uncompromising route into Boulder Amplifiers’ phono thinking, the Boulder 808 Phono Preamplifier looks like a very serious new proposition.

Technical Data