Primare I25 Modular Integrated Amplifier at Vinyl Sound Buffalo, NY USA

The I25 is a modular full-size integrated amplifier from Primare (Malmö, Sweden), available at Vinyl Sound in Buffalo, NY, USA. Powered by Primare's UFPD 2 all-analog Class-D amplification technology, it delivers 100W per channel into 8Ω and 200W into 4Ω with absolute linearity across the entire audible bandwidth. Five stereo RCA inputs and LINE and PRE outputs provide a complete analog signal centre, while the modular architecture accepts the optional DM25 DAC module and SM35 Prisma streaming module at any time — enabling the I25 to evolve from a pure analog integrated amplifier into a fully equipped streaming and digital hub without replacing the unit.

UFPD 2 Amplification

UFPD 2 (Ultra Fast Power Device 2) is Primare's proprietary all-analog Class-D technology — a fundamental reworking of its award-winning UFPD predecessor. It maintains a consistent feedback loop gain across the entire audible bandwidth, producing amplification that is absolutely linear, fast, and musically natural with the efficiency of Class-D and the sonic character of high-quality linear designs. At 100W into 8Ω and 200W into 4Ω, the I25 drives the vast majority of loudspeakers with confidence and authority despite its compact full-size chassis. Five stereo RCA inputs accommodate any analog source combination — turntable via external phono stage, CD transport, streamer, or tuner — and the PRE output enables connection to an additional power amplifier when the system grows.

Modular Design — Upgradeable at Any Time

The I25's modular architecture is a cornerstone of the Primare ecosystem. The optional DM25 DAC module adds high-resolution digital conversion — Toslink, coaxial, and USB inputs — at any later date. The optional SM35 Prisma streaming module brings AirPlay 2, Chromecast built-in, Spotify Connect, Roon Ready, and multi-room control via the Prisma app to the amplifier without any chassis replacement. Both modules can be installed independently or together, and the I25 integrates naturally with the Primare CD35, DD35, and SC15 Prisma as part of a full 15 or 35 Series source system.

Key Features

• UFPD 2 All-Analog Class-D Amplification: 100W per channel into 8Ω and 200W into 4Ω with absolute linearity across the full audible bandwidth.
• 5 × Stereo RCA Analog Inputs: Comprehensive analog source connectivity for any system configuration.
• LINE and PRE Outputs: RCA outputs for subwoofer, recording device, or external power amplifier connection.
• Optional DM25 DAC Module: High-resolution digital conversion addable at any time.
• Optional SM35 Prisma Streaming Module: AirPlay 2, Chromecast, Spotify Connect, and Roon Ready — installable at any future date.
• Modular and Future-Proof: Part of Primare's modular ecosystem — upgradeable without chassis replacement.
• Scandinavian Design: Signature Primare control knob embodying lagom — balance, proportion, and harmony — in Black or Titanium finish.
• C25 IR Remote: With IR 3.5mm in/out, 12V trigger, and RS232 outboard system control.

Technical Specifications

Connections at a Glance

• 5 × RCA Stereo Analog Inputs
• 1 × RCA LINE Output
• 1 × RCA PRE Output
• 12V Trigger / IR In-Out / RS232
• Optional: DM25 DAC module (adds digital and USB inputs)
• Optional: SM35 Prisma module (adds Wi-Fi, Ethernet, Bluetooth, and full Prisma streaming)

Frequently Asked Questions

What is the Primare I25?

The Primare I25 is a modular full-size integrated amplifier from Primare (Sweden) using UFPD 2 all-analog Class-D technology to deliver 100W per channel into 8Ω and 200W into 4Ω. It includes five stereo RCA inputs and accepts optional DM25 DAC and SM35 Prisma streaming modules at any time. It is available at Vinyl Sound in Buffalo, NY, USA.

How does the Primare I25 differ from the I35?

Both the I25 and I35 use UFPD 2 all-analog Class-D amplification and share the same modular upgrade path. The I35 delivers higher output power — 150W per channel into 8Ω versus 100W for the I25, and 300W versus 200W into 4Ω — and adds two balanced XLR input pairs alongside its RCA inputs. The I25 uses five RCA analog inputs only. For moderate-sensitivity loudspeakers in mid-size listening rooms, the I25 Prisma DM36 provides equivalent digital and streaming capability to the I35 Prisma DM36 at a more accessible price point.

How does the Primare I25 compare to the Rega Elicit MK5?

The Primare I25 and Rega Elicit MK5 are both premium integrated amplifiers, but differ in topology and upgradeability. The Elicit MK5 uses Class AB amplification at 105W per channel in a fixed-feature design. The I25 uses UFPD 2 all-analog Class-D at 100W per channel and adds the ability to accept a DAC and full Prisma streaming module at any time — enabling the amplifier to grow with the system without replacement. The I25 also provides a PRE output for biamping or subwoofer connection, which the Elicit MK5 does not include.

Can I add streaming to the Primare I25 later?

Yes. The I25 accepts the optional SM35 Prisma network player module, installable at the time of purchase or at any later date. This brings AirPlay 2, Chromecast built-in, Spotify Connect, Roon Ready, Bluetooth, and multi-room control to the amplifier without replacing the chassis — a core advantage of Primare's modular design philosophy.

What is UFPD 2 amplification?

UFPD 2 (Ultra Fast Power Device 2) is Primare's proprietary all-analog Class-D amplifier topology. Unlike conventional Class D designs that use digital pulse-width modulation, UFPD 2 maintains a consistent feedback loop gain across the full audible bandwidth — delivering amplification that is linear, fast, and musically natural, combining the efficiency of Class D with the sonic character of the finest linear amplifier designs.

Where can I buy the Primare I25 in Buffalo, NY?

The Primare I25 is available at Vinyl Sound, an authorized Primare dealer in Buffalo, NY, USA. The Vinyl Sound team provides expert guidance on amplifier selection, loudspeaker matching, and module upgrade planning. Visit vinylsound.com or contact the Buffalo showroom for availability and demonstration.