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Primare I25 Prisma vs Primare I15 MM
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Primare I25 Prisma

Integrated Amplifier | 100 watts RMS into 8-ohms

Primare I25 Prisma
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Primare I15 MM

Integrated Amplifier | 60 watts RMS into 8-ohms

Primare I15 MM
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Primare I25 Prisma Primare I25 Prisma
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Primare I15 MM Primare I15 MM
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Primare I25 Prisma
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Primare I15 MM
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Primare I25 Prisma vs Primare I15 MM Integrated Amplifier Comparison

In this review, we will be comparing two different type of speakers by Primare. Primare I25 Prisma is a Streaming Integrated Amplifier speaker whereas the I15 MM is a Integrated Amplifier speaker.

Let's have a brief look at the main features of Primare I25 Prisma and Primare I15 MM first before getting into our more detailed comparison.

Primare I25 Prisma Key Specs

  • 100 watts RMS into 8-ohms
  • Built-in DAC
  • Bluetooth
  • Weight: 24.20 lbs / 11.00 kg
  • Dimensions (H x W x D):4-1/4inch x 17inch x 17-15/16inch

Primare I15 MM Key Specs

  • 60 watts RMS into 8-ohms
  • Phono Input
  • Weight: 14.30 lbs / 6.50 kg
  • Dimensions (H x W x D):2-7/8inch x 13-7/8inch x 13-3/8inch

What size room are the Primare I25 Prisma and Primare I15 MM Amplifiers good for?

The size of the room in which you are planning to use these amplifiers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their max power parameters:

Listening Environment Primare I25 Prisma Primare I15 MM
Near-field Poor Average
Small Room Poor Good
Mid-size Room Good Average
Large Room Good Poor
Very Large Room Average Bad

I25 Prisma and I15 MM are members of Primare's I series of speakers. Below you can find the loudspeakers from this series.

Primare I Series History
Model Watts RMS (8-ohms) Minimum Impedance Built-in DAC
Primare I15
  
60 wattsN/A-ohmsNo
Primare I35 Prisma
  
150 wattsN/A-ohmsYes
Primare I15 Prisma
  
60 watts4-ohmsYes
Primare I25
  
100 wattsN/A-ohmsNo
Primare I35
  
150 wattsN/A-ohmsNo
Primare I25 Prisma
100 wattsN/A-ohmsYes
Primare I15 MM
60 wattsN/A-ohmsNo

In the following sections, we will get into more detail in order to understand how Primare I25 Prisma and Primare I15 MM compares and end up with enough arguments to decide which one of these amplifiers is the better choice for you.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.


Reasons to choose Primare I25 Prisma over Primare I15 MM
App-Based Control Yes vs None Control the amplifier via an app
Watts into 8-ohms 100 watts vs 60 watts Delivers higher power into 8-ohms speakers
Watts into 4-ohms 200 watts vs 100 watts Delivers higher power into 4-ohms speakers
Total Harmonic Distortion (THD) 0.01% vs 0.02% Less Harmonic Distortion
Signal to Noise Ratio 100 dB vs 97 dB Higher ratings results in cleaner sound
Buil-in DAC Yes vs No Connect digital sources without an external DAC
Bluetooth Yes vs No Stream music via Bluetooth devices
Wi-Fi Yes vs No High quality streaming over WiFi
Optical Digital Inputs 4 vs No More options for connecting Digital sources
Coaxial Digital Inputs 2 vs No More options for connecting Digital sources
Apple AirPlay Yes vs No Compatible with Apple Devices with AirPlay
Apple AirPlay 2 Yes vs No Compatible with Apple Devices with AirPlay 2
Built-in Chromecast Yes vs No Compatible with Chromecast Streaming
Roon Ready vs No Roon Compatibility
Built-in Chromecast Yes vs No Compatible with Chromecast Streaming

Reasons to choose Primare I15 MM over Primare I25 Prisma
MSRP Price(*) 1,995USD vs 4,495USD costs less (*prices may change depending on the seller, location and time)
PhonoInput Yes vs No Connect a turntable directly to your amp
Base Surface Area 1200.2cm2/ 186.0inch2 vs 1969.9cm2/ 305.3inch2 takes less space in your room
Height 74mm vs 108mm Easier to fit in smaller spaces

Inputs and Outputs

The input and output selections that are offered is an important factor when comparing two amplifiers. Here you can find how the I/O selections of the Primare I25 Prisma and Primare I15 MM differs from each other.

Primare I25 Prisma Inputs
  • Total Number of Analog Inputs: 5
  • 4 Optical Digital Input
  • 2 Coaxial Digital Input
  • Ethernet Port
Primare I15 MM Inputs
  • Total Number of Analog Inputs: 5
  • Phono Input
Primare I25 Prisma Back View
Primare I25 Prisma Back View (Click the image for the larger version)

Outputs
  • Stereo RCA (2) Preamp Outputs
Outputs
  • Streo RCA Preamp Outputs
Primare I15 MM Back View
Primare I15 MM Back View (Click the image for the larger version)

What's in the Box of Primare I25 Prisma?

Here are the items that are included inside the box of I25 Prisma:
  • Integrated amplifier
  • 6-feet AC power cord
  • Remote control (C25)
  • 2 AAA batteries
  • 2 Bluetooth/WiFi antennas
  • Two 59-inch Mono-minijack cables
  • AC polarity pen
  • Thank You Letter
  • Safety And Warning Notification
  • What's in the Box of Primare I15 MM?

    Here are the items that come with the I15 MM:
  • Integrated amplifier
  • 6-feet AC power cord
  • Remote control (C25)
  • 2 AAA batteries
  • Two 59-inch Mono-minijack cables
  • AC polarity pen
  • Thank You Letter
  • Safety And Warning Notification
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