Primare I15 Prisma vs Primare I25 Prisma Detailed Comparison

Primare I15 Prisma vs Primare I25 Prisma

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Primare I15 Prisma

Integrated Amplifier | 60 watts RMS into 8-ohms

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Primare I25 Prisma

Integrated Amplifier | 100 watts RMS into 8-ohms

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Primare I15 Prisma

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Primare I25 Prisma

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Primare I15 Prisma

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Primare I25 Prisma

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Primare I15 Prisma vs Primare I25 Prisma Integrated Amplifier Comparison

In this review, we will be comparing I15 Prisma and I25 Prisma, two Integrated Amplifiers by Primare. Let's have a brief look at the main features of Primare I15 Prisma and Primare I25 Prisma first before getting into our more detailed comparison.

Primare I15 Prisma Key Specs

60 watts RMS into 8-ohms

Built-in DAC

USB Input

Bluetooth

Weight: 14.30 lbs / 6.50 kg

Dimensions (H x W x D):2-7/8inch x 13-7/8inch x 15-7/16inch

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

What size room are the Primare I15 Prisma and Primare I25 Prisma 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 I15 Prisma	Primare I25 Prisma
Near-field	Average	Poor
Small Room	Good	Poor
Mid-size Room	Average	Good
Large Room	Poor	Good
Very Large Room	Bad	Average

I15 Prisma and I25 Prisma 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 watts	N/A-ohms	No
Primare I35 Prisma	150 watts	N/A-ohms	Yes
Primare I15 Prisma	60 watts	4-ohms	Yes
Primare I35	150 watts	N/A-ohms	No
Primare I25	100 watts	N/A-ohms	No
Primare I25 Prisma	100 watts	N/A-ohms	Yes
Primare I15 MM	60 watts	N/A-ohms	No

In the following sections, we will get into more detail in order to understand how Primare I15 Prisma and Primare I25 Prisma 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 I15 Prisma over Primare I25 Prisma

MSRP Price(*)	2,195USD vs 4,495USD	costs less (*prices may change depending on the seller, location and time)
Minimum Impedance	4 ohms vs N/A ohms	Compatible with 4-ohms speakers
USB Input	Yes vs ---	Connect Sources via USB
Base Surface Area	1387.3cm²/ 215.0inch² vs 1969.9cm²/ 305.3inch²	takes less space in your room
Height	74mm vs 108mm	Easier to fit in smaller spaces

Reasons to choose Primare I25 Prisma over Primare I15 Prisma

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 0.05%	Less Harmonic Distortion
Signal to Noise Ratio	100 dB vs 97 dB	Higher ratings results in cleaner sound
Total Analog Inputs	5 vs 1	More options for connecting Analog sources
Optical Digital Inputs	4 vs 3	More options for connecting Digital sources
Coaxial Digital Inputs	2 vs 1	More options for connecting Digital sources

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 I15 Prisma and Primare I25 Prisma differs from each other.

Primare I15 Prisma Inputs

Total Number of Analog Inputs: 1
3 Optical Digital Input
1 Coaxial Digital Input
USB Input:
- USB-A (connect to a USB Mass Storage Class)
- USB-B (connect to your computer for playback)
Ethernet Port

Primare I25 Prisma Inputs

Total Number of Analog Inputs: 5
4 Optical Digital Input
2 Coaxial Digital Input
Ethernet Port

Primare I15 Prisma Back View (Click the image for the larger version)

Outputs

Stereo RCA Preamp Outputs

Outputs

Stereo RCA (2) Preamp Outputs

Primare I25 Prisma Back View (Click the image for the larger version)

What's in the Box of Primare I15 Prisma?

Here are the items that are included inside the box of I15 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 I25 Prisma?

Here are the items that come with the 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