Primare I35 Prisma vs Primare I15 Prisma Detailed Comparison

Primare I35 Prisma vs Primare I15 Prisma

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Primare I35 Prisma

Integrated Amplifier | 150 watts RMS into 8-ohms

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Primare I15 Prisma

Integrated Amplifier | 60 watts RMS into 8-ohms

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Primare I35 Prisma

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Primare I15 Prisma

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Primare I35 Prisma

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Primare I15 Prisma

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Primare I35 Prisma vs Primare I15 Prisma Integrated Amplifier Comparison

In this review, we will be comparing I35 Prisma and I15 Prisma, two Integrated Amplifiers by Primare. Let's have a brief look at the main features of Primare I35 Prisma and Primare I15 Prisma first before getting into our more detailed comparison.

Primare I35 Prisma Key Specs

150 watts RMS into 8-ohms

Built-in DAC

USB Input

Bluetooth

Weight: 24.20 lbs / 11.00 kg

Dimensions (H x W x D):4-3/16inch x 17inch x 17-15/16inch

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

What size room are the Primare I35 Prisma and Primare I15 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 I35 Prisma	Primare I15 Prisma
Near-field	Are you nuts?	Average
Small Room	Bad	Good
Mid-size Room	Poor	Average
Large Room	Good	Poor
Very Large Room	Good	Bad

I35 Prisma and I15 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 I35 Prisma and Primare I15 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 I35 Prisma over Primare I15 Prisma

Watts into 8-ohms	150 watts vs 60 watts	Delivers higher power into 8-ohms speakers
Watts into 4-ohms	300 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

Reasons to choose Primare I15 Prisma over Primare I35 Prisma

MSRP Price(*)	2,195USD vs 5,795USD	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
Base Surface Area	1387.3cm²/ 215.0inch² vs 1969.9cm²/ 305.3inch²	takes less space in your room
Height	74mm vs 107mm	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 I35 Prisma and Primare I15 Prisma differs from each other.

Primare I35 Prisma Inputs

Total Number of Analog Inputs: 5
4 Optical Digital Input
2 Coaxial Digital Input
USB Input:
- USB-A (connect to a USB Mass Storage Class)
- USB-B (connect to your computer for playback)
Ethernet Port
XLR Input Port

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 I35 Prisma Back View (Click the image for the larger version)

Outputs

Stereo RCA Preamp Outputs

Outputs

Stereo RCA Preamp Outputs

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

What's in the Box of Primare I35 Prisma?

Here are the items that are included inside the box of I35 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 Prisma?

Here are the items that come with the 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