Integrated Amp Reviews

Few audio companies are as closely associated with a single individual as Pass Laboratories is with its founder Nelson Pass, a man who has always blazed his own path when it comes to designing audio gear. Pass founded Threshold Electronics back in the early 1970s, but when he wanted to explore new, simpler circuit topologies in the early 1990s, he created Pass Labs as a way to market his latest creations.

The two integrated amps in the Pass Labs line, the INT-150 and INT-30A, are a good example of his less-than-conventional approach, seeing as both appear to be  identical except for the critical question of output power. Physically the two amps are indistinguishable, with exactly the same functions, weight, dimensions, and even price tag. It’s only when you take a peek at the spec sheet that the differences become apparent, with the INT-150 delivering a healthy 150 watts per-channel, while the INT-30A tops out at just one-fifth that amount.

So what gives? Why would anyone buy an inline four when they’re offering you the V-12 for the same money?

Performance
Features
Ergonomics
Value

AT A GLANCE
Plus
Works with Alexa, Google Assistant, and Siri
Equalizer settings for each input
Can input/output Bluetooth and AirPlay
Uses passive speakers you may already own
Minus
No way to see the input or what song is playing
Could be easier to navigate with fewer clicks/taps
No headphone jack
No Bluetooth aptX for streaming hi-res audio

THE VERDICT
The reasonably priced WiiM Amp is the perfect device to leverage a house full of speakers to create a multi-room sound system. You may have Alexa, Google, or Apple HomePods. Or, passive speakers connected to other WiiM devices. This amp makes it easy to control streaming from the most popular music services anywhere in your home.

Many of us use smart speakers throughout our homes. They control everything from lights to microwaves and washing machines. Usually, these are inexpensive devices like the Amazon Echo, which are not optimal for music listening. But they are perfect for controlling more capable smart speakers and amps.