Critical Mass (Wed 9pm)

01/10/2025

Tune into Critical Mass (Wed 9pm) TONIGHT and hear our drummer Louis talk about *THIS SATURDAY!* Electric Eye Heavy Fest 2025 at Freo Social, Fremantle, our upcoming album 'Be***al Possession' and all things Depravity. You'll love it!

23/09/2025

Tonight on Critical Mass it’s a double dose of DOOM! KING ZOG’s Dan joins Brendon as co-host for Tomb of Brendoom.
All the latest doom, stoner, sludge and heavy psych news and new releases including Castle Rat Stoned Jesus Slomatics VVARP Hooded Menace Grin and more

02/09/2025

Tonight on Critical Mass is 2 hours of doom, stoner, sludge and heavy psych on the Tomb of Brendoom. New music from KADAVAR Guild OxEn Dozer Tons Seedy Jeezus.
Plus an interview with Igor of Ukraine’s Stoned Jesus.

27/08/2025

Another tribute to the fallen on Critical Mass (Wed 9pm) as we remember Brent Hinds and his work with Mastodon.
Special thanks to all who contributed to Radiothon📻 last week, supporting Critical Mass and RTRFM 92.1 generally.

20/08/2025

RTRFM is more than radio. Much, much more.

Since its inception in 1977, our station has promoted local artists, provided a platform for diverse voices and diverse views, supported local businesses and been part of the social fabric in WA.

We are proud to provide an independent voice to artists, play different music and relate local stories with our own brand of unplaylisted, hand-crafted, homegrown radio.

And we want to keep being The Sound Alternative for years to come - but we need your help.

One third of our annual income ($350,000) is raised right now during Radiothon. You – our listeners – are our main funders. Your support is what keeps the station going year after year.

Whether you've been a subscriber in the past, or are a long-time listener who has never subscribed, now is the time to show us how RTRFM means more than just radio to you. So please go to https://rtrfm.com.au and subscribe or donate.

And don't forget to tune into our special Radiothon 2025 edition of Critical Mass tonight from 9pm! \m/

05/08/2025

Tonight on Critical Mass the Tomb of Brendoom returns with a show bigger than a gargantuan mammoth mountain.
Jethro and Callum from Bloodwood will be in the studio to talk about their debut album Dark Simulator.
Plus new doom, stoner, sludge and heavy psych releases from Stoned Jesus Castle Rat Margarita Witch Cult Dirty Pagans Psychic Mass Horus Slomatics Droid Paralyzed Goya Magmakammer and more

01/08/2025

Been digging this? The latest from Margarita Witch Cult out on HEAVY PSYCH SOUNDS.

9 track album

25/07/2025

Some seriously heavy doom at NYP. The latest full length from GORTHON.

9 track album

23/07/2025

We are saddened and shocked at the passing of the pioneer of Heavy Metal Ozzy Osbourne.
Tonight Critical Mass will honour one of the great showmen of our time with a full show of requests, retrospectively delving into Ozzy/Sabbath classics to remember and reminice. RTRFM 92.1 9pm

29/04/2025

Sick of being annoyed and pummelled day after day with stupid election crap? Give yourself the night off and tune into 2 hours of heaviness on Critical Mass (Wed 9pm)!

We've got the latest and greatest from Hidden Intent, Drudkh (Official) and Cryptopsy, local goodness from Brahmastra, Magic Chicken Fudgetoe, Celestial Burial and WitchCliff, plus Psychlona, Scour, Déhà, 1349 (Official) and heaps more.

Cast your vote for screaming riffs, blistering solos and wholesome family goodness (hehe, that one WILL be a broken election promise) by tuning into RTRFM 92.1 from 9pm tonight, or streaming live from https://rtrfm.com.au/

Authorized by R J Dio for the Critical Mass party, Mt Lawley.

09/04/2025

Tonight on critical mass I'll be joined by the guys for Allocer to talk new EP's, up coming gigs and find out what makes these chaps do what they do🤘 plus the usual helping of local metal.

Tune in from 9 tonight on RTRFM 92.1

25/03/2025

Tomb of Brendoom returns tonight to Critical Mass on RTRFM 92.1
2 hours of the best new releases and news of doom, stoner, sludge and heavy psych.
Latest releases from Witchcraft Magic Chicken Fudgetoe Elephant O**y Blackwater Holylight WitchCliff Conan The Death Wheelers Year of the Cobra Ghostsmoker Acid Magus and more