Cornish Underground is a sound and music production company run by the experienced and renowned engineer Brendan McGreal

Brendan McGreal
24B Fore St,
Redruth, Cornwall
TR15 2BD

Tel: 01209 219644
Mob: 07792029936

2 + 3 = ?


Ebby Tremain Photography

Sabrina Dallot-Seguro Photographer
@dallotseguro //

Ali Cherkis

Brian Robinson Photography

Daniel Philbrooks – Shirt & Tie Productions

John Gray – Videographer

Amanda Cunningham

Kelly Thorne

Vaughan Pickhaver

Charlie Coleman

What clients say…

…they have produced impeccable sound regardless of what we throw at them and are now a trusted part of our festival team, they are totally self sufficient and trouble free to work with.

Joe BuirskiFire in the Mountain

We often call on Brendan to do front of house sound for us, he is always quick but thorough in change-over / sound checks. He’s attentive on monitor sounds which are top notch. We always get comments about how great the sound is out front. Above all, he’s a really nice fella to be hanging out with.

Tim Ashton3 Daft Monkeys

It was great to have Brendan as the sound man for Tropical Pressure festival. Brendan is a dedicated sound man patient and positive, I’m always happy with the results. He’s a man who knows what he’s doing.

Omer MakessaOmer Makessa

Brendan McGreal provided the sound equipment and engineered my show at the Scilly Folk Festival. Excellent equipment and superb sound engineering. I’d recommend him to anyone.

Phil BeerShow of Hands

Always a pleasure to work with Brendan – friendly and highly professional. I always know we’re guaranteed a great sound.

Jon LewisTwoManTing

Highly, highly recommend this!!!!! A brilliant, relaxed day with an awesome sounding EP at the end. Great work Brendan McGreal.

Mark RussellOh Majester

Brendan is highly skilled & super adaptable, always takes time to get the best sound for you and for the room. As well as being a sound technician, he is a sound dude.

Mikey PonsfordFlats & Sharps

I’ve always found Brendan to be an absolute pleasure to work with and always breathe a sigh of relief when I find out he’ll be mixing us!

John ElliotLittle Unsaid / Rough Island Band

Couldn’t be happier with the recording. The sound quality was way better than I was expecting for a demo recording and the work Brendan puts in is amazing. Had a great time!!

Luke Saint James

I’m a Singer band leader. Brendan has worked with my bands for several years now. I have found his work to be very professional and responsible with good communication and listening skills, he is good working under pressure. I found his company to use good equipment. I would recommend him any time.

Ramon Vallejo