“Jeff has one of the best ears in the business, (the other’s deaf as post)!
I trust him to get the best out of any recording put in front of him”. Graham Stokes

“You’re the best Jeff in the UK I’ve come across in a lifetime of frustration with mastering”. Dave Robinson

“JM Mastering provided us with a great service and a great sound at a very competitive price. Highly recommended!!”
Stuart Mearns Diffusion Music

'We used JM Mastering for the mastering of our debut album. Our mixes really came to life once mastered, and we were very pleased with the end product”. The Roseville Band

“Great service for mastering! Very good price and friendly atmosphere!” Synchrotrax Records

“Very efficient quick service and quality sounds that work and get radio play!” Tri-Tone

“Jeff is one of the finest mastering engineers I’ve worked with. He’s fast, without losing an ear for details, and jut very pleasant in communication. The first time I heard my record mastered by him I was incredibly impressed. It sounded so much better then i could hope for. Ace!” Machinefabriek

“I have been relying on Jeff Mortimer to master my music for longer than I can remember. I've even had the good fortune to sit with him while he works his way through a recording and am always in awe at how his expertly tuned ears can pick up the slightest inconsistency in sonics.
When people hear my music, a great many have admired the general "sound" of the track. I know a big part of that is due to the work Jeff Mortimer does at JM Mastering.
Many musicians regard their work as a painter would regard a painting. Song writing and recording is a meticulous art. Jeff cares about what he does, that's why more and more of us leave it to him to put the final brush stroke on our music.
Mastering is a sometimes sadly overlooked process in these days of home recording when musicians feel they can do it all themselves. They can't. It's a highly complicated process requiring a particular talent. Jeff Mortimer has that talent.  He's the master masterer. The music Jeff Mortimer masters gets on the radio, enough said!” Marvin Naylor

"Thanks for your excellent service, swift turnaround and prompt despatch, with everything neatly packaged and labelled. I shall be coming back to you for my next album." Astra, Lead Guitarist, Singer & Composer