Lowering the Noise Floor: An Afternoon of Demonstration at Martins Hi-Fi
We are hosting a special event at our Norwich showroom dedicated to one of the most rewarding — and most overlooked — aspects of hi-fi: lowering the noise floor. Join us for an afternoon of live demonstrations, honest conversation, and serious music, as we show what a well-tuned system is truly capable of.
What Is the Event About?
Most hi-fi systems are held back not by their components, but by interference they were never designed to handle. RFI, mains noise, network interference, and even mobile phones in the listening room all raise the noise floor of a system — masking fine detail, softening transients, and blurring the low-level information that makes recordings come alive. The goal of Lowering the Noise Floor (LTNF) is simple: preserve as much of the original audio signal as possible, so you hear more of what the recording actually contains.
Our event will demonstrate this practically, using a high-quality reference system, then systematically applying LTNF products to show the difference each one makes. The results are audible, and often startling.
The Demonstration System
The reference system for the day is built around a J Sikora Aspire turntable with an Analogue Relax cartridge — an analogue front end chosen for its resolution and ability to reveal exactly what the rest of the chain is doing. The electronics are a full Gold Note stack: the PH-10 or PH-1000 phono stage, DS-1000 line stage, PA-1175 MK2 power amplifier, Tube-1006 valve stage, and PSU-1000 power supply. Loudspeakers are the OePhi Transcendence 2.5, with cables throughout from OePhi and Entreq.
This is a balanced, well-resolved system — exactly the kind of system where LTNF treatment has the most audible impact. You will hear what it sounds like before, and what it sounds like after.
The LTNF Products on Demonstration
AIRT AUDIO will host the demonstration sessions, covering four areas of noise floor management:
- Stillpoints — mechanical de-coupling, isolating components from structure-borne vibration
- Entreq — system grounding, drawing noise away from the signal path and into a dedicated ground
- Entreq — magnetic field management, reducing the effect of electromagnetic interference on sensitive components
- Acustica Applicata — room acoustic treatment, addressing the listening environment itself
Session Times on the 15th May
AIRT AUDIO will run three informal sessions throughout the afternoon:
- 12:00
- 14:00
- 16:00
Each session covers how, why, and the practical importance of LTNF across all aspects of hi-fi — from analogue to digital, in systems both modest and ambitious. There is no obligation and no sales pressure. Come to one session or stay for all three.
Come and Hear It for Yourself
Martins Hi-Fi has been in Norwich since 1968. Elizabeth Gould runs the business today, and we stock only brands we have heard properly and stand behind. If you have ever suspected your system has more to give, this is the afternoon to find out.
We would love to see you. Contact us at info@martinshifi.co.uk, call 01603 627010, or WhatsApp on 07554 687137 to register your interest or ask any questions. You can read more about how we work on our Why Martins Hi-Fi page. We are at 85–91 Ber Street, Norwich, NR1 3EY.
