GC HiFi

GC HiFi The Gold Coasts' own High Fidelity Stereo Specialists for music lovers and discerning audiophiles

JL Audio Sub-woofer upgrade.I have recently been spending so much time in our front room with the stunning Marten Parker...
20/06/2026

JL Audio Sub-woofer upgrade.
I have recently been spending so much time in our front room with the stunning Marten Parker Duo Diamonds and the JL F1-10 Subs and loving what I'm hearing that I have not been listening to the main room even with a much higher level of components as I have been struggling listening in their without subs, even with the Estelon XB's.
Why? in part, I think it is because I actually added more much needed room treatment to the main room to get the Mingus Septet Statements sounding their best and that it would appear has calmed the room more than I expected.
So this week I ordered a pair of the next size up F1-12's and as soon as they arrived yesterday I unboxed and set them up. Given I am hopeless at setting up manual Sub's I only use the Fathom series which has a inbuilt and easily set up room correction program. On average 3 minutes per sub and after that it is pretty much only a case of setting the right volume. Set and forget!
So how is the main room sounding now? ... Well the front room for the first time in weeks is currently turned off and even though the F1-12's are not run it yet the main room has recaptured its magic and the whole system in there is seriously sounding great again, the F1-12's have taken it to a even higher level than the F1-10's did previously, which has surprised me a little, I didn't expect this much.
Still give it a week, some new proper Sub cables and another set of IsoAcoustic Gaia footers and carpet spikes and I bet it will even sound way better.
If any of you are thinking of getting one/two of these exceptional sub's and especially the flagship Fathom series, then now seriously is the time, big price rises on are not far away. Speak to your local JL dealer or give me a call very soon.

cheers,
Terry

Internet Upgrade for Sound Quality Improvement  ... Update Part 2. You may ask why am I talking about internet upgrades ...
15/06/2026

Internet Upgrade for Sound Quality Improvement ... Update Part 2.

You may ask why am I talking about internet upgrades on a Hifi page? Simple really, the more you can improve the source then chances are the better the information delivered and that should equate to a higher sound quality at the end of the line.

Its been several weeks since I had the fibre optic cable upgrade all the way into our office along with a new NBN Router. Previously we had Fibre to the Kerb and the cabling inside the house from the Telstra box to my office turned out to be Cat5 and approx was 20 years old.

First impressions were that the upgrade was that there was definitely a change, I considered it as a good starting point and as I expected it will need to have to rest of the system to be fine tuned for the new internet connection as the rest of the system that had been set up to maximise the information being supplied by the old system, which by the way I had managed to get to a very good level. I must admit I actually wondered if the upgrade would make a serious decent sized SQ improvement or be a step back.

To start off with Telstra supplied a new latest spec modem as they informed me that the existing one wouldn't work with the new NBN router.

So we plugged in the new modem and got it working after spending hours on the phone to a Telstra Tech. Was I impressed in the SQ being delivered? ... Actually no, it sounded thin and if anything a bit sharp, plus we couldn't use the existing Plixir Statement LPSU with it, which didn't help. In the long discussions with the Telstra Tech he informed us that the old Modem worked fine and we had been given the wrong information, so after a few hours of using the new modem I decided to swap it out and try the old one with the Plixir. The improvement in SQ was massive, new isn't always better obviously.

As I wrote in part 1 I am also using Vertere ethernet cables directly from the NBN router to the modem and then to a switch, I did try various other ethernet patch cables with mixed results. But in the end after various comparisons in my opinion these Vertere cables, while definitely not inexpensive, are worth every penny for how they improve sound quality. However like with all things Hifi, system synergy is king and while they beat off all challengers here that doesn't mean they will sound the best in every system.

So several weeks later how does it sound and have I had to make any changes and was it worth the upgrade? Like every new bit of electronics it takes time to settle down and that has been the case here as well, apart from the cable the only really new thing has been the NBN box and over the last couple of weeks the streaming system has become far more relaxed and enjoyable to listen to from what it was when first installed.

Has it improved over the original internet we had? .... Yes it most definitely has, the new system is far more refined in the sound delivered, with better separation and a lower noise floor and excellent decay. Having said that I had to make a couple of changes to get there. Prior to the upgrade I was using Atlas Cat7 from the switch in the office to the components in the room. I also had Atlas Cat6 in the wall but it sounded slow and flat as a pancake in comparison to the Cat7. Once the internet was upgraded the Cat7 while sounding very good on some fronts also sounded to bright and it lost decay and musicality. Simply switching from Cat7 to Cat6 made all the difference.

Am I happy with where its at? ... Not 100% yet I'm not, I still am chasing a bit of a more relaxed sound and I will continue to try various tweaks to see if I can have the best of both worlds in SQ from the upgraded system and if I can achieve that then that would be truly excellent and a big step up over the old system, both the old and new systems have strength and weaknesses and as I first thought it will more than likely come down to fine tuning, which I'm only just getting sorted I reckon.
One very positive aspect of upgrading the internet at our place is the picture quality we now get through Apple TV into the Christie Projector, it is so so much better, talk about stunning micro detail that is not only much more vibrant but far more realistic colour! I thought it was great before, now its exceptional.

Where to from here? I will be trying different speeds down to see if that makes a difference, it shouldn't but the one thing I have learned in Hifi is everything makes a difference, not always better though. It looks like I will also be trying over the next few weeks several different modems at various price points to see if the old $100 Telstra unit is as good as it gets. I reckon that will be interesting to find out.

So am I happy with the internet upgrade and would I recommend it? ... Absolutely when it comes to streaming the better you can make you source the better the sound quality and that is what this upgrade has easily achieved.

cheers,
Terry

Have a listen to the stunning new Aries Cerat Sirene speakers that have just been launched at the Vienna HiFi Show. ... ...
07/06/2026

Have a listen to the stunning new Aries Cerat Sirene speakers that have just been launched at the Vienna HiFi Show. ... Wow!

Like and Subscribe!Visit us at www.ibelieveinhifi.comSystem Lis...

Internet Upgrade for Streaming SQ Improvements ... Is it worth the hassle?So you are into streaming, there is a lot of p...
26/05/2026

Internet Upgrade for Streaming SQ Improvements ... Is it worth the hassle?

So you are into streaming, there is a lot of parts to any high end streaming system and your internet connection is part of that system. Here I'm explaining what we have been up to to try and compare what we had with fibre to the Kerb and now Fibre to the office to try improve SQ through a better connection.

Since starting GC HiFi a number of years ago I have mainly focussed on streaming music. Our internet was made up of fibre to the kerb and copper into the house, with what turned out to be Cat5 to the modem. It always amazed me how good the zeros and ones were delivered through the cheapest looking copper patch cable from the wall socket to the NBN box.
I left it this way because I wanted to showcase how even a pretty average internet connection could deliver very good streaming with the right filters, switches etc.

Finally I bit the bullet and decided to get fibre into the house, so I had conduit installed from the side of the house where the Telstra box was through to my office where the NBN Router/Modem was installed. This was done yesterday and after a lot of mucking around we finally got a internet connection back up and running.

This post (Part 1) is a brief report on what the install has been and what has been changed.

Below is what the system is presently.

1. Fibre to the office.
2. New NBN Router/Modem
3. still using the existing Telstra Modem
4. After comparing replaced the power to the NBN Router with 12v DC from a Plixir Statement PSU and Statement cable.
5. After comparing replaced the Ethernet cable from the NBN box to the Telstra Modem and then to a switch I'm using with Vertere HB Plus patch cables.

Please see the picks below. I will explain more about what we heard, the good and the bad, and some other tweaks in part 2 which I will endeavour to put up tomorrow.

cheers,
Terry

HOW TO IMPROVE YOUR HIFI SYSTEMS SQ FOR FREE!Not every Hifi improvement has to cost money. here is an easy and very chea...
06/05/2026

HOW TO IMPROVE YOUR HIFI SYSTEMS SQ FOR FREE!

Not every Hifi improvement has to cost money. here is an easy and very cheap way to improve sound quality for most home Hifi system that share the same room with a TV.

Check out the photo, easiest way to provide a level of room treatment is to cover the TV with a Doona cover like we have here. Even though the room already has a level of room treatment including Bass Traps and Absorber/ diffusers on the rear wall, still covering the TV greatly improves the SQ. Yes it is a pain in the butt to cover the TV with a doona cover and I tend to only do it when I'm having a big listening session.

Why not try it and then let us know what, if any, difference you can hear.

cheers Terry

05/05/2026
Marten Speaker Gold Coast HiFi Clubhouse GTGPart 2 of the happy snaps from the recent Gold Coast Hifi Clubhouse GTG that...
05/05/2026

Marten Speaker Gold Coast HiFi Clubhouse GTG
Part 2 of the happy snaps from the recent Gold Coast Hifi Clubhouse GTG that we hosted that featured three rooms of Marten speakers as well as the two new flagship Oladra music servers.
Pics of the Oladra's will follow in the next few days along with lots of great pics of the other components that were teamed with the Marten speakers in each room.

cheers,
Terry

02/05/2026

While this video was made to explain what stereo is for people producing music, it also in part explains how stereo works.

Upgrading a Hifi system doesn't always have to mean new speakers, DAC's, TT's etc. Occassionally there is a product that...
01/05/2026

Upgrading a Hifi system doesn't always have to mean new speakers, DAC's, TT's etc. Occassionally there is a product that is way outside the usual square and this is one of those and I'm seriously impressed by it. We now have the QKore at GC HiFi and it makes a serious SQ improvement that needs to be heard to be really appreciated. Call me to arrange a listening session to hear how the Nordost earthing system makes a huge improvement to SQ.

cheers Terry

QKORE: Less noise and more music.

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