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The Blog

Spotting a Great Guitar Purchase

AAA Cedar top, high ration tuning machines

A great guitar is the sum of its parts plus the skill and care in assembling them. Too often, a guitarist buys a new guitar without asking the right questions about those parts.

Here are some things we suggest you should look for:

AAA grade (or better) solid wood:

It's not enough to know your new guitar is made with solid wood vs laminated (read plywood) wood. You should also ask what grade of wood was used in the construction. Top wood book-matched pairs are graded from B to A, AA, AAA and Masterclass.  The difference in sonic character between the different grades is significant. So is the price. When a brand you're considering won't, or can't tell you the grade of wood they used, assume the worst.

Dovetail Neck to Body Joint:

A dovetail neck-to-body joint is difficult to do. The skill and time involved often raise the price of a guitar. But that dovetail is critical in constructing a cohesive stringed musical instrument. Everything from weight distribution to sonic voicing relies on that one small joint. Less expensive guitars and/or guitars produced in highly automated factories where bolt-on necks are the norm rarely rise to the same standard.

Genuine Bone Nuts and Saddles:

If the guitar you're considering has a plastic nut or plastic saddle, treat yourself to an inexpensive upgrade with parts made from actual bone. The difference in sound will surprise you. Tusq and Nubone from Graphtec will produce similar results.

Wood or Bone Bridgepins:

The jury's out here. We use Rosewood, Ebony or bone, but we suspect conventional plastic would be fine.

High Ratio Tuning Machines:

Most guitars come with standard 14:1 ratio tuning machines. Really good guitars are equipped with 18:1 or 20:1 tuners, not just because they allow incredibly fine-tuning of each string but also because the machining needed to produce them must be more precise. They're simply better quality tuning machines.


We'd Like to Give You a Copy of The Lost Tapes

Ian & Sylvia - the Lost Tapes

Courtesy of True North Records and Stoney Plain Records, we gave away a copy of the new Ian & Sylvia record to everyone who purchases the new Ian Tyson Inspiration acoustic guitar.

They choose between:

  • CD
  • Vinyl LP (very limited quantities)
  • FLAC (High bit rate download)

N.B. The choice of the physical media - CD and Vinyl LP - will incur a nominal shipping charge.


This offer is no longer available.

We Now Ship to Europe

MacKenzie & Marr ships guitars to Europe
Musicians in Europe (that still includes Britain, doesn't it?) have been writing for years asking if they can buy MacKenzie & Marr guitars from us. Until today we've sadly had to say no. That's changed. Thanks to reduced shipping rates from our carrier and our newly discovered ability to fill out government export documents without wanting to commit murder, we now ship to most countries in Europe. We can't offer the seven day "no-hassle money-back guarantee" or the return for repair or replacement lifetime warranty but given the almost non-existence of problems on this side of the Atlantic in the last eight years, we're confident that's not an issue. Freight costs to most European countries are $300 CAD. We're working to lower that by a bit. Stay tuned.

You're not a Tom Rush Fan? We'll change that!

Tom put together a CD of some of his live shows a few years ago. We have a few copies and we'd love to give you one. All you need to do is send us a stamped self addressed CD mailer. CD mailers are available at most stationary stores. Please use our Canadian address. You'll find it on our contact page.

Guitars Make Great Gifts

This time of year it seems that Santa Claus works in our shipping department. We're constantly surprised by the number of generous spouses, parents, children etc who order MacKenzie & Marr guitars as Christmas presents. Here's what you need to know about buying one of our guitars to put under the tree:

  • We extend our 7 day "Love it or Leave It" no questions asked return policy until the end of the first week of the New Year for all guitars being given as gifts. Make sure you mark "Christmas gift" or "Holiday gift" in the comments field of the order form, or (as always) call us at (514)833-8352.
  • In order to insure your guitar arrives in time for the Holidays we recommend ordering as early as possible.
  • If you would like to order early but have us hold you guitar in our humidified warehouse let us know. We'll make sure we ship it so it arrives in time to go under the tree.

Calculating the Relative Humidity In Your Home

Comparing indoor and outdoor relative humidity readings for the same location

Here's how we check the approximate relative humidity in our loft. To begin with, we need the current outdoor temperature and the current dew point, which we get from any number of weather sites. In this example, they are 0 and -6, respectively. We load the calculator (, plug those numbers into the appropriate boxes and hit the "Calculate" button. Hopefully, the resulting RH (relative humidity) will be close to the same as shown on the weather page we visited earlier.

Next, we clear the RH field, replace the temperature field with our current indoor temperature and calculate again. In this example, with no additional humidification, the indoor RH would be a staggering 50% less.  In all honesty, we rarely do any of those calculations for our location. We have a bunch of calibrated hygrometers scattered around the loft and one or two full room humidifiers running from late September until well into May. We make sure we're at least 40% RH, (preferably 45-50%) but it's good to know just how much of an uphill fight it is to maintain comfortable and safe humidity. Try it for your home. 

Ben Moore Fingerstyle Player and Teacher

The Lyre - Ben Moore - Original Instrumental Guitar

When Ben Moore pointed us towards some of the cool videos he's recorded of his fingerstyle playing on a left handed conversion of our Tofino acoustic guitar we wanted to share them. Enjoy!

Ben is a classically trained guitarist who concentrates on contemporary fingerstyle, composition, and teaching. He’s from Cambridge Ontario but recently graduated the Music Performance program with honours (under the tutelage of Dr. Matthew Gould) at Cambrian College in Sudbury. He placed second in 2014’s OMFA provincials performing Grade 9 classical guitar and has received numerous high golds from Sudbury’s Kiwanis Music Festival in 2015.
Ben’s works include pieces for piano, orchestra, and guitar ensemble. Most recently he has released several cover arrangement/original video's on his YouTube and Facebook. He has 2 albums: his debut album named “Exposed” (2014), and "That's That for That" (2015) which are both contemporary fingerstyle.

See (and hear) more of Ben's great playing on his Youtube Channel (

How to Humidify Your Guitar

First published October 2012 - republished annually each October When I was young and innocent – young and stupid would be more accurate – back in the 60s, I carried a Martin D-28 all over Canada and down into California - in a cardboard case – hitchhiking, jumping trains and delivering drive-away dealer cars. The guitar not only survived my careless treatment but never suffered any ill effects from a lack of humidity. Truth be told no one seemed to be aware of any issues related to dry air back then.

Fifty years later it's different. Everyone is concerned about humidity – too much in hot summer or southern states and too little in dry winter conditions or high altitude climates. Why the change? ...more there any reason for a guitarist to worry about the humidity?

To begin let's define humidity, or more accurately, relative humidity. The measurement of moisture in the air is always expressed as a percentage of the total moisture the air could hold – relative to the temperature. Listen to the weather report and you'll hear the announcer say something like “The relative humidity today is 40%” That doesn't mean 40% of the air is water vapour. It means that the air outside is holding 40% of the water vapour it is capable of holding. That's an important point to understand and gets us 1/2 way up humidity mountain. Its drier at the top which, of course, is the reason for the climb. To reach the summit we need to add in the temperature factor. Cold air holds less humidity than warm air but because we're measuring that vapour as a percentage of the air's ability to hold moisture it's not unusual to have a humidex reading of 40% or 50% or more in the height of winter. The air feels dry but has a humidity readout of 50%?

The same reading in summer produces insufferable dripping (dare I say it) sweat. Cold winter air simply can't hold much moisture so even a high (remember- relative to temperature) humidity reading is still pretty dry. 50% of not very much is still not very much. Here's where it becomes a train wreck for musicians, people, dogs, cats and pretty much everything except goldfish: Let's assume, for the sake of argument the humidity reading outside your window on a 0 Celsius (32 F) day is 40%. That's the air you're importing into your home. Question - Is it still going to have a relative humidity of 40% once you heat it to the 20-degree range (70F)? Absolutely not,

We're measuring the amount of moisture in the air relative to what it can hold and warm air can hold more moisture than cold air. Cold winter air, once heated to a comfortable temperature, can have a relative humidity of under 10%. Nature arbors a vacuum but she gets pissed off about discrepancies! The air in a building may have a very low humidity level but everything else in the building doesn't. That's a discrepancy in need of correction so moisture starts moving out of your skin, your furniture and (finally some relevance) your guitar into the air to achieve a balance. Your skin cracks, furniture joints dry out and guitar strings start buzzing. The balance, of course, is never achieved because we keep on sucking in new cold air, heating it up and lowering the interior humidity.

Buzzing strings and sharp fret ends are canaries in the coal mine for an acoustic owner - early warning signs of a need to humidify. The strings are likely buzzing because the top of the guitar has dried and dropped. Even 1/100th of an inch produces noticeable changes in playability. (NB. Altitude and atmospheric pressure can also cause a guitar top to move like a barometer). Fret ends are protruding because the neck is shrinking in girth as it sheds humidity. The guitar will be less playable – but more critically, continued exposure to dry air may result in permanent damage. Don't believe me? Take a look at every reputable guitar maker's warranty. Ask yourself why they all (we're no different) specifically exclude cracking due to lack of humidification. Wood shrinks across the grain as it drys. Constrained wood such as guitar tops with the bracing running perpendicular to the grain won't stop shrinking. It simply splits. What started life as a beautiful solid wood acoustic guitar can be reduced to kindling without a bit of care. So now we're solid on what relative humidity is all about and we're paranoid about protecting our guitars from its insatiable thirst. Good. Let's dump the theory lecture and put a working game plan in place.

If the environment where we keep our guitars is too dry the solution is to raise the humidity level. Not rocket science. But not brain dead simple either. The operative word in the above sentence is “IF”. Before we start pumping all kinds of moisture into the air we should know how much (if any) hydration we need. Over hydrating a guitar has its own set of problems. We also need to have a system that works for our specific needs. Establishing the actual relative humidity is accomplished with the use of simple (and cheap) little metering device called a hygrometer. Park it in a room and the needle or digital reading will pretty quickly tell you the relative humidity of that room. Once we know how dry the air is we'll use some sort of humidifier to raise the level to 40% or 50%. Here's the rub (or rubs). Rub 1 - No hygrometer I've ever seen is accurate. They can't be trusted. But they can be calibrated. Do a web search for calibrating a hygrometer with salt and you'll find a few dozen sites explaining how to establish your hygrometer's inaccuracy. Then add or subtract that amount to get an accurate reading. Rub 2 – Most methods of maintaining a decent moisture level suck the big one. Despite what that heating specialist (fast-talking salesman) told you, whole-house humidifiers attached to the furnace are useless. If you have one take your newly calibrated hygrometer on a tour of your house and watch the reading swing wildly from room to room. In-case, or soundhole humidifiers aren't ideal either. Some are better than others but they all rely on passive evaporation to draw out their moisture - not highly effective! They hold micro amounts of water that may or may not reach some parts of the guitar (one manufacturer specifically warns that their soundhole humidifier may do little or nothing for the neck. In very dry climates in-case humidifiers are, by themselves almost useless.

My personal preference is a stand-alone in-room humidifier. They don't cost a lot (most hardware and home decor stores run pretty good sales this time of year) and they do the job well. They have their own built-in hygrometer (no more accurate than the one you bought – you did buy one right? But at least you'll know and compensate for the error). Provided you keep your guitar in the same room as the humidifier (did I really need to make that point?) and you fill the humidifier when it runs dry (again, it seems obvious but...?) you'll go through the driest winter with a beautifully playable guitar. Some additional notes: A very good guitarist in Nova Scotia told me that he didn't need to humidify his guitars because he lived right beside the ocean. He was wrong (about humidity not about where he lived) The humidity level in his house in January was 22%. The physics of heating cold dry air doesn't change because you've got a lobster pond across the road. Another guitarist – this one in Alberta – had some musician friends over last October and handed one of them a guitar he'd stored away for a few months (no humidification) The guitar had cracked in storage. Some areas of the continent are drier than others. If you live just east of the Rockies the air you get is already dry at the best of times. Don't wait for the first snowfall - and don't rely on a tiny in-case humidifier. You'll destroy your guitar in a matter of (very cold) days.

Oh..and that Martin I campaigned across North America? Back then the construction techniques weren't as precise nor were the glues as binding as today. Wood may have been more seasoned (I have my doubts) and homes weren't very well insulated. Or perhaps I was just lucky on the road. I do know that somewhere near Salinas, ......

Irish Mythen Playing Tofino at the Stewart Park Festival

Irish Mythen plays the MacKenzie & Marr Tofino

We were treated to an impromptu performance by both Irish Mythen and Steve Poltz at the closing party for volunteers at the 25th Annual Stewart Park Festival in Perth, Ontario. It's always a treat to see and hear our Tofino acoustic in such capable hands.

The 25th Annual Stewart Park Festival in Perth Ontario

John Marr presents John Newman, the Stewart Park Festival volunteer, with his new guitar

John Marr (right) presents John Newman, this year's winner, with a Tofino.

What a rewarding weekend! What more could you ask for than two stages of fabulous music, a bucolic setting in the middle of a picturesque Ontario town offering us a chance to meet and make new friends with some really wonderful people?
In the course of any given day, we usually only have conversations with musicians via email, phone, text or web chat. Rarely do we meet people face to face so were looking forward to setting up at the Annual Stewart Park Festival in Perth, Ontario. It gave us a chance to introduce our hand crafted guitars to a whole new audience as well as get one-on-one feedback. MacKenzie & Marr Guitars donated a solid wood acoustic guitar to Stewart Park Festival volunteers. The guitar was drawn during the wrap dinner at the end of the Festival.
This year we had the added pleasure of having both Irish Mythen and Steve Poltz treating us to an impromptu concert on a park bench outside the Crystal Palace at the volunteers' party. They were kind enough to let us video their performances so that you too can enjoy their generosity and talent.
If you've never visited Perth or (even worse!) never attended the Stewart Park Festival, now is the time to mark it off in your 2017 calendar. We'll be back with our solid wood guitars but more importantly, so will a host of fabulous musicians and a team of gung-ho volunteers.


Fall In Love In Less Than a Week

Try any of our guitars in the comfort of your own home. If you don't fall head over heels in love within a week we'll arrange to take it back and issue a full refund (including shipping).
*certain conditions apply.

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