"The MAP4 Grand Reference is an all out assult of our latest technology, It provides for the discriminating audiophile, the greatest amount of realism and presence from his music. Silent background, detail and ease are the words that describe the MAP4 Grand Reference."
The MAP4 Grand Reference comes supplied with the Audio Grade Wattgates or the optional carbon fiber Furutech connectors.
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A single power cord with AC plug on one end and IEC connector on the other. Applications are multiple depending on the power cord model chosen. Please see the chart below. Price shown is for the standard length of 1 meter. Longer lengths are available and selectable in the shopping cart as well as connector upgrades and breakin service. A full description, as well as an explanation of the internal structure of the power cord can be found below. All cables are hand made to order. Please allow a resonable time for construction.
Our customers have reported replacing these cables with the Morrow Audio line of cables. Are yours on the list? Tara Labs ($2500.00), Nordost Red Dawns, Audience Maestros, Kimber Select, Virtual Dynamic Master ($2873.00), Transparent Reference $9000.00, Anti-Cables, Audio Art IC-3, Reality Cables, DH Labs Silver Sonic, Monster Cables, Cardas Golden, Straightwire, Nordost, Analysis Plus Oval One...
We recommend starting with the source components, working your way to the speakers. After that, start upgrading the power cords. As a detailed example, start first by replacing a source cable, like from a CD player to preamplifier. Next replace the cables from the preamp to power amp. Idealy, if finaces allow, replace these two together to have our cables in your system from source to power amplifier. Next, replace the speaker cables, then start upgrading the power cords, starting again with the source components. Replacing your cables in this order will realize the greatest sonic improvements and enjoyment as you complete each step.
Designing and building cables is a tricky business, requiring just the right balance of gauge, wire type and dielectric. It would be foolish to test our designs on a mediocre system. At Morrow Audio, we have only the best in our listening/ testing room, insuring that whatever system our cables go into, that they should provide great satisfaction and musicality! You can see our listening room here.

Our listening room/ testing room where our designs are evaluated.
Our power cables use 12 gauge stranded Silver-coated Copper wire in multiple runs for each leg. All insulation is high grade Teflon, complete with Wattgate or Furutech connectors. Heads above the rest for an affordable price.
The MAP4 Grand Reference is the best power cable that we offer and has more runs of wire than is found in the MAP1, MAP2 and MAP3. It is designed for current hungry power applications like power amplifiers but will also allow amazing detail retrieval when used with the most delicate turntable or CD player.
What Are the Differences?
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The MAP4 Grand Reference, with many multiple runs of wire on each leg, allows excellent power transfer and low impedance to the component it is used for. The serious audiophile will enjoy the powerful bass, detail, the huge soundstage, realism and resolution retrieval that the MAP4 offers.
Application Chart... Which Power Cord Should I Use?
As you move up the line, each model provides a greater resolution of
sound, regardless of the product it is supplying power to. However, to
provide ease in application, we provide the recommendations below...
| MAP1 | CD transport, CD or DVD player, tuner, phono related |
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| MAP2 | Low power integrated or amp, preamplifier, DAC |
| MAP3 | Medium to high power integrated or amp, subwoofer |
| MAP4 | For the highest resolution, suitable for any application. |
The MAP4 is the same price up to 1 meter. Other length and termination options are selectable in the shopping cart through drop down boxes.
The MAP4 Grand Reference comes standard with the Reference Audio Grade 330i and 350i Wattgate connectors. Furutech FI-50M and FI-50 carbon fiber connectors are also available as an upgrade. The Furutech connectors are notably the best in the world.
About the Furutech connectors...
High End Performance Power connector. Type: 2-pole+earth Rating:15A 125V AC. Piezo Ceramic Series Connectors • A Furutech First! Furutech’s Pure Transmission FI-50 Piezo Ceramic series connector bodies and housings feature several breakthrough construction techniques.
A multilayer nonmagnetic stainless steel and carbon fiber shell incorporates a special damping and insulating acetal copolymer. Furutech settled on stainless and carbon fiber for the outer housing after extensive listening sessions with Japanese industry figures and audiophiles. The body of the connectors combines two “active” materials: Nano-sized ceramic particles and powdered carbon. (Only nano-sized ceramic particles effectively couples with carbon powder.) Nylon and fiberglass are incorporated as well forming an extremely effective, well damped, mechanically and electrically nonresonant connector body. That’s correct, they’re electrically damped as well. Piezoelectric effects are the key.
Furutech’s breakthrough in design and materials is based on employing nano-sized polycrystalline ferroelectric ceramic particles exhibiting electro-generative properties; mechanical pressure creates an electrical charge forming a bridge between electrical and mechanical oscillation.
Carbon powder exhibits thermal-conductive characteristics that interact with the charged ferro-ceramic particles converting their energy into heat that’s conducted away and released from the surface of the connector body! These carefully chosen and tested “active” materials mechanically and electrically damp the connector and receptacle as they “interconvert” thermal, mechanical, and electrical energy for the finest Furutech Pure Transmission signal imaginable.
Connectors available for the MAP4, selectable in the shopping cart.
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There are two IEC options depending on your need. They are pictured below to help you understand the differences. Both options are offered in the shopping cart for Wattgate and Furutech.
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| Regular IEC | 20 Amp IEC |
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If your cable ever breaks, for any reason, even abused, we will repair or replace your cable for free. If you trip over your cable, if your pet eats your cable, if your child takes scissors to your cable, if your cable gets tangled in a sweeper, etc, we will repair or replace it for free. You only pay the shipping. Warranty applies to the original owner and is not transferable. Customer must provide purchase receipt with the returned cable.
We have provided a paper explaining the break-in process and what you will hear.
Our break-in service is also available, saving you the time and hassle of breaking in your cables. This allows you to avoid the "difficult stage" of the break-in process. Save wear and tear on your valuable equipment (and ears) by allowing us to break-in your cables for you!
Standard break-in service, only $15.00: We supply 2 days on our break-in machine, equal to about 96 hours of actual music. This gets you past the "difficult" stage of the break-in, allowing you to listen right away, realizing better and better sound as further time is put on the cables.
Extended break-in service, only $39.00: We supply 5 days on our breakin machine, equal to about 240 hours of actual music. With this service, you receive the cables pretty much fully broken in. Please allow another 100 hours after hookup to settle into your system.
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You may also call us at 800-280-9167 or 859-356-6994.