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CoxBox® Rowing Performance Amplifier

As low as $899.00

The NK CoxBox® Rowing Performance Amplifier combines reliable and powerful voice amplification with stroke rate and timing for coxed rowing shells. The advanced CoxBox GPS model adds the speed or split of the boat as well as distance covered, workout timing, performance review, and location and performance streaming using the NK LiNK Logbook App and a mobile phone. Select just the CoxBox system components you need from this listing, or follow these links to equip your favorite coxswain with a complete CoxBox GPS or CoxBox Core system at a discount. Don’t forget to trade-in your older CoxBox unit for a discount if you have one!

Availability: In stock
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SKU
Coxbox

 

NK's new CoxBox

Sound + Vision

NK's new CoxBox Core™

CoxBox Core

Completely redesigned, CoxBox Core retains the main functions that coxswains have come to rely on, and surrounds them in a more powerful, efficient, streamlined form.

The CoxBox Core features a host of innovations including:

Easy to read display

A single-piece faceplate and large, easy to read display provide a more rugged and waterproof design.

Waterproof interface

Buttons are precisely located and sealed from the elements, reducing the potential for water to enter the unit. The lower profile design takes up less volume.

Longer battery life

New cylindrical battery design provides 10+ hours of battery life with a more reliable, sustained charge.

Wireless Stroke Rate

No more dealing with sensors or magnets.

Monoblock™

Monoblock™ connector port relocates microphone, speaker/charging and data ports away from the face of the unit, creating better readability and simplified serviceability.

Stablesocket™

Stablesocket™ design prevents rotation and bending of plug inserts, which protects pins and sockets from damage.

NK's new CoxBox GPS™

CoxBox GPS

CoxBox GPS combines the most popular features of our world-class SpeedCoach GPS and integrates those capabilities directly into the new CoxBox architecture. In addition to all the features of the CoxBox Core unit, CoxBox GPS features:

» Speed (GPS)
» Memory
» Cumulative Splits
» Distance per Stroke
» Instantaneous split speed
» LiNK Logbook™ integration
» Rapid Charging Smart Accessory
» Planned future integration with SMART modules, such as seat displays, impeller pod, and integrated boat lights

CoxBox Features
  CoxBox GPS CoxBox Core CoxBox
Display Type High contrast, sunlight readable monochrome liquid crystal display with 400 x 240 resolution and large, clear numerals. High contrast, sunlight readable monochrome liquid crystal display with 400 x 240 resolution and large, clear numerals. High contrast monochrome LCD
Display Size 3.6" x 2.6" x 1.2"
(92 x 67 x 31 mm)
3.6" x 2.6" x 1.2"
(92 x 67 x 31 mm)
2.75" x 1.5"
Battery Life 10+ hours 10+ hours 4 hours
Charging Time Standard Charger: 12 hrs.
Espresso Charger™: 4 hrs.
Standard Charger: 12 hrs.
Espresso Charger™: 4 hrs.
Overnight
Performance Tracking Measures Audio
Wireless Stroke Rate
Elapsed Time
Speed (GPS)
Memory
Cumulative Splits
Date
Distance per Stroke
Instantaneous Split Speed
Audio
Wireless Stroke Rate
Elapsed Time
Audio
Stroke Rate
Elapsed Time
Memory
Dimensions 3.20" tall x 4.4" diameter 3.20" tall x 4.4" diameter 4" tall x 4.5" diameter
Weight 1lb 6.1 oz 1lb 6.1 oz 1lb 5.2 oz
Waterproof Waterproof (IP67, NEMA-6) Waterproof (IP67, NEMA-6) Waterproof (IP67, NEMA-6)
Buoyancy Floats Floats Floats
Real-time LiNK Streaming to Cloud (BLE) × ×
Connects to Integrated Smart Impeller Pod
(Coming Soon)
× ×
Connects to Smart Seat Display
(Coming Soon)
× ×
Connect to Smart Integrated Lighting System
(Coming Soon)
×
Connects to Espresso Charger™ Rapid Charging Module ×
Warranty Period Two Year Two Year Two Year
Display Type
CoxBox GPS High contrast, sunlight readable monochrome liquid crystal display with 400 x 240 resolution and large, clear numerals.
CoxBox Core High contrast, sunlight readable monochrome liquid crystal display with 400 x 240 resolution and large, clear numerals.
CoxBox High contrast monochrome LCD
 
Display Size
CoxBox GPS 3.6" x 2.6" x 1.2"
(92 x 67 x 31 mm)
CoxBox Core 3.6" x 2.6" x 1.2"
(92 x 67 x 31 mm)
CoxBox 2.75" x 1.5"
 
Battery Life
CoxBox GPS 10+ Hours
CoxBox Core 10+ Hours
CoxBox 4 Hours
 
Charging Time
CoxBox GPS Standard Charger: 12 hrs.
Espresso Charger™: 4 hrs.
CoxBox Core Standard Charger: 12 hrs.
Espresso Charger™: 4 hrs.
CoxBox Overnight
 
Performance Tracking Measures
CoxBox GPS Audio
Wireless Stroke Rate
Elapsed Time
Speed (GPS)
Memory
Cumulative Splits
Date
Distance per Stroke
Instantaneous Split Speed
CoxBox Core Audio
Wireless Stroke Rate
Elapsed Time
CoxBox Audio
Stroke Rate
Elapsed Time
Memory
 
Dimensions
CoxBox GPS 3.20" tall x 4.4" diameter
CoxBox Core 3.20" tall x 4.4" diameter
CoxBox 4" tall x 4.5" diameter
 
Weight
CoxBox GPS 1lb 6.1 oz
CoxBox Core 1lb 6.1 oz
CoxBox 1lb 5.2 oz
 
Waterproof
CoxBox GPS Waterproof (IP67, NEMA-6)
CoxBox Core Waterproof (IP67, NEMA-6)
CoxBox Waterproof (IP67, NEMA-6)
 
Buoyancy
CoxBox GPS Floats
CoxBox Core Floats
CoxBox Floats
 
Real-Time LiNK Streaming to Cloud (BLE)
CoxBox GPS
CoxBox Core ×
CoxBox ×
 
Connects to Integrated Smart Impeller Pod
(Coming Soon)
CoxBox GPS
CoxBox Core ×
CoxBox ×
 
Connects to Smart Seat Display
(Coming Soon)
CoxBox GPS
CoxBox Core ×
CoxBox ×
 
Connects to Smart Lighting System
(Coming Soon)
CoxBox GPS
CoxBox Core
CoxBox ×
 
Connects to Espresso Charger™ Rapid Charging Module
CoxBox GPS
CoxBox Core
CoxBox ×
 
Warranty Period
CoxBox GPS Two Year
CoxBox Core Two Year
CoxBox Two Year
Specifications
Included in Package
  • CoxBox
  • CoxBox Can Protective Bumper
  • CoxBox Rim Protective Bumper
  • Lanyard
Warranty Period2 Year Warranty
Measurements
MetricUnitsRangeNotes
Chronograph 00:00.00 00:00.00 - 59:59.99 Auto roll-over at 1 hour. 1/100th sec. resolution.
Stroke Count 000 0 - 999 Rate input from seat sensor, auto start with first stroke, auto roll-over at 1000 strokes
Stroke Rate 000 ½ 10 - 127 ½ Rate input from seat sensor, auto start with first stroke

Product Questions

The CoxBox Core will display stroke rate, total strokes and elapsed time. It is functionally equivalent to the previous versions of the CoxBox except there is no need for a seat sensor for stroke rate.

The CoxBox GPS will show the same measurements as the CoxBox Core, plus show you measurements based on the GPS inside the unit. Additionally, you will be able to see distance, speed / split, and distance per stroke. The CoxBox GPS also records the data in memory which can be uploaded to our LiNK Logbook app.

The CoxBox GPS data and positioning can also be live streamed to the cloud for remote viewing when paired in the boat with a mobile device.

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NK has integrated a variety of changes to improve the user experience and ensure a more robust product in the field. Below are some of those features:

  • A single-piece faceplate and large, easy to read display provide a more rugged and waterproof design.
  • Waterproof interface.
  • Buttons are precisely located and sealed from the elements, reducing the potential for water to enter the unit. The lower profile design takes up less volume.
  • New cylindrical battery design provides 10+ hours of battery life with a more reliable, sustained charge.
  • Wireless Stroke Rate - No more dealing with sensors or magnets.
  • Monoblock™ connector port relocates microphone, speaker/charging and data ports away from the face of the unit, creating better readability and simplified serviceability
  • Stablesocket™ design prevents rotation and bending of plug inserts, which protects pins and sockets from damage.
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Yes. The CoxBox Core/GPS are backwards compatible with legacy harnesses, speakers, microphones, chargers and mounting cups. Please note: chargers from 2012 or older may not work with this model

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Yes. Older (even non-functioning) CoxBoxes can be traded in for $100 off a new CoxBox. This policy can be found here: Trade Up, Trade In

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This connector is for a new wiring harness which acts as a data port and runs throughout the boat. This Smart harness is for a variety of additional accessories such as Smart integrated boat lights, Smart impeller, and Smart seat displays. These accessories will be introduced at some point in the future.

This harness is optional and not required to use the CoxBox.

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The battery is internal and not user replaceable. The battery life should be 2 to 3 times longer than the CoxBox 08 external battery. If the battery needs to be replaced, it would be sent back to NK for service.

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Yes. You are able to purchase a CoxBox Core to GPS upgrade for the CoxBox Core to turn it into a CoxBox GPS for the difference in price. The customer is then emailed a file that is loaded onto the unit.

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For saltwater environments, NK recommends to rinse with fresh water after each use. The connectors have been designed to point down slightly to help drainage of salt water and debris after use. NK still recommends monthly cleaning of the sockets and the use of Nyogel on the sockets to help reduce corrosion.

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Yes! Both units will float (even with the microphone attached) without any additional accessories.

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Yes. Both units contain a Bluetooth Low Energy module that is used to communicate with outside applications and devices.

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The CoxBox Core will show you stroke rate, total strokes and elapsed time. It is functionally equivalent to the previous versions of the CoxBox.

The CoxBox GPS will show the same measurements as the CoxBox Core, plus show you measurements based on the GPS inside the unit. Additionally, you will be able to see distance, speed / split, and distance per stroke.

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Both units contain an internal accelerometer that measures stroke rate from the start and stop motion of the boat.

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You should get 2 to 3 times the battery life of the previous CoxBox 08. With a fully charged battery, you should expect 10+ hours of use.

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If your boat is already wired for a CoxBox, no additional accessories would be needed. If you are wiring a boat from scratch, you would need the following:

  • Coxed 4: A harness (0290), M harness (0292), 2 speakers (0207)
  • Coxed 8: A harness (0290), 2 M harnesses (0292), 3 speakers (0207) or
  • Coxed 8: A harness (0290), 3 M harnesses (0292), 4 speakers (0207)
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Please make sure you have a solid satellite signal lock before starting your row. The satellite icon will become filled-in when a satellite lock has been made. It is recommended to turn the unit on when outside and wait a few minutes for a satellite signal lock before rowing.

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A charger and microphone are not included with a purchase of the CoxBox Core/GPS. If you do not have either of these items, you would need to purchase them separately in order to use the CoxBox.

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No, the CoxBox Core/GPS will just ignore the rate sensor if connected. It is advisable to leave the rate sensor connector if you still plan to use previous versions of the CoxBox in that boat. If you are only using the CoxBox Core/GPS in the boat, the rate harness and sensor can be removed to have less wiring in the boat.

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Date and time automatically sync when the unit connects to GPS satellites. Customers have the option to set the Time Zone and whether Daylight Savings time is on or off in order for the correct time to be displayed.

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Yes, but the functions will be limited to updating the firmware. In order to Live Stream or upload data, you would need to have a CoxBox GPS.

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  1. Download LiNK Logbook from the app store on your mobile device Link Logbook
  2. Ensure Bluetooth is turned on on the mobile device. Open LiNK Logbook.
  3. Create an account or login to LiNK Logbook.
  4. Go to the Workout Log Screen. Press the arrow/cloud icon in the top right.
  5. On the CoxBox GPS, go to the Main Menu and select Data LiNK mode.
  6. In the Logbook app, your CoxBox should appear, select it to begin uploading data.
  7. After data has uploaded, select the calendar date and session you want to review.

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Here is a quick video that goes through how to navigate and use the new CoxBox Core / GPS

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  1. Coxswain Tips: Listen and Count at the Same Time Coxswain Tips: Listen and Count at the Same Time Question: When I’m counting out strokes for a drill, I often lose track of which stroke we’re on, especially if the coach is talking. I know that what the coach is saying is important, but I don’t want to mess up the drill. How can I listen and count at the same time? There is a stroke counter at the top right of your CoxBox screen. If you’re starting the drill from a standstill, press and hold the stop/start button (the big one) to reset the
  2. CoxBox 101: How to Time Pieces and Store Data We get many questions from new coxswains about how to use the CoxBox on the water. Here is a short how-to guide to get you started:
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