I have 2 classic wireless blastir. what product should i purchase that will allow the control of 3 identical dvr boxes using the existing blasters

You should not use the Classic Wireless BlastIR to control 3 identical DVR Boxes. You will want to purchase the BlastIR Wireless Pro for that set up. With the pro version you can set each pair to a different zone to avoid cross talk and interference.

How far from the receiving device can this be placed? (IR range?)

I have the ir blaster transmitter and receiver about 24 feet apart, and the ir transmitter about 10 feet from the equipment I control, and it works well. It is more crucial for the ir transmitter be aimed properly towards the equipment that is to be controlled.

How many devices can this control? Would a quad-head emitter work?

This has a broadcast style emitter so it will usually hit multiple devices as long as they're relatively close to each other. You can add a quad emitter if you would like.

What wireless range does a transmitter/receiver pair have?

They can communicate with each other up to 650 feet away. -Sewell Direct

Sewell Blastir Wireless Pro Emitter Only Remote Control Extender Ir

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Description

📺 Elevate Your Entertainment Experience!

SEAMLESS CONTROL - Experience a 10-channel system that allows for multiple IR setups without interference.
EASY INSTALLATION - Comes with mounting adhesive and extra IR cables for hassle-free setup.
COMPATIBILITY CHECK - Ensure your remote is IR compatible for the best experience.
PRECISION PLACEMENT - For optimal performance, attach the emitter directly above your devices' IR receivers.
VERSATILE CONNECTIVITY - Includes USB and AC power cables for flexible installation options.

The Sewell BlastIR Wireless Pro Emitter is a cutting-edge IR remote control extender designed to enhance your home entertainment setup. With a 10-channel system, it allows for multiple IR configurations without interference, ensuring seamless control of your devices. The package includes essential power cables and mounting accessories for easy installation, making it a must-have for tech-savvy users looking to optimize their remote control experience.

Specifications

ASIN	B074CPBDXV
Audio Output Mode	Stereo, Surround
Audio Output Type	Speakers
Best Sellers Rank	#149,559 in Electronics ( See Top 100 in Electronics ) #173 in Remote Control Extenders
Brand	Sewell
Built-In Media	IR Emitter, IR Emitter Cable, Power Supply
Compatible Devices	Speaker
Connectivity Technology	USB
Connector Type	USB
Control Method	Remote
Controller Type	remote
Customer Reviews	3.7 out of 5 stars 39 Reviews
Format	WMA
Global Trade Identification Number	00685289229887
Manufacturer	Sewell Direct
Mfr Part Number	SW-32988-TX
Model Number	SW-32988-TX
Number of Channels	10
Other Special Features of the Product	Multiroom
Output Power	5 Watts
Output Wattage	5 Watts
Special Feature	Multiroom
Supported Internet Services	Map
Surround Sound Channel Configuration	10
UPC	685289229887
Video Encoding	H.264, H.265/HEVC, MPEG-4
Warranty Description	1 year
Wireless Technology	IR

Reviews

K**Y

23.12.2021

C**S

9.03.2026

A**R

28.07.2025

S**L

29.08.2021

M**H

4.09.2025

I**H

28.12.2018

A**R

11.10.2022

T**M

25.07.2024

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