SKU: 64915599237

Db Technologies SUB 612 Active Bass-Reflex Subwoofer 600W RMS Power - 12"

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Description

Db Technologies SUB 612 Active Bass-Reflex Subwoofer 600W RMS Power - 12"dB Technologies releases SUB 612 to complete SUB 600 active subwoofer family. The new model aims to create complete PA system making the most of dB Technologies' smaller full range systems such as OPERA 10 and B H 8 and 10. Just like 15" and 18" models of the family, bass reflex SUB 612 features a 600W RMS Class D Power Amplifier with SMPS, delivers outstanding sound pressure levels (up to 129 dB) in spite of a very compact housing (only 43. 65 lbs)

dB Technologies releases SUB 612 to complete SUB 600 active subwoofer family. The new model aims to create complete PA system making the most of dB Technologies' smaller full-range systems such as OPERA 10 and B-H 8 and 10. Just like 15" and 18" models of the family, bass-reflex SUB 612 features a 600W RMS Class-D Power Amplifier with SMPS, delivers outstanding sound pressure levels (up to 129 dB) in spite of a very compact housing (only 43.65 lbs) and provides an impressively precise low-end reproduction.

Sub 600s' remarkable audio performance allows user to build most of the PA systems with 1 single sub and 2 full range speakers, avoiding any external processing or crossover thanks to separate balanced X-Over signal feeds to left and right speakers. Controls on the amp panel allow user to operate with Mono or Stereo audio feed, activate polarity inversion and choose Outputs link mode (True Bypass or X-Over). Whenever a further punch is needed, a low-frequencies boost EQ can be set thanks to the Sub BOOST Mode switch.

dB Technologies SUB 612 Features

  • 600W RMS Class-D Amplifier
  • Stereo balanced input
  • LINK or X-Over balanced stereo output mode
  • Compact and sturdy wood cabinet
  • Lightweight
  • Polarity inversion switch
  • FLAT or BOOST EQ mode switch

Technical Data

  • Type: Active 12" subwoofer
  • Frequency response: 46 - 123 Hz
  • Max. SPL: 129 dB
  • Polar pattern: Omnidirectional
  • LF: 12" with 2.5" voice coil
  • Amplifier type: Class D power amplifier
  • Power: 600 W RMS / 1200 W Peak
  • Controller: DSP 28/56 bit
  • Limiter: RMS, Peak, Thermal
  • Signal input: 2x XLR
  • Signal output: 2x XLR
  • Cabinet: Black plywood
  • Handles: 1x top
  • Pole Mount: M20
  • Width: 360 mm
  • Height: 550 mm
  • Depth: 525 mm
  • Weight: 19.8 kg
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SKU: 64915599237

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C
Verified Purchase
C. Brown
Pawtucket, US
★★★★★ 5
Good DNS reference
Format: Paperback
The Book is a good reference for BIND9 DNS administration. Although, at this time, it's a bit outdated. It wasn't written to reference DNSSEC, or other new configurations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2025
A
Verified Purchase
Alexander
Phoenix, US
★★★★★ 4
Overall it was an OK book. I am already ...
Format: Paperback
Overall it was an OK book. I am already "competent" with DNS, specifically the BIND9 implementation but I got the book as reference material since the official documentation is a little sparse. The fifth edition (not sure about the others) even covers, albeit a little too briefly, how to deal with reverse lookup zones with subnet masks that do not fall on octet boundaries.
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Reviewed in the United States on July 31, 2015
D
Verified Purchase
Dan
Fort Morgan, US
★★★★★ 5
Domain Names...Serves us!
Format: Paperback
This is the most complete and must-have DNS book i've ever seen before. Nor only prepares you to understand every basic and some advanced issues about DNS, it also shows a lot of "tricks" with the most powerfull and well know - famous DNS implementation!: BIND. If you are a beginner in the DNS world, this is a good step towards become an expert, if you're already an expert this guide will surely show you a lot of useful information in your daily DNS administration problems. Definitely, this was one of my best investments on my way to become a site administrator.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2011
P
Verified Purchase
Pzano
Fort Morgan, US
★★★★★ 5
Thicker than I anticiapted
Format: Paperback
The encyclopedia of DNS books, meaning thicker than a phone book. I like the fact that this book is thick but so easy to read and follow along with. If you know nothing about DNS, this book makes it easy to learn about DNS. It starts with the history of DNS and then explains the hierarchy of the DNS tree. A must read if you want to improve your understanding of the internet and what happens under the hood for name resolution.
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Reviewed in the United States on February 7, 2014
T
Verified Purchase
Tracy
West Palm Beach, US
★★★★★ 5
Best practical book on DNS and how it works
Format: Kindle
I was interested in finding out more about how DNS is deployed and operated in practice. The first few chapters in this book deliver very well in this regard. My motivation was to find out more about how a certain type of Internet attack -- the "open DNS resolver attack" -- works. Even though this book was written well before this attack became popular and well known -- and therefore the attack is not mentioned, let alone analyzed -- the book was still quite helpful to me.
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Reviewed in the United States on June 1, 2014

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