Author Archives: Andy Kos

Eminence NSW6021-6 21-inch Tour Grade Subwoofer

“Introducing the 21-inch Tour Grade American Muscle subwoofer, the ultimate solution for music lovers and audiophiles alike. Experience the powerful, deep and accurate bass that will take your listening experience to the next level. This subwoofer is engineered to deliver outstanding performance and durability, making it the perfect choice for your music setup.

With its advanced measurement systems and FEA optimization tools, this subwoofer provides unrivaled displacement and high power handling, making it one of the highest output subwoofers on the market. The 6-inch voice coil, combined with the neodymium magnet, delivers the power and precision needed for even the most demanding listening sessions.

Eminence’s NSW6021-6 subwoofer is designed to impress, featuring a sensitivity of 97 dB and an Xmax of 21 mm, it delivers outstanding SPL, making it perfect for even the largest of rooms. With its 6-ohm impedance and 2,500 watts RMS power, this subwoofer is easy to drive, making it the ideal choice for music aficionados.

So, why wait? Upgrade your listening experience with Eminence’s Tour Grade American Muscle subwoofer and enjoy the deep, powerful bass that you deserve. Your music will never sound the same!”

https://www.bluearan.co.uk/index.php?product=Eminence_Tour_Grade_NSW6021-6_21_inch_6_Ohm_Neodymium_Speaker&id=EMINSW60216

The Eminence NSW6021-6 is a 21-inch professional subwoofer designed for extreme output capability and minimal distortion. It features a 6-inch voice coil that can handle up to 2500 watts AES (5000 watts program, 10,000 watts peak) power, providing unrivaled displacement and high power handling. The subwoofer’s neodymium magnet and advanced design results in a sensitivity of 97 dB and Xmax of 21 mm, making it one of the highest output subwoofers ever made.

The NSW6021-6 also boasts a True double spider suspension, which keeps the cone linear even under high excursion. Its 6-ohm impedance provides an easy load for most amplifiers and its X5 pulp cone and dust cap provide the strength and rigidity required to support the excessive amount of force produced by the voice coil and motor.

The Thiele & Small parameters for the subwoofer include a resonant frequency of 29 Hz, , mechanical Q of 15.35, electromagnetic Q of 0.31, and a total Q of 0.31. The subwoofer has a compliance equivalent volume of 224.58 liters,, and a maximum linear excursion of 21 mm.

For mounting, the subwoofer has a recommended vented enclosure volume of 155-480 liters. It weighs 48.1 lbs and is constructed with a copper voice coil, fiberglass former, neodymium magnet, vented motor, and die-cast aluminum basket. The cone and dust cap are made of wet-pressed X5 pulp, and the cone edge is made of advanced Polycotton surround.


dB-Mark : DP vs XCA

With both the DP Series and XCA series sporting the same set of features, we frequently had customers asking what the difference was, and which one is best for them.

After a few years of the DP series always being the underdog to the XCA series, and all the new improvements being applied to XCA series only, it reached a point where the guys at dB-Mark thought it was time to simplify things, to make life easier for everyone. Previously the DP series and XCA series required separate software, and the configuration files were not interoperable. With the introduction of the + models on both DP and XCA, all this is history.

You can now use the same software to copy settings to and from DP series and XCA series, so once you have a system configuration, you can apply it to any model. All the newer features from the XCA series have now been applied to the DP Series, and they both now boast an impressive set of features:

  • Compressor and Noise Gate on all input channels
  • Dynamic EQ on all input channels
  • 6 Parametrics EQs per channel (input and output) with Hi-Shelf and Lo-Shelf
  • 96kHz Sampling Frequency
  • Configurable compressor and Limiter on each output channel
  • 1st and 2nd Order All Pass Filters
  • Bessel, Butterworth and Linkwitz-Riley filters up to 48dB/octave
  • 24 bit A/D and D/A conversion
  • Fully configurable matrix, link any input to any output

So what’s the point in having two ranges exactly the same? Well, they’re not identical, there are some subtle differences, essentially the DP series is intended as a high quality option for lower spec applications and to be affordable for entry level sound systems. The XCA Series has a few improvements, putting it firmly into the top end of the Pro Audio.

Balanced Outputs. The DP Series uses impedance balancing, its a common solution for budget audio, used by many audio manufacturers to keep costs down. The benefits of balanced cable are retained, but without using a ‘true’ balanced output. There is only the ‘hot’ signal, and the ‘cold’ inverted signal on pin 3 is just linked to ground through a resistor. The XCA series has true active balanced outputs, with both hot and cold signals present. For short cable runs, (ie within an amp rack) there is little difference between these solutions, and chances are you are already using audio gear with impedance balanced outputs – but you just dont know it! – if you want the best – the XCA series is the choice.

Sound Quality. In their quest for optimum sound quality, dB-Mark took a no expense spared approach to components, and looked for the highest quality D to A and A to D converters, and premium op-amps to ensure maximum quality, and lowest distortion and noise. This is the key difference between the two ranges, and the higher quality of the XCA series allows it to compete with some of the best audio processors in the industry, with many of our customers putting them on a par with units costing 2 or 3 times as much.

DAC/ADC: DP series utilises the ES9018K2M DAC, the XCA series makes use of the PCM1798 DAC chip, which is used in audiophile grade CD Players. DP series has the PCM1804 ADC, and the XCA series uses the PCM4202. The XCA has been designed to give greater dynamic range, lower distortion and lower noise.

Ready to buy? Check our website now: https://www.bluearan.co.uk/index.php?manufacturer=dBMark&masthead=System_Controllers&subheadnew=Digital_Lms