Subwoofer SPH-380TC CB

Subwoofer SPH-380TC CB / BR High-quality subwoofer, either closed or bass reflex

High-quality, very precise playing subwoofer, optionally closed or bass reflex. -3dB at 29Hz. Equipped with the Monacor SPH-380TC and the active module Monacor SAM-2 or Hypex DS 4.0. Also very suitable for level fixed Heimkinoinstallationen.

Kit Subwoofer SPH-380TC CB / BR

Subwoofer SPH-380TC / CB with Monacor SAM-2

Characteristics

  • in-depth playback: -3dB 29Hz, -8dB 25Hz => closed with equalization + 5dB @ 32Hz, As a bass reflex execution, the identical draft is achieved without the need for a bass boost.
  • Closed (CB) or bass reflex (BR) possible
  • extremely precise
  • outstanding level stability
  • Maximum flexibility through choice between CB and BR

Applications

  • Highest quality stereo applications
  • Home theater in medium to large rooms
  • Studios and control rooms
  • Support for the most significant main speakers in the lowest octaves

Measurements

Closed or bass reflex?

The SPH-380TC does not sound much lower in a well-tuned bass reflex setup than in a closed design (with proper equalization), but may sound less precise.

The lack of draft in a closed design is compensated by an equalization (+ 5dB @ 32Hz) in the lowest frequency range by the active module. The downside of this is an increased power requirement.

In summary:

In terms of depth, the two variants do little to nothing. The closed version may play (still) a bit more precise, the bass reflex version is less power hungry and even better.

Suggestion:

Build the subwoofer in BR and make the tubes lockable! This way, all options remain open at all times.


Due to some inquiries:

  • The subwoofer definitely makes "wind" in home cinema, even in a closed design. 30 Hertz are easily reached and 15 inches with + -11mm linear hub are just a "house number" 😉
  • So that the subwoofer should be operated exclusively closed, the volume can easily be reduced to up to ~ 50Liter. The result would be a slightly lower draft (~ 2 dB less level at 30Hz).

parts list

  • 1x Monacor SPH-380TC
  • Active module Monacor Sam-2 or alternatively Hypex DS 4.0
  • Speaker sealing tape
  • screws
  • highly flexible OFC copper cable
  • Baumappe (blueprint, cut list)

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