If a very powerful subwoofer - in a cabinet that is not too big - is required,
we must remember that this subwoofer has to move lots of air as well. The
SPH-380 TC is quite capable of doing that with a peak linear displacement
volume of 960 cm3 (diaphragm surface area x voice coil overhang).
The driver features a twin voice coil with 2 x 4 Ohm, a power handling of
500 Watt RMS and was tuned for use with a small cabinet.
The picture below, left shows how the subwoofer performs in a bass reflex
and in a closed cabinet version. The closed cabinet version shows a clearly
more accurate bass - but without going that low. The maximum sound pressure
level at lower frequencies, however, is considerably higher when using the
bass reflex version (in our example the sub is optimally tuned for bass reflex).
The low bass properties of Audaphon AMP-24 with digital signal processor and two power amplifiers,
which are used in bridged mode are adjustable. We recommend, however,
to use the neutral setting first. We believe it's the best setting
for low bass.
The plate amplifier provides:
Additional information on digital signal processors (DSP):
what is a DSP?, Tuning according to room conditions
and Examples Of DSP use (e.g. in subwoofers).
The SPH-380/BR kit contains:
- 1 x Monacor SPH-380 TC bass driver
- 1 x Audaphon AMP-24
- 1 x mat N25 napped foam
- 8 x Allen wood screws 4x25
- building instruction
Price of bass reflex version SPH-380/BR without cabinet:
- not available (_)
Building Instructions (in German language)
If you don't need very loud sound reproduction, and if you don't need a digital signal processor,
we recommend the amplifier Mivoc AM 80 MK II.
Technical data of Mivoc AM 80:
- output: 80/160 Watt into 4 Ohm
- cut-off frequency: adjustable 50-150 Hz, 12 db/oct
Subwoofer module Mivoc AM 80 is a module with
gain control, cut-off frequency control and phase inversion switch.
RCA sockets (to connect to pre-amp out) and binding
posts (to connect to the main amp) are available. The satellites may be
looped through the module. Required cut-out
see description of the module.
Order No. str-b-sph380-am80, Price for one subwoofer kit with amplifier AM80 (without cabinet):
EUR 388,94 excl. VAT: € 335.29 / $ 392.29