Seeburg Acoustic Line TSM Sub dp+

Active High Power Subwoofer

  • Components: 15" Neodymium woofer
  • Power: 2 x 1000 W amp
  • Built-in HDLM FPGA processing, 32-bit floating point DSP with 3 presets
  • XLR input and output
  • Speaker Twist output
  • Cardioid mode
  • SPL: 131 dB
  • M20 speaker flange
  • Power Twist input and output
  • Dimensions: 515 x 470 x 560 mm
  • Weight: 25 kg

Further information

Design Front Loaded
Flyable No
Pole Mount Yes
Wheels No
Woofer size 1x 15"
Power 1000 W
5 customer ratings:
  • 5
  • 4
  • 3
  • 2
  • 1
4.6 / 5.0
  • features
  • handling
  • sound
  • quality
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Dream facility Seeburg TSM ... Advantages & disadvantages

DORA Music, 17.07.2012
My Seeburg sound system consists of: 2x TSM Sub DP + (active); 2x TSM Top 10 "(passive) This is my review:

Positive 1: Sound.
Everything I've tried so far (HK Lucas, BOSE L1 Model 1, RCF 310, 315 and 412 fullrange speakers, DB Technologies FortyLine, ...) is no comparison to the sharp and detailed sound of the Seeburg sound system. All the other sound systems mentioned (in comparison) always sound a bit queasy and somehow indistinct.

With this sound system one understands language and singing much better; One also hears the individual instruments much more precisely; Even the hall does not look so blurry. What has a particularly positive effect in an acoustically difficult environment (bad sounding room ...)!

While I used to have a lot of work on the EQ in order to achieve a suitable sound (transparent & printable) (even on the keyboard, I had to screw up the EQ at the time), the Seeburg facility sounds almost "as if by itself". A little EQ at the singing - and already everything fits. My two guitars are mostly EQ - it's never been before! On the keyboard would be an EQ in itself not necessary - but mostly I give 2-3 dB of basses (we play without drummer and bassist).

Positive 2: Range.
The range or sound distribution of this system is also very good. In comparison, the Bose-Anlage was too loud in the front and quiet. Everything fits much better here. Even the (in the background quietly playing) breaks-music was often too loud at the Bose-Anlage in the front and hardly audible at the back. With the Seeburg-Anlage even the quiet break music in the front is not too loud and in the rear still still good to hear.

Positive 3: Radiation of the basses to the front.
The special low-frequency output of the sub-DP + (adjustable in the rear) actually has the effect that the stage is significantly less disturbed by the deep noise. As a result, you can hear yourself (for example, guitar and vocals) much better from your own monitor.

Positive 4: Operation & Handling.
The settings at the rear of the sub (setting the frequency at 180 or 120 Hz, setting the power to + 3dB, 0dB, -3dB, -6dB) I find well solved and easy to use. (Note: I set the system mostly to 120 Hz cut-off frequency, to +3 dB power, plus kidney-bass radiation.)
The carry handles are cleverly designed; And the weight of the bass box is - for this sound & this performance - about 25 kg fantastically light!

Not so good 1: On-off switch is missing!
This sound system does not have an on-off switch. I have not experienced such a thing at any sound system - and I've been playing for 25 years!
Mute is already active (Mute On); And you have to hold down the "Set" button for 2 sec. Mute Off: Press the "Set" button again.
Remedy / My trick to switch off: Turn the blue Powercon cable a bit to the right, as if you wanted to take it off, but leave it stuck. Switching on: Turn the Powercon cable a little to the left so that it engages again - the system is switched on.

Not so good 2: bass performance.
The bass could be a more powerful track - as described above. But maybe 2 subs to a top already "the" remedy to it ...

Not so good 3: price.
Admittedly, the facility is not cheap. But, let's be realistic: excellent German professional quality is not just a bargain price ...

Because my criticism is on a very, very high level, I still give 5 stars (total). The 4 stars with the features result from the fact that the box does not have an on / off switch.

The Seeburg TSM is the right sound system for those who prefer a CD-like, balanced, transparent and extremely detailed sound. For bass freaks, on the other hand, who would like to let down "drone" around, I think there are definitely better alternatives.
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TSM Sub dp +

Jan418, 22.04.2016
Have the bass now some time in use us can only say that it is really a super part.
I have not heard of such a compact and light bass, but this punch and depth still brings it.
Especially great is the second Speakon exit. In addition to the Passiven brother can be very easy to connect a top section and so a 2-way system without external crossover and power stage can build (in my case, the TSM 10 from Seeburg).
When you get used to the controls with the buttons, setting the transition frequencies and the volume is also very easy.
The only downside is that there is no on / off switch.
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