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Multi-Way Conventional loudspeakers with crossovers

SB Acoustics Satori MTM: MW16P-8 + TW29BN-B
SB Acoustics Satori MTM: MW16P-8 + TW29BN-B
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Old 10th August 2018, 12:56 PM   #1
88man is offline 88man  United States
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Join Date: Aug 2009
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Default SB Acoustics Satori MTM: MW16P-8 + TW29BN-B

Here's Troels' SB MTM D'Appolito speaker build. Instead of floorstanders, these speakers sit atop a stereo pair of subs. Maintaining front baffle width, the height was decreased, and the depth was increased to yield 40L. The cabinet measures 29.5in x 9in x 15in. Instead of 20mm, 25mm Baltic Birch was used on the sides and back, and 38mm black MDF for the front baffle.

Maturity of sound was achieved after 20 hours of break-in. Prior to this construction, I had built the Ellam D'Appos. It was only natural to compare the SBA MTM with the Ellam D'Appo. I was very impressed with the Ellam D'Appos. However, the SBA MTM is a clear uprade from the Ellam D'Appos offering greater transparency, dynamics, image, extension. The 15W mid is an exemplary driver of midrange clarity, smoothness, detail, and potent bass. Surprisingly, the 5.5in Ellam D'Appo delivers as much bass at half the volume of the 6.5in SBA MTM. The price is efficiency, as the Ellam D'Appo is 4dB less efficient than the SBA MTM-16s. Perhaps, the SBA MTM-16's drier bass could also be from its thicker enclosure and more bracing?

Compared to the heavier coned Scan-Speak 18W and 18WU midrwoofers in my other speakers, the light cone weight of the MW16 also produces faster transients and more transparency in the mids. The lack of compression in the mids at high volume is also impressive. The treble is where the SB MTMs higher sensitivity renders inner detail with more clarity, dynamic contrast. The Be tweeter offers more clarity, air, and blacker background than soft- or other metal-domes. The Be tweeter clearly shows more accuity and definition of timbre without smear or veiling of detail in highs. Overall, the soundstage is open, airy, and spacious. Tonality and timbre are well balanced.

The SBA MTM produces a neutral, coherent, detailed, dynamic, open, airy, spacious sound. These speakers are equally suited for analog or digital sources, and solid state or tube gear due to its spectral balance and sonic neutrality. The high efficiency makes them ideal for my KT88 push-pull amp as the difference can be heard.
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Last edited by 88man; 12th August 2018 at 02:57 AM.
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Old 10th August 2018, 02:07 PM   #2
colmo is offline colmo  United Kingdom
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As a matter of interest are the subs sealed or ported.
If the subs are sealed do the ported my SB's integrate ok
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Old 10th August 2018, 07:14 PM   #3
88man is offline 88man  United States
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Quote:
Originally Posted by colmo View Post
As a matter of interest are the subs sealed or ported.
If the subs are sealed do the ported my SB's integrate ok
The Subs are sealed. The MTM can be played ported or sealed. I end up rolling a small piece of acoustilux for aperiodic tuning.
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