Absolute top tier DAC for standard res Redbook CD

JBL DD6700 specification.

Description Dual 15″ (380mm), three-way, floorstanding speaker designed for a superlative listening experience
Frequency Response 29Hz – 60kHz (half space); 45Hz – 60kHz (anechoic)
Recommended Amplifier Power 500 watts
Sensitivity (2.83V @ 1m) 96dB
Nominal Impedance 8 ohms; 5.0 ohms @ 80Hz; 3.0 ohms @ 40kHz
Crossover Frequencies (Hz) 150Hz (LF1 6dB/octave) 850Hz (LF2 24dB/octave) 20kHz (UHF 24dB/octave)
Ultrahigh-frequency Drive Components 1″ (25mm) pure-beryllium compression driver
High-frequency Drive Components 4″ (100mm) pure-beryllium compression driver
Low-frequency Drive Components Dual 15″ (380mm) three-layer, pure-pulp sandwich/foam core cone woofer
Height 43.7” (110.9 cm)
Width 38” (96.5 cm)
Depth 18.5” (47 cm)
Weight Weight: 313 lb (142.1 kg) / Shipping Weight: 383 lb (173.9 kg)
Finishes Rosewood or Maple

The lowest bottom frequency is 45Hz (anechoic). It is like bookshelf bottom end!

Hmmm, bass response seems to be a little suboptimal for the large drivers on these JBLs. G.

Abe- the MSB has the Quad DAC.

The JBL synthesis stuff has never focused on going super low. Even their theater speakers only go down to the mid 50's. It's a design philosophy, although if you hear their higher end speakers they don't sound like their limited. They are very natural sounding....

Who cares about JBL....

Isis set up?

Matt, it might depend on what you are playing on the speakers.... Electric bass as an example, is likely to be perfectly OK, it naturally blooms into the third harmonic while attenuating the fundamental, because of the relative shortness of the strings, and the natural inclination of the amplifiers used in the live venues.

But try to give such speakers some organ music extending downwaards into the 16,32, or 64 foot pipe ranks, or other bassus prufundus, like some orchestral string bass, large percussion, etc... and you are likely to get a somewhat unpitched bloom at the bottom instead of fundamental frequencies.

Probably euphonically pleasing to some.... Would drive me batty.

As you know, I am not even faintly in the market for new speakers. But spoiled as I am by the finely setup VA Die Muzik in my loft, I could not live with a bass compromise, as "natural" as it might seem prima face.

Rather, on purely hypothetical new speakers, I would seek even deeper bass, perhaps going down to the higher teens, still consistent with the pitch integrity and harmonic articulation that DIe Muzik are capable of delivering down to the lower twenties region.

G