Jamo Sub 650 Subwoofer

At the creating inexpensive subwoofers the Danish engineers borrowed some solutions from more expensive series. For example, JAMO SUB 650 can make boast of a 12-inch driver, allowing you to get a lower limit of 24 Hz. In this model everything is good with the amplifier too - this is a BASH pulse amp with a power of 650 watts. Such a scheme is approaching D class in efficiency, and in terms of quality indicators it approaches the classical AB. The port of the slotted bass-reflex port on the back panel ends with a smooth mouth. Its main advantage is increased efficiency at the lowest frequencies in small-size bodies.

For external switching JAMO SUB 650 has both linear RCA connectors (input and output) and high-level connectors (input only). Typical for active subwoofers, the set of settings is slightly extended. For example, there is a smooth phase adjustment and the Boundary Gain Compensation proprietary scheme, which minimizes the negative effect of the listening room.

According to its sound data, this sub is closer rather to a delicate classical performer than to a brisk and cheeky rocker. Dynamics is sufficient here; the spectrum of reproducible frequencies allows you to use the sub with acoustics of any volume. The attack is correct, but sometimes you want a little bit more energy in the lower part of the range. The separation of instruments and articulation (like the general sound resolution) is if not perfect, but very close to this. Corpuscular resonances are weak and do not affect sound. I really liked the Boundary Gain Compensation filter - a really useful and effective feature.