Amplifier Module(S); Driver(S) And Acoustical Response; Cabinet - Klein + Hummel 0810 Bedienungsanleitung

Two hardware remote controls (SRC 1 and SRC 2) are available from Klein + Hummel together with various
lengths of high-quality CAT-5 cable with EtherCon connectors (RC nn). The signals on the cable are as follows:
For connection options see Volume Control section. A * indicates RS-232 data connections.
Finally, there is a VOL stage to control the output level of the subwoofer.

Amplifier Module(s)

The O 810 has one amplifier module. The O 870 has two amplifier modules – one for each driver. The amplifier(s)
use D-class technology to minimize heat dissipation and are run in bridged mode to minimize distortion. Even so
some space (5 cm, 2") is required around the electronics panel. In other technical aspects, such as harmonic
distortion, intermodulation distortion, and noise, the performance is as good class AB designs.

Driver(s) and Acoustical Response

The driver(s) are the best available for their application. Long throw, efficient, low distortion drivers ensure a
clean sound quality even at high replay levels. The driver(s) is/are loaded by the internal volume of the cabinet
and is/are magnetically shielded for use next to CRT screens and magnetic storage media. The system's
SPL output and the cabinet volume can be seen in the Specifications section below.
Klein + Hummel subwoofers are designed to have a flat pass band magnitude response in anechoic conditions
when all the acoustical controls are set to 0 dB. When a subwoofer is installed into a listening environment the
response changes and thus should be corrected back to a flat response. It is therefore expected that the
acoustical controls will need adjustment to improve the in-situ response of the subwoofer. The acoustical
controls' settings depend on the subwoofer's location and will probably be different for the same subwoofer type
installed in different locations in the same room. Moving the cabinet small distances, 50 cm (20"), can
dramatically change the response therefore resulting in different acoustical control settings.

Cabinet

The wooden cabinet is painted using a standard RAL color. An appropriately colored pen can be used to touch up
the paintwork if it is scratched during transport or use. The following RAL numbers correspond to K+H standard
cabinet colors.
Rubber feet reduce the risk of scratching the cabinet and provide some mechanical isolation from the floor.
The acoustical axis is a line normal to the subwoofer's front panel along which the microphone was placed when
tuning the subwoofer's crossover during design. For subwoofers in the Klein + Hummel range, the acoustical axis
is located on the mid-point of the driver(s).
Product
O 810
O 870
Operating Manual O 810 / O 870
Remote Control Function
Volume Control
LOGO Voltage
GND *
RS 232 TX *
RS 232 RX *
Supply Voltage +3.3 V
Bypass Bass Management
+10 dB LFE Gain
K+H Color Name
Anthracite
Silver
x dimension
16.5 cm (6 1/2")
16.5 cm (6 1/2")
English
RJ-45 Pins
1
2
3
4
5
6
7
8
RAL Number
7021
9006
y dimension
17.0 cm (7 1/2")
36.0 cm (14 1/8")
Klein + Hummel
12