AKG Acoustics B 29L specifications Specifications, Features

B 29L

Power Supply and Mini-Mixer for MicroMic III Series

Description

The B 29 L is a small portable power supply/mixer that accommodates two microphones in the MicroMic III series (except the D 409 L which needs no power supply). Each input has a gain control for balancing output levels. The device is supplied with a clip that fastens it to a belt or guitar strap. It uses a single 9-volt battery, providing an average life of 50 hours. The output of the B 29 L can be switched either to mic or line output level, depending on the downstream requirement. Both inputs to the B 29 L are mini-XLR-F, and the output is a standard XLR-M.

The B 29 L effectively makes one output out of two. It is indispensible with small mixers, where it can expand the number of available inputs. In addition, many small mixers do not have phantom powering. The B 29 L offers an attractive solution for this problem.

Specifications

Power supply:	9 V-Alkaline Block
Current consumption:	max. 10 mA
Battery Life:	50 h +/- 5 h
Input channels
(Mini XLR-F):	2
Max. Input level:	0 dBV
Input impedance:	5 k ohm
Input attenuator:	-50 dB
Output:	XLR-M phantom power protected
	(max. 55 VDC)
Max. output level:	0 dBV +/- 1 dB @ k < 1% and Ubat
	= 9 V
Output impedance:	typ. 200 ohm unbalanced
Gain MIC:	0 dB +/- 1 dB
Gain LINE:	40 dB +/- 2 dB
Noise MIC:	<8 uV (A)
Frequency response:	20 to 20 kHz
Temperature range:	-32° F - 140° F (0° C - 60° C)
Humidity:	93% @ 140° F (40° C)
Size (W x D x H):	3.7 in. x 2.6 in. x 1.1 in.
	(94 x 67 x 27mm)

Features

•Powers one or two MicroMic Series III condenser L-version microphones

•Provides gain control for each microphone

•On/Off switch with LED status indicator

•Standard XLR male output connector

•Output level mic/line selector switch

Weight incl. batteries: 4.8 oz. (135g)