Burmester 931 RDS specifications

Category : Tuner

Brand : Burmester

General

connectors

Technical data

special features

functions:

Other models from the same series:

manufacturer: Burmester
model: 931 RDS
year of construction:
Made in Germany
color: chrome Front, black housing
remote control: Yes (optional)
power consumption: 13.5 W
dimensions: 482 x 95 x 280 mm (WxHxD)
weight: 6.6 Kg (manual), 9 Kg (product brochure)
factory price approx.:

number of outputs (3):
- Stereo unbalanced (2 x RCA)
- Stereo tape deck asymmetric (2x RCA)
- Stereo balanced (2 x XLR )
number of inputs (2):
- 2x UKB antenna input (IEC , 1x steamed)

Stereo unbalanced (2 x RCA)
Stereo tape deck asymmetric (2x RCA)
Stereo balanced (2 x XLR )

2x UKB antenna input (IEC , 1x steamed)

channels: (FM)
frequency:
- FM: 87.5 - 108 Mhz
frequency response: 20 Hz - 15 kHz
input sensitivity:
- Mono 4.2 dB/µV (30 dB SNR)
- Stereo 42dB/µV (50 dB SNR)
total harmonic distortion: 0.007% (THD + N)
signal-to-noise ratio: 80 dB (70 dBA at 1 kHz)
channel separation: 60 dB (55 dB at 1 kHz)
selectivity:
frequency selection:
in addition to the wave selection:
mirror frequency attenuation:
ZF-attenuation:
ON-rejection: 90 dB (38 kHz)
output level:
RDS: Yes station identification
station memory: 60

FM: 87.5 - 108 Mhz

Mono 4.2 dB/µV (30 dB SNR)
Stereo 42dB/µV (50 dB SNR)

input amplifier with Gallium arsenide Transistors with 1 GHz cutoff frequency, linear-phase response and constant group delay
Seven tuning circuits for a high-selecting the reception frequency
Active High-Level mixer with an Intercept point 3. Regulation (Typ. +30dBm) for high intermodulation resistance (most complex military radio technology)
Wide-ZF (IF) bandwidth approx. 400kHz (typical bandwidths 200-250kHz)
- For a soft sound image with two phase-linear, broadband 8-circuit LC bandpasses filtered and decoupled by amplifiers
- Balancing of the IF to a total of 24 Filter s
- IF amplifiers are operated with a balanced power supply
Using two separate stereo decoders!
- Making each channel separately optimized and minimal crosstalk compared
power supply can be:
- stray-field low to avoid the ring core transformer with a capacity of 50VA
- screen total capacity of 29000µF alone in the power supply
- Four separate voltage regulator directly to the circuit stages for stable voltage conditions in the Frontend
- Additional elaborate stabilizing the tuning voltage with a specific capacity of 8000µF
- decoupling of the supply voltage of the front-end through a special Filter to an Overlay of the supply voltage, the NF-stage HF
LF amplifier: Symmetrical, discrete and DC-coupled Burmester X-Amp stages (Class A) with Offset-control loop
- Additional screening of the X-Amp-stages, with a total of 55000µF
- No Relay in the NF-pathway, while Muting the output to ground short -
XLR occupancy from closed deviates from the Standard, and is: 1 = ground, 2 = Signal, 3 = Signal +

For a soft sound with a two-phase linear, broadband 8-circle-LC-band passports filtered by amplifier
balance, ZF decoupled to a total of 24 Filter s
if-amplifier with symmetrical power supply

Making each channel separately optimized and minimal crosstalk compared

scattered field can be poor, ring core transformer with a capacity of 50VA
operated Sieve capacity of a total of 29000µF alone in the power supply
Four separate voltage regulator directly to the circuit stages for stable voltage conditions in the Frontend
Additional elaborate stabilizing the tuning voltage with a specific capacity of 8000µF
decoupling of the supply voltage of the front-end through a special Filter to an Overlay of the supply voltage, the NF-levels with HF to avoid

Additional screening of the X-Amp-stages, with a total of 55000µF
No Relay in the NF-pathway, while Muting the output to ground is shorted

Display-Off
field strength indicator, with eight illuminated segments
Burmester remote control:
- direct frequency input via keypad
- station directly corresponds to input via numeric keypad
- Station selection keys to Station - and + (of the STATION buttons on the device)