- 6 -
Setting the RAM buffer
There are three settings for the RAM buffer. The options are as follows;
Buffer applied Display
No buffering - 0BUFF
Minimum buffering - MIN
Maximum buffering - MAX
The receiver chip takes the data from the transport and generates clocks and data in a form that the
filter can accept. This has two major benefits – all digital data extraction and a RAM buffer. This RAM
buffer sequentially takes all the data, retimes it, and sends it out. The RAM buffer allows the jitter free
local clock operation without needing to send back a clock signal to the data source.
There is however a word clock output located by the power connector on the rear of the QBD76.
N.B. When using the QBD76 with the buffer set to anything apart from 0BUFF there is a time delay
from pressing “Play” to hearing music. Whenever switching between the different buffer settings there
is a delay another delay before the music resumes.
N.B. It is important to set the volume on the pre-amp/amplifier to minimum when switching between
digital inputs or setting the Ram buffer on the QBD76.
Product Specification
HARMONIC DISTORTION < -103dB
SIGNAL TO NOISE RATIO >120dB
CHANNEL SEPARATION >125dB @ 1KHz
DYNAMIC RANGE 122dB
DIGITAL INPUTS 2 x Plastic fibre optic
2 x AES Balanced XLR input
2 x 75ohm SP/DIF2 BNC coax
1 x USB B
1 x wireless Bluetooth (A2DP format)
ANALOGUE OUTPUTS 2 x RCA Phono
2 x Balanced XLR
RAM BUFFER SWITCH sequences between; No buffering, Minimum buffering and
Maximum buffering
SAMPLE FREQUENCIES 44.1Khz, 48Khz, 88.2Khz, 96Khz, 176.4Khz or 192Khz
OUTPUT MAX 6V rms. Balanced. 3V rms. unbalanced
OUTPUT IMPEDANCE 75ohm (short circuit protected)
DIMENSIONS IN MM 338 x 60 x 145mm (Width x Height x Depth)
excluding the 14cm antenna
WEIGHT 7Kg
To Previous Page
Loading...
