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 The PRE32 is an
upgradable audiophile pre-amplifier
designed to match the Primare A34.2
and all Primare power amplifiers. It
features the comprehensive OLED
display and control parameters
established by the EISA
award-winning I32 integrated
amplifier. The PRE32 is housed in a
heavy gauge alloy steel chassis, and
incorporates two pairs (L/R) of
low-noise balanced XLR inputs and 4
pairs of RCA inputs. In addition
there are two pairs of RCA outputs
and a single pair of balanced XLR
outputs, as well as a record output,
RS232, trigger, IR and RF inputs.
The option of an upgrade board
offering MEDIA/streaming connections
such as USB, iPod, LAN etc., is
provided.
Audiophile Topology
All signal paths are fully balanced
and as short as possible. All signal
treatments (source selection, volume
and channel balance trims) are
performed purely in the analogue
domain. Unbalanced inputs are
converted to balanced signals by a
conversion stage buffered by the
excellent sounding Burr Brown
OPA2134 op-amps and fed to volume
and balance controls employing
closely matched NJW1195 attenuators
in a balanced configuration. Source
selection is via high performance
signal relays. Balanced signal
transmission means that two
identical signal lines are used to
carry the same signal with opposite
phase. Any noise is common to both
lines, is present in equal amounts
and with identical phase. At the
receiving end a (differential)
receiver retains the opposite phase
signals (music) and rejects the
common phase ones (noise) leaving
only the pure original signal.
Balanced circuits therefore keep the
signal as free as possible from
interference.
The four (L/R balanced) single-ended
16dB gain stage modules are fully
separated. Each has its own
proprietary PCB, incorporating a
custom designed copper heat sink,
which also acts as a shield. The
gain module layout incorporates
ultra-short signal paths and only
the finest discrete components such
as MOSFET transistors, MELF
resistors and polypropylene
capacitors. Active, well-balanced
current sources are used instead of
passive resistor networks. The PRE32
is DC coupled from input to output.
There are no capacitors in the
signal path. Instead active DC
servos are used to compensate for
any DC present, ensuring that the
outputs are always free from DC
components. All the front panel
control components are kept well
separated from the analogue part of
the PRE32 by the front panel’s
intuitive design: the electronics
are placed between the
front panel and the main steel
chassis. Ultra
low-power standby
The PRE32 incorporates a very
low eco mode for standby. Power
consumption is just 0.2W. In order
to minimise high frequency
components originating from the
standby power supply (high
performance switch-mode) when the
PRE32 is in operation, the standby
supply is switched off when the
PRE32 is powered up, and a discrete
linear power supply consisting of
only the finest discrete power
supply components and an Rcore mains
transformer, takes over. Analogue
and digital power supplies are kept
well separated. For the analogue
side a discrete ultra-fast voltage
regulation circuit using discrete
power transistors is used. The power
supply capacitor bank is large
(25.000uF) and for lower ESR and
best performance, is divided between
many smaller capacitors. These
measures have produced extremely
good THD+N and S/N ratio figures for
the PRE32.
Upgradeable Design
A media upgrade will be
available, which offers up to 24
bit/192 kHz streaming of files from
Internet, NAS or PCs, as well as
Internet radio content and also
digital audio input from a range of
devices including CD players, smart
phones, personal players, sat boxes
etc.
 UPGRADE
A high quality aptX Bluetooth
upgrade for the PRE60 preamplifier,
NP30 network player and the MM30
equipped network streaming versions
of the I32 integrated amplifier and
PRE32 pre-amplifier. It takes the
form of a small internal circuit
board and external antenna (for
improved reception), which installs
easily, the threaded antenna input
replacing the FM/DAB terminal on the
MM30 fascia and using a vacant (pre-prepared)
portal on the back panel of the
PRE60 and NP30.
For compatibility with Primare’s
high-performance audio design, the
receiver-only module supports high
quality Bluetooth via aptX, AAC, MP3
but rather than use an integrated
DAC (as employed by other BT
upgrades) the output is fed to the
product’s own Sample Rate Converter
and up-sampled to 192kHz for optimum
performance through the existing
high resolution DACs. In this way
Primare’s Bluetooth Upgrade is among
the most audiophile available,
adding excellent Bluetooth sound
quality to the convenience of
wireless Bluetooth connections.
Following an easy software update
via the PrimareApp, the BT input is
added to the product control menu in
a discrete BT section, which allows
for the renaming of the input for
the product display and the also the
BT connection. The OLED display will
show the device name and also
indicate if the device supports AAC
or aptX.
Bluetooth Product features
- Supports aptX, AAC, MP3 for high
quality Bluetooth audio.
- The upgrade comes with an external
antenna for better reception.
- The Primare BT Upgrade is a
receiver only. The incoming signal
is fed to the product’s SRC, is
up-sampled to 192kHz and then runs through the product’s high performance
DACs.
- Installation is easy; software
update is through the PrimareApp or
from the MENU.
- BT input is added to the product
MENU, BT-input name and Bluetooth
name are editable
- OLED display will show device
name.
- If the device supports AAC or aptX
it will pop up on the OLED display. Easy User
Interface
An easy set-up menu is available
via the PRE32’s graphical display,
which is dimmable in four steps. The
display auto-dims after a few
seconds and returns to programmed
brightness at the touch of a control.
Set-up includes power-up volume,
input re-naming (up to 6 characters),
input disabling and trim function
(volume and balance
De DAC/Media Module is een extra optie.
Meer info over deze module
vind u
hier >
 
Te gebruiken met de Primare App
voor IOS en Android
Meer info over deze app
vind u
hier >
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