Rupert Neve Designs Portico II User manual

Operations ManualOperations Manual
Portico II
Master Buss Processor

1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type
plug. A polarized plug has two blades with one wider than the other.
A grounding-type plug has two blades and a third grounding prong.
The wide blade or the third prong are provided for your safety. If the
provided plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at
plugs, convenience receptacles, and the point where they exit from the
apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with a cart, stand, tripod, bracket, or
table specified by the manufacturer, or sold with
the apparatus. When a cart is used, use caution
when moving the cart/apparatus combination to
avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or
when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required
when the apparatus has been damaged in any way, such as power-
supply cord or plug is damaged, liquid has been spilled or objects have
fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.
15. This apparatus shall not be exposed to dripping or splashing, and no
object filled with liquids, such as vases or beer glasses, shall be placed
on the apparatus.
16. Do not overload wall outlets and extension cords as this can result in a
risk of fire or electric shock.
17. This apparatus has been designed with Class-I construction and must
be connected to a mains socket outlet with a protective earthing
connection (the third grounding prong).
18. This apparatus has been equipped with a rocker-style AC mains power
switch. This switch is located on the rear panel and should remain
readily accessible to the user.
19. The MAINS plug or an appliance coupler is used as the disconnect
device, so the disconnect device shall remain readily operable.
20. NOTE: This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment
generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment o and
on, the user is encouraged to try to correct the interference by one or
more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the
receiver.
• Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for
help.
CAUTION: Changes or modifications to this device not expressly
approved by Rupert Neve Designs LLC, could void the user's authority to
operate the equipment under FCC rules.
21. This apparatus does not exceed the Class A/Class B (whichever is
applicable) limits for radio noise emissions from digital apparatus as
set out in the radio interference regulations of the Canadian Department
of Communications.
ATTENTION — Le présent appareil numérique n’émet pas de bruits
radioélectriques dépassant las limites applicables aux appareils
numériques de class A/de class B (selon le cas) prescrites dans le
réglement sur le brouillage radioélectrique édicté par les ministere des
communications du Canada.
22. Exposure to extremely high noise levels may cause permanent hearing
loss. Individuals vary considerably in susceptibility to noise-induced
hearing loss, but nearly everyone will lose some hearing if exposed to
sufficiently intense noise for a period of time. The U.S. Government’s
Occupational Safety and Health Administration (OSHA) has specified
the permissible noise level exposures shown in the following chart.
According to OSHA, any exposure in excess of these permissible limits
could result in some hearing loss. To ensure against potentially
dangerous exposure to high sound pressure levels, it is recommended
that all persons exposed to equipment capable of producing high
sound pressure levels use hearing protectors while the equipment
is in operation. Ear plugs or protectors in the ear canals or over the
ears must be worn when operating the equipment in order to prevent
permanent hearing loss if exposure is in excess of the limits set forth
here:
Important Safety Instructions
CAUTION AVIS
RISK OF ELECTRIC SHOCK. DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL
ATTENTION: POUR EVITER LES RISQUES DE CHOC ELECTRIQUE, NE PAS ENLEVER LE COUVERCLE.
AUCUN ENTRETIEN DE PIECES INTERIEURES PAR L'USAGER.
CONFIER L'ENTRETIEN AU PERSONNEL QUALIFIE.
AVIS: POUR EVITER LES RISQUES D'INCENDIE OU D'ELECTROCUTION, N'EXPOSEZ PAS CET ARTICLE
A LA PLUIE OU A L'HUMIDITE
The lightning flash with arrowhead symbol within an equilateral triangle is
intended to alert the user to the presence of uninsulated "dangerous
voltage" within the product's enclosure, that may be of sufficient magnitude
to constitute a risk of electric shock to persons.
Le symbole éclair avec point de flèche à l'intérieur d'un triangle équilatéral
est utilisé pour alerter l'utilisateur de la présence à l'intérieur du coffret de
"voltage dangereux" non isolé d'ampleur suffisante pour constituer un risque
d'éléctrocution.
The exclamation point within an equilateral triangle is intended to alert the
user of the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the appliance.
Le point d'exclamation à l'intérieur d'un triangle équilatéral est employé
pour alerter les utilisateurs de la présence d'instructions importantes pour le
fonctionnement et l'entretien (service) dans le livret d'instruction
accompagnant l'appareil. WARNING — To reduce the risk of fire or electric shock, do not
expose this apparatus to rain or moisture.
Duration,
per day in
hours
Sound Level
dBA, Slow
Response
Typical Example
8 90 Duo in small club
6 92
4 95 Subway Train
3 97
2 100 Typical music via head phones
1.5 102
1 105 Siren at 10 m distance
0.5 110
0.25 or less 115 Loudest parts at a rock concert
PORTABLE CART
WARNING

Table of Contents
Introduction
Block Diagram
Front Panel
Rear Panel
MBP Features
Specications
Limited Warranty
1
1
2
3
4
8
11

Rupert Neve Designs Portico II: Master Buss Processor
Thank you for purchasing the Portico II Master Buss Processor. We hope you enjoy using this tool as much as we have
enjoyed designing and building it. The Portico II Master Buss Processor features high-voltage discrete Class-A ampliers,
custom-wound Rupert Neve Designs input and output transformers, a stereo VCA compressor-limiter, and a Stereo Field
Editor.
1
MBP Block Diagram
Dep th
Wid th
EQ EQ
C on trol C on trol
Dep th In
Wid th In
Dep th EQ In
Wid th EQ In
SFE To C omp
Comp res sor A In
Comp res sor B In
FF/FB
Comp S/ C
Limiter S/ C
Thre sh Atta c k Re le a se
Ra tio Ble nd
C omp Lim
Sing le A mp lifier
Silk Silk+
Tex ture
Silk Silk+
Tex ture
HPF
S/ C Sen d / Retu rn
FF/FB
Comp S/ C
Limiter S/ C
Thre sh Atta c k Re le a se
Ra tio Ble nd
C omp Lim
Sing le A mp lifier
HPF
S/ C Sen d / Retu rn
In p ut
Tra n sfo rm e r
In p ut
Tra n sfo rm e r
Ou tput
Tra nsfo rm e r
Ou tput
Tra nsfo rm e r
M e te r
Ou tput
M e te r
Ou tput
R e d u c tio n
M e te r
R e d u c tio n
M e te r
Link
Pe a k Pe a k
Ha rd wire By pa s s Ha rd wire By pa s s
LEFT
RIGH T
LEFT
RIGH T

MBP Front Panel
2
24 22 20 18 16 12
6 0
REDUCTION
OUTPUT
24 22 20 18 16 12
6 0
REDUCTION
OUTPUT
50
40
30
20 mS 80 mS
70
60
0.5
0.4
0.2
0.1 S 3.0 S
2.0
1.0
50
40
30
20mS 80mS
70
60
0.5
0.4
0.2
0.1 S 3.0 S
2.0
1.0
0
-8
-20
-30dB +20dB
+14
+8 2:1
1.5
1:1 40:1
5:1
3:1 2:1
1.5
1:1 40:1
5:1
3:1
0
Min Max
0
Mono Wide
Min
Max
18
15
12
10 Off
+24
21
+10
0 +20
50
0 100 Min Max
+10
0 +20
50
0 100 0
-8
-20
-30dB +20dB
+14
+8
18
15
12
10 Off
+24
21
2 4 6 8
10 12 18 24
2 4 6 8
10 12 18 24
Bypass All
PORTICO II
Master Buss
Processor
SFE
Depth
CH A
Width
CH B
SFE to COMP
CHANNEL A RUPERT NEVE DESIGNS
FF
FB
SC
125 Hz
RMS
Peak
Comp
In
SC
Insert
SC
Insert
SC
125 Hz
LINK
FB
FF
RMS
Peak
Comp
In
Silk : Blue
Silk : Red
CHANNEL B
In In
Width EQDepth EQ
EQ EQ
WidthDepthRatio
Texture Limit dBu
Threshold
Blend %
Limit dBu
Ratio
Silk : Blue
Silk : Red
Blend %
Threshold
Gain dB Texture Gain db
ReleaseAttackReleaseAttack
CH A Master
Depth Depth Width Width
CH BCH A
HF
HM
LM
LF
HF
HM
LM
LF
POWER
Attack
31-detent potentiometer that adjusts
the Attack time of the compressor once
the signal has exceeded the threshold
Gain dB
31-detent potentiometer that
adjusts the Make-up Gain of
the compressor-limiter
Threshold
31-detent potentiometer that adjusts
the threshold of the compressor within
a range of +20dBu to -30dBu
Blend %
31-detent potentiometer that adjusts the
amount of compressed (wet) and uncompressed
(dry) signal. Fully CCW is dry signal only, fully CW
is compressed signal only
Release
31-detent potentiometer that adjusts the
Release time of the compressor once the
signal falls below the threshold
Limit dBu 31-detent potentiometer that adjusts the Threshold of the limiter within a range of +24 to +10 dBu
Texture
31-detent potentiometer that adjusts
the amount of harmonic saturation
when SILK Red or Blue is engaged
Ratio 31-detent potentiometer that adjusts the Ratio of the compres- sor within a range of 1:1 to 40:1
LINK Illuminated push-button switch that links Channel A and B, selecting Channel A as MASTER
Bypass All Illuminated push-button switch that engages the hard-wire bypass
SC Insert Illuminated push-button switch that engages the Side-Chain Send and Return jacks on the P2MB rear-panel for external processing
RMS/Peak
Illuminated push-button switch that
toggles between RMS and Peak modes
within the compressor side-chain
Comp In
Illuminated push-button switch that engages the Compressor- limiter into the signal path
SC 125 Hz Illuminated push-button switch that engages the side-chain 12 dB/octave Sallen Key High Pass Filter
SILK Illuminated push-button switch that toggles the available SILK transformer harmonic modes: OFF, RED, and BLUE
SFE to Comp
Illuminated push-button switch that sends the
SFE Depth information to CH A compressor, and
the SFE Width information to CH B compressor
Depth In
Illuminated push-button switch that engages
the SFE Depth processing into the signal path
Depth
31-detent potentiometer that adjusts the level of the
processed mid information within the M-S encoding
Depth EQ Illuminated push-button switch that engages the Depth EQ processing
Width EQ Illuminated push-button switch that engages the Width EQ processing
Width 31-detent potentiometer that adjusts the level of the side information within the M-S encoding
Width In Illuminated push-button switch that engages the SFE Width processing into the signal path
Depth EQ 4-position rotary switch that selects the Depth EQ frequency band selection: LF, LM, HM, HF
Width EQ 4-position rotary switch that selects the Width EQ frequency band selection: LF, LM, HM, HF
Level and GR Metering
16-segment LED bargraph metering for monitoring
Gain Reduction (dB) and Output Level (dBu)
POWER Front-panel latching push-button power switch

MBP Rear Panel
3
P2MB-00001
Rupert Neve Designs, LLC
Model P2MB
GND
LIFT
CHASSIS
INPUTINPUT OUTPUTOUTPUT
CHANNEL ACHANNEL B
SIDE CHAIN
INSERTS
A
B
SEND
RETURN
3A FB FUSE
Rupert Neve Designs, LLC
Model P2MB
POWER
100-240 VAC
50/60Hz
75 Watts
CAUTION
Risk of Electric Shock
Disconnect from outlet
before removing cover
MADE IN USA
POWER
IEC 3-Pin Grounded AC Inlet 100-240 VAC 85 Watts Max
SIDE CHAIN INSERT SEND
TS jacks that allow the user to send the
PIIMB side-chain audio to the input of an
external processor (EQ, etc.)
SIDE CHAIN INSERT RETURN
TS jacks that allow the user to connect the
output of an external processor to the
input of the PIIMB side-chain
OUTPUT
Custom Rupert Neve Designs
transformer-coupled XLR line
outputs
INPUT
Custom Rupert Neve Designs
transformer-coupled XLR line
inputs
CHASSIS GND
Slide switch that isolates XLR
Output Pin 1 from chassis ground

4
MBP Front-Panel Features
Compressor
Threshold
This 31-detent potentiometer adjusts the level at which the compressor begins to attenuate the signal and is fully vari-
able within a signal level range of +20dBu to -30 dBu. If the compressor input signal level exceeds the set threshold
level, compression will occur.
Ratio
This 31-detent potentiometer adjusts the compressor slope between 1:1 to 40:1. Example: if the ratio control is set to
3:1, and the signal level exceeds the set threshold by 15dB, the compressor will attenuate the signal level by 10 dB from
input to output, allowing the output to increase in level by a total of 5 dB.
Blend
This 31-detent potentiometer adjusts the mix ratio of uncompressed (dry) signal with the compressed (wet) signal.
When Blend is fully counter-clockwise (CCW), only the uncompressed signal is audible. When Blend is fully clockwise
(CW), only the compressed signal is audible. Setting Blend anywhere between 0% and 100% achieves parallel compres-
sion.
Comp In
This illuminated push-button switch engages the compressor-limiter section on its respective channel. Engaging or
disengaging the“Comp In”button never aects SILK status and will not aect SFE status unless SFE to COMP is engaged.
Bypass All
This illuminated push-button switch toggles the PIIMB’s hard-wire bypass on both channels. When engaged, the PIIMB’s
Neutrik XLR input jacks are directly connected to its Neutrik XLR output jacks, eliminating all internal amplier circuitry
from the monitor path, thereby accomplishing a true bypass. This can be used for A-B comparison at any time. In the
event that the PIIMB experiences a loss of AC power, the PIIMB will automatically switch to hard-wire bypass mode.
FF/FB
This illuminated push-button switch toggles between two dierent compression modes: Feed Forward and Feed Back.
The distinction between these two types of compression is that the side-chain detector of a feed-forward compressor is
fed from the compressor input, before the gain control element, while the side-chain detector of a feed-back compressor
is fed from the compressor output, after the gain control element. Vintage compressors were more commonly feedback
designs, whereas a lot of modern designs tend to utilize feedforward topologies.
Ultimately, each topology has its own advantages and disadvantages, so we encourage the user to experiment with
both modes, then choose the most suitable mode for their particular application. In very general terms, feedback com-
pression tends to sound more natural, but can’t achieve some of the dynamic envelope control that is available with
feedforward compression.
Note: Due to the nature of the side-chain manipulation between these two compression modes, Feed Back mode reduc-
es the overall compression ratio range indicated on the PIIMB’s front panel silkscreen. The silkscreened ratios are only
available in Feed Forward (default) operation.

MBP Front-Panel Features
Gain
This 31-detent potentiometer provides two dierent functions. When used with the compressor, the Gain control acts
as standard Make-Up Gain, allowing the user to add gain to the compressed signal to match the bypassed signal level.
When used in the context of the PIIMB limiter, the Gain control allows the user to set the desired“ceiling”of their mix (in
dBu) with the “Limit” potentiometer. Once the Limit potentiometer is set to the desired maximum level, the user can
increase the Gain until the average mix level hits the desired loudness. The Gain control will drive the level of the mix
up to the set Limiter threshold, but will not exceed it.
When evaluating the quality of compression, it is vital to match the compressed signal level to the bypassed signal level.
A deviation of less than one decibel can trick the human brain into thinking that something sounds better or worse.
Utilize the “Comp In” or “Bypass All” push-button switches to match the uncompressed and compressed signal levels.
Once the levels are matched, a valid A-B comparison of the compression settings can be performed accurately.
Attack
This 31-detent potentiometer sets how quickly the compressor will attenuate to the input signal once it exceeds the set
threshold. When set to its fastest setting (20 ms), the compressor can attenuate the leading edge of a transient, like the
initial strike of a drum stick on a snare drum. By compressing the inital strike, the overall compression result will increase
the emphasis of the snare’s decay or resonance. When set to slower attack settings, the compressor will ignore most of
the initial transient and attenuate the drum’s decay instead, thereby increasing the emphasis of the drum stick hitting
the snare drum.
Release
This 31-detent potentiometer adjusts how fast the compressor will return to unity gain after the signal level crosses
below the threshold. Generally, slower release times will minimize compression artifacts, especially when combined
with slower attack times. Faster release times can be utilized to maximize apparent loudness. It is important to exercise
caution with fast release times, fast attack times, and high ratios, since combinations of these three can cause intermod-
ulation distortion, resulting in undesired compression artifacts.
S/C 125 Hz
This illuminated push-button switch engages a 125Hz 12dB/octave Sallen Key High Pass Filter into the compressor-lim-
iter side-chain. Removing low frequency information from the compressor-limiter side-chain detector can help to mini-
mize compressor pumping and over-compression of the rhythmic dynamic information that tends to reside in the lower
frequency range: kick drums, bass guitar, etc. This usually results in a smoother compression characteristic.
RMS / PEAK
This illuminated push-button switch modies the compressor side-chain detection. The default detection response
is RMS (Root Mean Square) averaged, which better mimics the way our ears perceive loudness. PEAK mode detection
responds more directly to the incoming compressor audio signal, which can be used to prevent clipping and maximize
overall loudness.
Link
The link control sums the side-chain information from both compressor-limiter channels, enabling Channel A’s controls
as MASTER. While linked, both channels are directly controlled by Channel A’s controls, including: Comp In, Attack,
Release, RMS/Peak, Threshold, Ratio, FF/FB, Gain, Blend, Silk Mode, Silk Texture, Limiter Threshold, Sidechain Insert, and
Sidechain HPF.
5

Limiter
Limit
This 31-detent potentiometer controls the threshold of the soft-clip limiter section. The limiter is disengaged until the
user rotates the Limit potentiometer past the 3rd detent (+24dBu) from the fully clock-wise (OFF) position. As the user
rotates the threshold control counter clock-wise, the limiter’s release time gradually increases. This creates a smoother
dynamic response as the amount of limiting increases. The limiter side-chain features a compound timing network that
allows the limiter to respond equally well to quick transient material as it does to less dynamic program material. The
PIIMB limiter can be utilized as a maximizer by setting the Limit potentiometer to the desired maximum level in dBu,
then increasing the amount of Gain until the desired program loudness is achieved.
Stereo Field Editor (SFE)
Within the stereo eld, there is information that is centered within the stereo eld that is phase coherent; such as kick
drum, snare, and bass guitar. There is also information that resides on the left and right sides of the stereo eld that is
not phase coherent, such as the natural reverb and ambience in a room, eects processing and instruments recorded in
stereo. Utilizing sum and dierence techniques, it is possible to isolate, then emphasize or de-emphasize the “Mid” and
“Side”information. The PIIMB’s Stereo Field Editor provides an enhanced version of a Mid-Side encoder for the user, with
an added EQ section for targeting specic frequency ranges of the Mid-Side processing.
Depth In
This illuminated push-button switch engages the Stereo Field Editor “Depth” pot and allows for A-B comparison.
Depth
This 31-detent potentiometer adjusts the overall level of the center (mid) information within the SFE’s M-S encoding.
The MIN (fully CCW) position will de-emphasize the center information within the stereo image, whereas the MAX (fully
CW) position will emphasize the center information. If the Depth control is at the 12 o’clock “0” position, no Depth pro-
cessing will be audible.
Width In
This illuminated push-button switch engages the Stereo Field Editor “Width” pot and allows for A-B comparison.
Width
This 31-detent potentiometer adjusts the overall level of the side information within the SFE’s M-S encoding. The MIN
(fully CCW) position will de-emphasize the side information within the stereo image, wheras the MAX (fully CW) posi-
tion will emphasize the side information. If the Width control is at the 12 o’clock “0” position, no Width processing will
be audible.
Depth EQ
This illuminated push-button switch engages the 4-position rotary switch that allows the user to select between four
dierent EQ settings for Depth processing: Low Frequency (LF), Low Mid (LM), High Mid (HM), and High Frequency (HF).
Width EQ
This illuminated push-button switch engages the 4-position rotary switch that allows the user to select between four
dierent EQ settings for Width processing: Low Frequency (LF), Low Mid (LM), High Mid (HM), and High Frequency (HF).
SFE to Comp
This illuminated push-button switch routes the Depth and Width information to Channel A and Channel B compres-
sor paths, respectively, allowing the user to manipulate the dynamic content of the Mid and Side information. When
engaged, the width and depth controls allow the user to blend the amount of compressed Mid and Side information
that is mixed back into the audio path. While SFE to Comp is engaged, the stereo compressor is only available for SFE
dynamic processing and is not operational within the main audio path. 6
MBP Front-Panel Features

7
Silk
This illuminated push-button switch toggles through the available SILK transformer harmonic saturation modes: OFF,
RED, and BLUE. Red Silk has a high frequency emphasis associated with the transformer harmonics, while Blue Silk has
a low frequency emphasis associated with the transformer harmonics. We encourage the user to experiment with both
modes to nd the most suitable tonal coloration for their particular application.
Texture
This 31-detent potentiometer allows the user to adjust the amount of Silk transformer saturation added to the signal
path when Silk Red or Blue modes are engaged.
Gain Reduction Meter
This 16 segment LED bar-graph meter indicates compressor-limiter gain reduction, indicated in dB. After 4 dB of atten-
uation, the LEDs turn to amber and after 8 dB, the LEDs turn red.
Output Meter
This 16-segment LED bar-graph meter indicates output level, indicated in dBu. The top-most red LED is calibrated to
illuminate at +25dBu, corresponding to the maximum output level of the PIIMB.
Power
The PIIMB has an IEC Standard 3-Pin grounded fused AC inlet with 100-240VAC 50/60Hz input range, 85 Watts max pow-
er AC consumption. The fuse is located directly above the rear-panel AC Inlet (see fuse type specications on pg. 8). The
corresponding power switch is located on the PIIMB front panel.
Side Chain Insert Send
This TS jack is provided on the PIIMB rear panel to allow the user to send the PIIMB side-chain audio to an external pro-
cessor like an EQ. The PIIMB Side-chain Insert Send should be connected to the input of the chosen external processor.
Side Chain Insert Return
This TS jack is provided on the PIIMB rear panel to allow the user to return the processed side-chain audio to the PIIMB‘s
sidechain input. The PIIMB Side-chain Insert Return should be connected from the output of the chosen external pro-
cessor.
Inputs
A stereo pair of female Neutrik XLR’s are provided on the rear panel for connection to the PIIMB’s custom Rupert Neve
Designs transformer-coupled discrete Class-A inputs.
Outputs
A stereo pair of male Neutrik XLR”s are provided on the rear panel for connection to the PIIMB’s custom Rupert Neve
Designs transformer-coupled discrete Class-A outputs.
GND LIFT
This rear-panel slide switch allows the user to isolate XLR Output Pin 1 from chassis ground. This is useful for trouble-
shooting ground loops, if they arise in a studio conguration.
MBP Front-Panel Features (continued)
MBP Rear-Panel Features

8
Specications
Frequency Response (Compressor and SFE Bypassed, Unloaded)
5 Hz to 100 kHz +/- 0.5 dB typical
120 kHz -3 dB typical
Maximum Output Level (Compressor and SFE Bypassed, Unloaded)
20 Hz to 40 kHz +25 dBu typical
Total Harmonic Distortion and Noise
1 kHz, +20 dBu Less than 0.003% typical
20Hz, +20 dBu Less than 0.10% typical
20 kHz, +20 dBu output Less than 0.010% typical
Compressor
Threshold -30 dBu to +20 dBu
Ratio 1.1:1 to 40:1
Blend 0% to 100% Compressor
Gain 0 dB to +20 dB
Attack 20 mS to 80 mS
Release 100 mS to 3.0 S
AC Power Consumption 85 Watts Max
Fuse 5 x 20mm Bussman type GDA 2.5A, Fast Acting, Ceramic
Product Dimensions (H x W x D) 3.5” (8.9 cm), 19” (48.3 cm), 12”(30.5 cm)
Shipping Dimensions (H x W x D) 5” (12.7 cm), 23” (58.5 cm), 12”(31 cm)
Shipping Weight 20 lbs (9.1 kg)

9

10

PRODUCT WARRANTY
Rupert Neve Designs warrants this product to be free from defects in materials and workmanship for a period of three
(3) years from date of purchase, and agrees to remedy any defect identied within such three year period by, at our
option, repairing or replacing the product.
LIMITATIONS AND EXCLUSIONS
This warranty, and any other express or implied warranty, does not apply to any product which has been improperly
installed, subjected to usage for which the product was not designed, misused or abused, damaged during shipping,
damaged by any dry cell battery, or which has been altered or modied in any way. This warranty is extended to the
original end user purchaser only. A purchase receipt or other satisfactory proof of date of original purchase is required
before any warranty service will be performed.THIS EXPRESS, LIMITEDWARRANTY IS IN LIEU OF ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, TO THE EXTEND ALLOWED UNDER APPLICABLE STATE LAW. IN NO EVENT SHALL RUPERT NEVE
DESIGNS BE LIABLE FOR ANY SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THIS
PRODUCT. Some states do not allow the exclusion or limitation of consequential damages or limitations on how long
an implied warranty lasts, so this exclusion may not apply to you.
WARRANTY SERVICE
If you suspect a defect in this product, please call us at 512-847-3013 or contact our support sta (service@rupertneve.
com) for troubleshooting. If it is determined that the device is malfunctioning, we will issue a Return Material
Authorization and provide instructions for shipping the device to our service department.
Rupert Neve Designs
PO Box 1969
Wimberley TX 78676
www.rupertneve.com
tel: [phone]
fax: [phone]-00008 Rev L
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