True Systems pT2-500D Operation Manual
pT2-500D
PRECISION
DYNAMIC MICROPHONE
PREAMPLIFIER
with Direct Input and
Low-Frequency Adjust Control
500 series compatible module
OPERATION MANUAL
Version 1.0
pT2-500D Microphone Preamplifier OPERATION MANUAL
Version 1.0
2
©2011 TRUE SYSTEMS
CERTIFICATION
Declaration of Conformity
Sunrise Engineering and Design Inc. hereby declares the True Systems pT2-500D
single channel microphone preamplifier module to be in material conformity with the
following EC directives and related standards:
• 2006/95/EC Low Voltage Directive
• 2004/108/EC EMC Directive
• EN60065: 1998 Safety requirements for audio equipment
• EN55103-1: 1997 Electromagnetic compatibility of audio equipment: Emission
• EN55103-2: 1997 Electromagnetic compatibility of audio equipment: Immunity
Technical files are maintained at corporate headquarters of Sunrise Engineering and
Design Inc., 1630 S. Research Loop, Suite 150, Tucson, Arizona 85710, U.S.A
RoHS
Certificate of Compliance
This is to certify that the True Systems pT2-500D is RoHS compliant and meet the
requirements and specified limits of restricted substances according 2002/95/EC
directive.
WEEE
pT2-500D is marked with the WEEE symbol to comply with the European Union’s
Waste Electrical & Electronic Equipment (WEEE) Directive 2002/96/EC. The symbol
indicates that this product should not be treated as household waste. It must be
disposed and recycled separately as electronic waste. Please assist to keep our
environment clean.
Above declarations are void by modification of the device without approval, or unauthorized servicing.
Tucson, 09-01-2011
Tim Spencer, president
pT2-500D Microphone Preamplifier OPERATION MANUAL
Version 1.0
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©2011 TRUE SYSTEMS
Important symbols:
This symbol appearing on the product or in this manual indicates the
presence of dangerous voltage within the product enclosure that presents
the risk of electric shock injury. When this symbol appears next to an
operation discussed in this manual, only qualified technical personnel should
perform that operation.
This symbol indicates important operating or maintenance instructions that
should be read carefully. Failure to observe these instructions could result in
damage to this product or other equipment.
WARNINGS:
While no hazardous voltage is present within this product during normal
operation, please observe the following warnings regarding any AC-powered
equipment into which this product is installed:
• To reduce the risk of electric shock injury, do not remove the access
covers on AC-powered equipment. Refer servicing to qualified personnel.
• This unit is intended for indoor operation only
• Do not operate this unit in the presence of rain, liquids or condensing
moisture.
• Do not expose the unit to dripping or splashing liquids.
• Do not place liquid-filled objects on the unit.
• Do not defeat the earth ground connection in the AC power cable.
• Do not defeat intended AC power connection polarization.
• Do not use a damaged or excessively worn cord to connect the equipment
to AC power.
CAUTIONS:
• Severe damage to pT2-500D will occur if incorrect power supply
voltages are applied to the card edge connector. Please consult the
“CONNECTIONS” section in this manual for proper power supply
specifications/connections.
Disclaimer:
Product failure caused by improper voltage application cannot be
covered under warranty.
• Liquid entering the product enclosure is likely to cause performance
degradation or failure. Failures due to moisture entering the enclosure
cannot be covered under warranty. Should liquid spill on the unit,
immediately disconnect it from the AC power source and contact TRUE
Systems for servicing instructions
• This product is designed to operate in an ambient temperature range of
10°C to 50°C (50°F to 122°F).
pT2-500D Microphone Preamplifier OPERATION MANUAL
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©2011 TRUE SYSTEMS
CERTIFICATIONS…………………………………………………………...
CE
RoHS
WEEE
2
SAFETY and OPERATING PRECAUTIONS…………………………….
3
TABLE of CONTENTS……………………………………………………...
4
PRODUCT OVERVIEW……………………………………………………..
New Type 2 Circuit Design
Features
5
INSTALLATION……………………………………………………………...
Unpacking
Card Rack Installation
Card Edge Connections
Ventilation
6
OPERATION………………………………………………………………….
Connections
Output
Microphone Input
Instrument Input and Thru (DI)…………………………………………………..
A Word About Cables……………………………………………………………………
Cable Types
Instrument cables
Microphone and Line Level cables
Front Panel Layout……………………………………………………………………….
Controls
Gain, LO/HI
Low Frequency Adjust
Phantom Power
Instrument Input
Level Indicators
7
8
9
10
SPECIFICATIONS…………………………………………………………...
11
TROUBLESHOOTING………………………………………………………
12
13
WARRANTY & SERVICE INFORMATION……………………………..
Registration and Warranty
Service and Support……………………………………………………………………..
14
15
pT2-500D Microphone Preamplifier OPERATION MANUAL
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©2011 TRUE SYSTEMS
Thanks for using our product! We appreciate the confidence you place in TRUE
Systems by purchasing the
pT2-500D
microphone preamplifier/instrument DI. We
design our products to deliver stunning musical accuracy, uniquely useful features,
exceptional value, and reliability. Every aspect of this product design was determined by
careful listening tests and extensive user feedback. Please feel free to contact us with
questions or comments.
The
pT2-500D
utilizes our Type 2 design to achieve ultra-resolution musicality and
provide optimum performance with dynamic mics, ribbon mics, and self-powered tube
mics. We’ve eliminated the components required for phantom power in order to provide
higher input impedance and reduced distortion and noise. More preamp gain is typically
required by dynamic and ribbon microphones, so we’ve provided up to 76dB – in two
ranges selected for easy control.
Lo-F Adjust (low frequency adjustment control):
The Lo-F Adjust selector allows nuanced attenuation of low-end signal content. The five
frequency selections are reciprocal to proximity effect characteristics of various
commonly-used microphone types, and can be particularly effective in removing low
frequency “mud“ from vocals and bass instruments.
FEATURES
API™ 500 series module format
Totally Balanced Topology for:
• insensitivity to ground noise/loops
• Insensitivity to EMI, both external and from adjacent modules/power supplies
• reduced distortion
Rail-to-Rail design for:
• higher internal headroom
• higher maximum input level without pad (up to +21dBu)
• higher output level without transformer and excessive power supply current
0.1% precision resistors for:
• exceptional Common-Mode and Output Signal Balance performance
• excellent unit-to-unit sonic consistency
“Real DI” IN and THRU jacks for:
• Easy hookup to amps for simultaneous DI and amp’d tracking or live sound
• Easy hookup to other DI’s or effects for simultaneous tracking or live sound
Detented, continuous Gain Control and Dual Gain Ranges for:
• easy gain resetability
• easy gain setting over wide gain ranges
Steel Enclosure for:
• protection from EMI and RFI
• protection from ESD and handling contamination/damage
Lo-F Adjust control
4-Level Signal Meter
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