RDL STPH1 Specifications

STICK-ON® SERIES
Model ST-PH1 Phono Preamplifier
ANYWHERE YOU NEED...
Stereo or Mono Phono Preamplifier
Preamplifier with Balanced or Unbalanced
Outputs
Preamplifier with Hi or Low-Impedance
Outputs
Accurate, Low-Noise Preamplification
Ground-Referenced or Floating Power
RDL SupplyFlex™ Power Input Configuration
You Need The ST-PH1!
The ST-PH1 is part of a group of products in the STICK-ON series from Radio Design Labs. The durable bottom adhesives provided permit permanent or detachable mounting nearly anywhere or it may be used with RDL’s STR-19A or STR-19B racking adapter for rack mounting! The ST-PH1 gives you the advantages of a high quality, low-noise phono preamplifier with a big plus, you can put it where you need it!
The ST-PH1 is a stereophonic phono preamplifier. Each of the channel circuits is identical. The ST-PH1 has standard 47 k impedance unbalanced phono cartridge inputs. Each output will drive a high or low-impedance balanced or unbalanced line. Equalization follows the RIAA curve.
The power supply input may be fed from a floating (not ground-referenced) 24 Vdc power source, from a bipolar power supply (+/-12 Vdc or +/-15 Vdc), or from a ground-referenced 24 Vdc power supply. A switch on the module is used to select the power configuration.
The ST-PH1 features superior circuitry for low-noise, low-distortion, and exceptional audio clarity. Some features are:
Input matched to standard cartridges used in the industry.
Impeccable audio quality.
Ultra-low distortion and low noise.
Output levels adjustable (Independent adjustment for left and right channels).
Ample headroom at operating level.
Outputs short circuit protected.
Operation from floating, bipolar, or ground-referenced dc power supply.
Positive connections via barrier block, no audio connectors to wire.
Optimum system performance is obtained when phonographs are preamplified as close to the turntable as possible, and then the line-level signals are fed to the next piece of equipment in the chain. Audio performance and mounting convenience make the ST-PH1 ideal for a wide range of turntable installations!
RDL P.O. Box 1286 Carpinteria, CA., USA 93014 • (805) 684-5415 • FAX (805) 684-9316 http://www.rdlnet.com
STICK-ON® SERIES
Model ST-PH1 Stereo Phono Preamplifier
AUDIO
WIRING
TURNTABLE WITH
STANDARD MOVING
MAGNET CARTRIDGE
RDL ACB-2
(OPTIONAL)
Installation/Operation
EN55103-1 E1-E5; EN55103-2 E1-E4
Typical Performance reflects product at publication time exclusive of EMC data, if any, supplied with product. Specifications are subject to change without notice.
PROFESSIONAL PHONO PREAMP
GAIN L
INPUTS
L
+
POWER
R
U
OUTPUTS
L
SIGNALS FEEDING
UNBALANCED
LINE-LEVEL
EQUIPMENT
R
GAIN R
FLGR
+
PROFESSIONAL PHONO PREAMP
GAIN L
INPUTS
L
+
RDL PS-24
TYPE
SUPPLY
ANY GROUND TERMINAL CAN BE USED FOR A BIPOLAR
POWER SUPPLY. SET POWER SUPPLY SWITCH TO
FLOATING IF USING A BIPOLAR POWER SUPPLY
POWER
R
U
24 VDC
POWER
SOURCE
OUTPUTS
L
GROUNDED FLOATING
GROUND-REFERENCED
OR FLOATING POWER
SUPPLY OPERATION
(LOCATED BEHIND POT)
GR FL
GAIN R
R
FLGR
SWITCH SELECT
GAIN L
+
+
ADJUST LEVELS
PROFESSIONAL PHONO PREAMP
INPUTS
L
POWER
R
U
OUTPUTS
SIGNALS FEEDING
R
L
BALANCED
LINE-LEVEL
EQUIPMENT
FLGR
GAIN R
TYPICAL PERFORMANCE
Inputs: 47 k unbalanced Gain: 40 to 60 dB @ 1 kHz (adjustable) Output: 300 to drive low or high-impedance balanced or unbalanced lines Output Signal: Balanced: +4 dBu nominal (adjustable) Unbalanced: 6 dB below balanced line-level THD: < 0.03% Hi-Z load; < 0.015% 600 load. (10 Hz to 30 kHz) Frequency Response: RIAA curve Noise: < -75 dB below +4 dBu Headroom: 18 dB above +4 dBu Power Requirement: 24 to 33 Vdc @ 60 mA, Ground-referenced or Floating
Radio Design Labs Technical Support Centers
U.S.A. (800) 933-1780, (928) 778-3554; Fax: (928) 778-3506
891-0019J
Europe [NH Amsterdam] (++31) 20-6238 983; Fax: (++31) 20-6225-287
+