Jensen Transformers SP-2SX X 2-Channel Speaker to Line Level Converter

The Jensen Transformers ISO-MAX SP-2SX is a two channel speaker to line level converter that lets you convert the high power signal from an audio amplifier output to a +4 dB (nominal) balanced line level for further processing or signal distribution.

The design begins with a rugged flanged enclosure that comes standard with gold plated XLRs and a removable screw-down barrier strip for easy installation in NEMA enclosures and 19” racks. Plug and play easy to use, this passive interface does not require any power to work. Inside are two Jensen high performance transformers that isolate the output to eliminate hum and buzz caused by ground loops while they eliminate issues with ‘bridged’ and ‘class D‘ power amp outputs. A series of input pad DIP switches let you select the range to suit various power amps for at 25 W, 75 W, 250 W, or 750 W max in to 8 ?. All types of amplifiers may be used including 25 V and 70 V line driver types.

Once connected, the SP-2SX is able to withstand signal levels to +19 dBu at 20 Hz without introducing distortion, phase shift or artifact of any kind. This opens the door to expand existing systems without having to run additional line level signals throughout a facility.

Jensen Transformers ISO-MAX SP-2SX Features:

• Converts any speaker or amplifier output to line level
• Delivers exceptionally low distortion down to 20 Hz
• Ruler flat frequency response from 5 Hz to 20 kHz
• Plug and play easy to use, no power required

Jensen Transformers ISO-MAX SP-2SX Specifications:

• Input Impedance, Zi (1 kHz, 10V, varies with power selection): Min. 1.1 kOhms; Max. 2.3 kOhms
• Voltage Gain (1 kHz, input voltage = rated maximum): Min. 17.5dBu; Typ. +18dBu; Max. +18.5dBu
• Magnitude Response, ref. 1 kHz (20 Hz, 10V): Min. -0.15dB; Typ. -0.03dB; Max. ±0.0dB
• Magnitude Response, ref. 1 kHz (20 kHz, 10V): Min. -0.35dB; Typ. -0.20dB; Max. ±0.0dB
• Deviation from Linear Phase (DLP, 20 Hz to 20 kHz, 10V): Typ. +1.4/-0°; Max. ±2.0°
• Total Harmonic Distortion (THD, 1 kHz, 15dB below rated input voltage): < 0.001%
• Total Harmonic Distortion (THD, 20 Hz, 15dB below rated input voltage): Typ. 0.04%; Max. 0.10%
• Total Harmonic Distortion (THD, 20 Hz, maximum rated input voltage): Typ. 0.8%; Max. 1.5%
• Common-Mode Rejection Ratio (CMRR, 60 Hz): Typ. 115dB
• Common-Mode Rejection Ratio (CMRR, 3 kHz): Min. 80dB; Typ. 90dB
• Output Impedance, Zo (1 kHz): Typ. 5.3 kOhms
• 8 Ohm Amplifier Power Rating / Rated Maximum Input Voltage (S1 off, S2 off, S3 off): Max. 25W, 14V
• 8 Ohm Amplifier Power Rating / Rated Maximum Input Voltage (S1 on, S2 off, S3 off): Max. 75W, 25V
• 8 Ohm Amplifier Power Rating / Rated Maximum Input Voltage (S1 on, S2 on, S3 off): Max. 250W, 44V
• 8 Ohm Amplifier Power Rating / Rated Maximum Input Voltage (S1 on, S2 on, S3 on): Max. 750W, 77V
• 8 Ohm Amplifier Power Rating / Rated Maximum Input Voltage (Any switch settings, without damage): Max. 77V
• Temperature Range (Operation or Storage): 0°C to 70°C
• Breakdown Voltage (Speaker input to line output ground or chassis, 60 Hz,1 minute test duration): Min. 250V RMS