Unbalanced input connections typically should be kept as short as possible to prevent the undesirable effects of microphonics, hum and noise pickup. The Model 898B allows the conversion to and from balanced lines that can be run up to 500 feet without audible loss of audio quality.

Signal to noise and common mode rejection performance are perfectly preserved by using the 898B. The 898B incorporates precision trimmed components that are fully specified for high performance analog audio frequency applications. It has outstanding AC characteristics, including ultra low harmonic distortion (0.0006% at 1KHz), and the ability to drive capacitive lines and remain stable, high slew rate (15V/uS) and DC to 200Khz bandwidth.

Features:
The Sonic Imagery Labs Model 898B is designed and manufactured for use in applications in the areas of scientific research, data aquisition, broadcast audio, recording studios and playback/transport audio systems.

• 8 Channels of -10dBV to +4dBm Conversion
• 8 Channels of +4dBm to -10dBV Conversion
• Precision Analog Line Receivers
• Precision Balanced Line Drivers
• Ultra Low Total Harmonic Distortion and Noise
• DC to 200Khz Bandwidth (direct coupled)
• High Current Output Drive in both directions
• +23dBu Maximum Levels
• Ability to drive 300 ohm Minimum Loads
• RCA & XLR Interface Connections
• Channel to Channel Crosstalk > -110dB
• Rugged Steel Enclosure
• Hand Assembled and Tested With Care
• Made in the USA



The Sonic Imagery Labs Model 898B’s rugged steel one rack space package and performance provides the answer to the most demanding applications requiring precision level conversion and input - output line balancing and unbalancing.



Specifications:
-10 dBV to +4 dBu (RCA Phono Input to XLR3-1 Output)
Unbalanced to Balanced Direction

• Nominal input reference level -10 dbV(0.316Vrms)
• Nom. input ref. level channel to channel accuracy +/-1% (0.08dB)
• Bandwidth DC-165Khz +/- 0.2dB 200KHz -3dB
• THD+Noise@1Khz, Rload 600ohm, 22Hz-20KHz BW Vo=10Vrms 0.0006%
• Noise Floor, 22Hz-20KHz BW better than -101dBu
• Headroom, THD+Noise<1%, Rload 600ohm, 22Hz-20KHz BW
+22.3dBu (28.5Vpp, 10.1Vrms)
• Output DC Offset, 600ohm Rload +/- 4mV typical
• Input Impedance Zin 10Kohm
OPTION 002 user application defined
• Output Impedance Zout 50ohm

+4 dBu to -10 dBV (XLR3 Input to RCA Type Output)
Balanced to Unbalanced Direction

• Nominal input reference level +4 dBu (1.228Vrms)
• Nom. input ref. level channel to channel accuracy +/-1% (0.08dB)
• Bandwidth DC-165Khz +/- 0.2dB 200KHz -3dB
• Common Mode Rejection, Vcm+/-46.5V, Rs 50ohm better than 90dB at 60Hz
• THD+Noise@1Khz, Rload 600ohm Vo=2Vrms 0.0006%
• Noise Floor, 22Hz-20KHz BW -107dBu
• Headroom, THD+Noise <1%, RTO +22.3dBu (28.5Vpp, 10.1Vrms)
• Output DC Offset, 10Kohm Rload +/-1mV typical
• Input Impedance
24K differential
18K common mode
OPTION 001 user application defined
• Output Impedance 100ohm

Miscellaneous:

• Unit Size
1.75” Height x 19” Wide x 4.8” Deep
(44.45mm Height x 483mm Wide x 122mm Deep)
• Unit Weight
4 pounds 9 ounces (2.07 kilograms)
• User selectable 100Vac-240Vac 50-60Hz



Contact us directly for OEM and quantity pricing.
Contact us directly for custom/scientific applications and options pricing.

Model 898B Datasheet and Specifications PDF
Model 898B Operation Manual and Specifications PDF
Model 898B Purchase Online


All specifications subject to change without notice. The information provided herein is believed to be reliable; however; Sonic Imagery Labs assumes no responsibility for inaccuracies or omissions. Sonic Imagery Labs does not warrant or authorize any Sonic Imagery Labs products for use in life support devices and or systems.