LaChapell Model 992 EG
A Dual Mono, Fully Balanced Vacuum Tube Preamplifier for Commercial Recording and Broadcast. The Model 992 EG (Extended Gain) differs from the ‘TLS’ in input topology only. By utilizing the Jensen JT-115k input transformer and two ECC803/12AX7 vacuum tubes per channel, this configuration is able to provides >74dB of gain (usually about 76dB ...) with a typical non-weighted EIN of -125dB referencing 150ohm. All other design elements are the same.

LaChapell Model 992 EG Premium Tubes
A Dual Mono, Fully Balanced Vacuum Tube Preamplifier for Commercial Recording and Broadcast. The Model 992 EG (Extended Gain) differs from the ‘TLS’ in input topology only. By utilizing the Jensen JT-115k input transformer and two ECC803/12AX7 vacuum tubes per channel, this configuration is able to provides >74dB of gain (usually about 76dB ...) with a typical non-weighted EIN of -125dB referencing 150ohm. All other design elements are the same.

Special Order, call for information on available tubes

LaChapell Model 583s with Jensen
Double width, 500 Series Compatible, Mono Tube Mic Preamp with Jensen Transformer! (Requires a powered rack to operate) Also available with a variety of premium tubes including Telefunken, GE, Mullard etc, email for more information.

LaChapell Model 583e
The Model 583E features the same amplifier stage found on the 583S including the Jensen JT-115k input transformer coupled with an ultra-clean transformer-less three-band EQ section with fully sweeping frequency controls and cut/boost settings of +/- 8dB. The EQ can run as an integrated EQ serving the preamplifier or separate as its own autonomous module where both units run independently.

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