Heritage Audio DTT-73 Dual Tabletop Microphone Preamplifier

The Heritage Audio DTT-73 Dual Tabletop Microphone Preamplifier features a portable tabletop design with a handle. It includes two 80 dB Class A microphone preamps. The unit provides 2 x 1/4" DI input jacks, 2 x 1/4" DI thru jacks, 2 x balanced 3-pin female gold-plated XLR microphone inputs, 2 x balanced 3-pin female gold-plated XLR line inputs, and 2 x balanced 3-pin male gold-plated XLR outputs. The input impedance for microphone HI is 1200 Ω minimum, LO is 300 Ω minimum, and line is 10 kΩ bridging, Carnhill transformer balanced and floating DI is greater than 2 MΩ, unbalanced. The output impedance is less than 75 Ω, transformer balanced and floating to drive a load of 600 Ω. The maximum output is greater than +26 dBm into 600 Ω. The THD is less than 0.025% at 1,000 Hz and less than 0.05% at 100 Hz. The frequency response ranges from 20 Hz (+0.3 dB) to 20,000 Hz (-0.2 dB). The maximum gain is slightly greater than 80 dB. The noise level is less than -100 dBm. The dimensions are 20 x 9.5 x 30" (13 x 24 x 75 cm) and the weight is 6.6 lb (3.0 kg). The package weight is 11.15 lb.

• Channels: 2
• Connectors: 2 x 1/4" DI input jacks 2 x 1/4" DI thru jacks 2 x balanced 3-pin female gold-plated XLR microphone inputs 2 x balanced 3-pin female gold-plated XLR line inputs 2 x balanced 3-pin male gold-plated XLR outputs
• Input Impedance: Microphone HI: 1200 Ω minimum LO: 300 Ω minimum Line: 10 kΩ bridging, Carnhill transformer balanced and floating DI: Greater than 2 MΩ, unbalanced
• Output Impedance: Less than 75 Ω, Transformer balanced and floating to drive a load of 600 Ω
• Maximum Output: Greater than +26 dBm into 600 Ω