Acme Audio MTP-66 Motown Tube Preamplifier and DI

Step back to 1966 Detroit with the Acme Audio MTP-66 Motown Tube Preamp and DI, a faithful recreation of the legendary 5-channel Motown input box that defined the sound of iconic artists like James Jamerson, Dennis Coffey, and Robert White. Designed originally by a Motown engineer for seamless recording of multiple instruments with minimal bleed, this modern single-channel lunchbox preamp revives that classic tone with an all-tube signal path, hand-selected tubes, and an authentic Cinamag output transformer.

In addition to its vintage instrument-to-line-level preamp, the MTP-66 features an integrated microphone amp inspired by original Motown engineering, complete with a fixed-gain pentode and Acme Audio/Triad input transformer. Unlike the original, this model offers adjustable input and output controls, allowing users to fine-tune their sound, drive, and compression.

Specifications:

• Chassis: Desktop, rugged custom steel enclosure
• Input Pad: 15 dB microphone input pad
• Gain: 36 dB
• Voltage: 115/230V, 50/60 Hz
• VU Meter: Custom, analog-style for easy monitoring

Features:

1. All-tube signal path for warm, smooth, and detailed tone
2. Adjustable input/output controls for precise sound shaping
3. Integrated mic amp with fixed-gain pentode based on original Motown designs
4. Custom Cinamag output transformer for true vintage character
5. Enhanced durability with a rugged steel case, ideal for studio and live environments