API ASM164 – 16-Channel Rackmount Analog Summing Mixer

OVERVIEW

The API ASM164 is a 16-channel analog mixer that provides API summing performance in a convenient 19-inch rack format. With a design based on the summing section of THE BOX®Console, the ASM164 is designed for professional project studios, home studios, and production facilities of all kinds. The ASM164 is designed to provide the legendary API sound in an efficient, cost effective package.

“The new ASM164 offers the summing power you need with all the API tone you’d expect. Additionally, convenient features like the 0dB and inserts on every channel make this a great addition to your workflow.” – Larry Droppa, API President

KEY HIGHLIGHTS

16 Analog Summing Channels:
Effortlessly mix and sum up to 16 channels with the classic API sound.

Dual Stereo Program Buses:
Assign channels to Mix-A and/or Mix-B for flexible routing options.

Signature API Sound:
Equipped with proprietary 2510 and 2520 OpAmps and output transformers for unparalleled warmth and clarity.

Convenient Workflow Features:
Includes 0dB bypass, inserts on each channel, and balanced line-level DB-25 connections.

Precise Level Control & Monitoring:
Features 31-step detented level controls, 4-segment LED meters, and analog stereo VU meters for accurate signal management.

FEATURES

• 16 Analog Summing Channels
• Balanced, Line-Level, DB-25 Connectors
• Global 0dB Channel Level Control Bypass
• Proprietary API 2510 Input OpAmps
• Insert Send/Return On Each Channel
• 4-Segment LED Level Meters
• 2 Stereo Program Buses – Mix-A and Mix-B
• Each Channel Assignable to Mix-A and/or Mix-B
• Continuously Variable Panning With Center Detent
• 31-Step Detented Level Control
• Balanced Stereo External Input (Assignable to Mix-A and/or Mix-B)
• Signature API 2520 OpAmps and Proprietary Output Transformers
• Analog Stereo Output Level VU Meters
• Comprehensive Rear Panel Connections with Balanced In/Out
• External Power Supply

TECHNICAL SPECIFICATIONS

Input Connectors: Channels: 25-Pin D-Sub (standard pinout)

External Input: XLR Female

Output Connectors: Mix Outputs: XLR Male, Impedance

Inserts: ¼” Balanced

Input Impedance: 30K Ohms,Balanced

MIX Output Impedance: 75 Ohms, Transformer Coupled, Balanced

Max Input Level: +25dBu

Max Output Level: +25dBu

Frequency Response: +/-0.5dB from 20Hz to 40kHz

THD+N: < 0.02% @+4dBu, 1kHz

Signal to Noise Ratio: -112dBr

Power Requirement: 30 Watts, External PSU, 951-0365

Warranty: 5-Year Parts / 1-Year Factory Service

DOWNLOADS

• Manual (PDF)
• Recall Sheet (PDF)
• Block Diagram (PDF)