API Audio ASM164
Professional music gear - detailed information and where to buy
API Audio
ASM164
Product Info
* Prices may vary. Check retailer for current pricing and availability.
The ASM164 is a serious tool for engineers and studios chasing that classic API sound. It's a dedicated summing mixer—not a hybrid—so it excels at gluing your tracks together with that signature API character and providing a rock-solid foundation for a professional mix. Perfect for those wanting that distinct analog glue without complex routing.
Product Description
- API Audio ASM164
- Analogue Summing Mixer
- 16 channels
- API 2510 Input operational amplifier
- API 2520 OpAmps
- Insert send/return on each channel
- 2 stereo programme buses: Mix-A and Mix-B
- Each channel can be assigned to Mix-A and Mix-B
- Continuously variable panning with centre detent
- 31-step
- rasterised volume control
- 4-segment LED level meter
- Analogue VU meter
- Format: 19" / 2 U
- *Connections: *
- 2 line inputs: Sub-D25 (channel 1-8 and channel 9-16)
- 2 Insert Send: Sub-D25
- 2 Insert Return: Sub-D25
- 2 line inputs: XLR
- 2 line outputs Mix-A: XLR with insert Send / Return: 6.3 mm jack
- 2 line outputs Mix-B: XLR with insert Send / Return: 6.3 mm jack
PROS
- • API 2510 op-amps deliver signature warmth and punch.
- • Dual Mix-A/B buses offer unparalleled flexibility in routing.
- • Robust 19” rackmount build feels incredibly solid and reliable.
- • Rasterized volume control provides precise, repeatable gain staging.
CONS
- • The Sub-D25 connections feel dated and less convenient than XLR.
- • Limited routing options compared to more modern summing solutions.
- • Premium-priced, a significant investment for smaller studios.
Product Video
Key Features
Channels
16
Summing Type
Analogue
Connections
Sub-D25, XLR, 6.3mm Jack
Headroom
+20 dB
Weight
24.5 lbs
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Frequently Asked Questions
The 550A is a channel strip; the ASM164 is a dedicated summing mixer. It's more about subtle glue and cohesion than aggressive EQ shaping, offering a cleaner, more transparent API sound.
It's designed for summing individual tracks, but stems work well too. However, you'll lose some of the subtle interaction that happens when summing individual elements.
They are fully flexible and accept any insert processor with a standard TRS connection. The insert points are a standard, industry-accepted format, offering broad compatibility.
