ALM Busy PPEXP2 ()

Name: ALM Busy PPEXP2
Brand: ALM Busy

A tiny 2HP powerhouse that turns Pamela’s PRO Workout into a full-blown sync command center—DIN, MIDI, and fixed clock outputs packed into one no-brainer expander.

Overview

If your Pamela’s PRO Workout feels like a drum machine with its hands tied behind its back when it comes to external gear, the ALM Busy PPExp2 is the key to unlocking it. This isn’t a standalone module—you won’t plug it in and expect magic. It’s an expander, and a very specific one: designed exclusively to bolt onto the original Pamela’s PRO Workout and give it the kind of sync flexibility that modular heads and hardware sequencer junkies actually need. No fluff, no extra features just for the sake of it—this is surgical gear, built for a single purpose and built well.

Manufactured by ALM Busy and sold through Clockface Modular, the PPExp2 slots into the ecosystem of Eurorack powerhouses that value precision timing and rock-solid synchronization. It’s not flashy, and it doesn’t try to be. But if you’re trying to lock your modular rig to a vintage Roland drum machine, a modern groovebox, or even another Pamela (yes, really), this little 2HP add-on becomes suddenly essential. It’s the kind of module you don’t know you need until you realize how much time you’re wasting juggling clocks and start signals across mismatched gear.

And let’s be honest—Pamela’s PRO Workout is already a legend. But out of the box, its external sync options are limited. The PPExp2 fixes that with three critical outputs: a fixed clock, a buffered DIN Sync (with 24PPQ clock and Run signal), and a TRS MIDI clock output. That’s the trifecta for cross-platform groove alignment. Whether you’re syncing to a TB-303, an SH-101, or a modern MIDI-equipped sequencer, this expander hands you the cables—figuratively—to make it happen cleanly and reliably.

Specifications

Manufacturer	ALM Busy
Format	Eurorack
Width	2HP
Depth	32mm
Current	20mA @ +12V
Original price	$99 MSRP

Key Features

Fixed Clock Output

The PPExp2 adds a dedicated fixed clock output to the Pamela’s PRO Workout. This isn’t just a divided version of whatever tempo you’re running—it’s a stable, consistent clock signal that’s always available, independent of the main clock’s fluctuations or divisions. For users chaining multiple timing sources or feeding external sequencers that need a clean, unwavering pulse, this output is a quiet game-changer. It eliminates the need for a separate clock distributor or buffer just to tap into a reliable pulse.

DIN Sync with Buffered Outputs

One of the biggest limitations of working with older gear—especially Roland’s classic 303s, 606s, and 707s—is the fragile nature of DIN Sync signals. They’re prone to dropouts, timing jitter, and signal degradation over even short cable runs. The PPExp2 addresses this head-on by providing buffered Clock & Run outputs for DIN Sync (24PPQ). Buffering means the signal stays strong, clean, and consistent, even when driving multiple devices or longer cables. And as users have noted, this isn’t just useful for vintage boxes—it’s also a slick way to sync a second Pamela’s PRO Workout by patching the DIN Sync output directly into another unit. No MIDI, no CV tricks, just a solid digital handshake.

TRS MIDI Clock Output

MIDI clock over TRS (tip-ring-sleeve) 3.5mm jack is a modern convenience that saves space and streamlines patching in Eurorack setups. The PPExp2 includes a dedicated 3.5mm TRS MIDI clock output, which can be toggled between Type A and Type B via a switch on the back of the module. This small but critical detail means compatibility isn’t left to chance—owners can match their receiving device’s expectations without adapters or guesswork. Whether you’re clocking a Elektron box, a Korg Volca, or a modern desktop synth that accepts TRS MIDI, this output gets you there without breaking a sweat.

Exclusive Compatibility, Purpose-Built Design

The PPExp2 isn’t a universal sync expander. It’s built for one thing: enhancing the Pamela’s PRO Workout. It doesn’t offer inputs, it doesn’t process signals, and it doesn’t stand alone. This is a module with zero bloat. Every millimeter of its 2HP width is justified by a real-world need. There’s no mystery about where it fits—it slots directly onto the host module, and that’s that. Some might see the exclusivity as a limitation, but in practice, it’s a strength. It means the design is optimized, the connections are direct, and the integration is seamless. You’re not buying flexibility—you’re buying precision.

Collectibility & Value

As of its current retail availability, the ALM Busy PPExp2 is priced at ¥20,900 (tax excluded: ¥19,000) through Clockface Modular in Japan, while Big City Music lists it at $115.00 USD. These represent current retail prices from different regional distributors, with no indication of scarcity or secondary market premiums. The original MSRP was $99, meaning the module has seen a modest price increase, likely due to regional distribution and import factors rather than collector demand.

There is no data on common failures, maintenance requirements, or long-term reliability issues. Given its passive role—essentially routing and buffering existing signals—it’s unlikely to suffer from complex failure modes. However, as with any Eurorack module relying on physical connections to a host, wear on the ribbon cable or backplane contact could be a concern over time, though not specifically documented. At this price point and with its niche function, the PPExp2 is less of a “collector’s item” and more of a practical purchase—something you buy because you need it, not because you expect it to appreciate.