Akai DPS 24 Operator's Manual download pdf (Page 10)

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Levels jumping with no input? Mixer>Input Channel>

I'm simply looking at the input channel screen in the mixer. Whether I

select dynamics (comp or expander) or N.Gate, the input/output box shows

jumping levels between -120 and -100 or so. They move together equally.

This displays on all channels, and I've got no inputs connected to

anything. Is this a normal condition?

That's just the normal noise floor of the DPS. If you crank the trim pot beyond 3/4, you should see the

values go up. The spec dynamic range is 104dB, so this is right in line relative to 0dB.

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Track Return Trims?

Is there a "track return trim" on each of the DPS mixer channels to

optimize each track pre-fader? If so, how finely is it adjustable?

Every Mono channel (Input or Track Return) starts with a Phase Inverter and an Attenuation stage.

The Attenuation parameter ranges from 0dB to -120dB in 0.1dB steps. There is no pre-fader "boost".

If you want more pre-fader level on Track Returns, you can Normalise the audio on the tracks

themselves, one or two tracks at a time (the normalize feature supports Mono and Stereo Normalise).

For info, a Mono Channel path of the DPS24 Mixer is:

-> Phase Inv -> Att -> EQ -> DYN -> CH ON -> Fader -> Pan -> L/R + GROUP assign.

Each send can be selected individually (per channel) PRE or POST Fader, and Internal FX or

External AUX.

Solo can be selected PFL (between DYN and CH ON), AFL (between Fader and Pan) or SIP (stereo

Solo after Pan).

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Misc. Synchronization Questions

1) I’m having trouble synching my DPS as a midi slave to my sequencer, a

Kurzweil k260.

Make sure that the Kurzweil is sending out MTC, not MIDI Clock with SPP. Most keyboards with

onboard sequencer only support MIDI Clock. In this case, you would need to setup the DPS24 as

Master (MIDI CLOCK OUT, with the correct Tempo / Time Signature) and the K. as MIDI Clock Slave.

(MIDI OUT of the DPS24 into MIDI IN of the K.) If the K. also supports MMC (I don't think so either),

you could set it as MMC Master and the DPS24 as MMC Slave (with an additional cable from MIDI

OUT of the K. into MIDI IN of the DPS24). That would allow the K. to control the transport of the

DPS24.

Also, when synchronizing the DPS24 with a MIDI sequencer, it is always a good idea to add at least

one blank bar before the actual start of the sequence. Please note:

The DPS24 can be:

* MIDI CLOCK Master

* MTC Master or Slave

* MMC Master or Slave

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Akai DPS 24 Operator's Manual Page 10