Audessence ALPS 2 Leveler

Audessence ALPS-2 Broadcast Leveller audio processor geschikt voor diverse uitzendingen. Een echt veelzijdige audio leveler / leveler. Ideaal voor de radio studio's, codec bescherming, satelliet-feeds.
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Audessence ALPS-2 Leveller.

Adding comprehensive front-panel control features, the ALPS-2 audio leveler is ideally suited to dynamic operating environments, such as outside broadcasts, where instant local adjustment of sound parameters may be required. A front-panel jog-wheel and LCD display provides intuitive simplicty with gain-reduction metering giving direct feedback to the user. Perceived loudness, dynamic range and peak levelsuitable for all situations where some combination of these three must be powerfully yet unobtrusively controlled.


Brings consistency to all programme streams without erasing musical dynamics
Ends listener annoyance from over-loud segments such as commercials and shouting DJs.
Improves audibility and clarity of programme Eliminates overload distortion and damage forever.
Eliminates the inconvenience of unauthorised tampering with front-panel controls.
Maintains programme path reliability - fail- safe mode.


Sound level control for Radio and Television
Normalise levels of news booths and unattended studios, ingest points, etc.
Overload protection for STLs, digital codecs, PA and monitors
FM broadcast: Networks, Relay from satellite, Community Radio & RSLs.
Professional-level audio streaming, archiving and podcasting.


  • Minimal feature setvery cost-effective yet fully professional.
  • Excellent quality - 96kHz and 88.2kHz native modes avoid unnecessary ASRCs.
  • Complete programme reliability - 'pass- through' relays for analogue and digital paths.
  • Factory presets deliver exactly the results you need for any application
  • Bright, Always-Visible LED bargraphs for audio confidence checks.
  • Low audio latency (2.2 - 4 milliseconds), fast boot-up (<1 second).
  • Stereo or Dual-Mono modes.

Frequency Response:

DIGITAL-DIGITAL: 20Hz-20kHz /-0.1dB 


DIGITAL-DIGITAL (rms 20Hz-20kHz): <-117dBFS 
ANALOGUE-ANALOGUE: (rms 20Hz-20kHz): <-83dB ref: Limit point 8dBu 


DIGITAL-DIGITAL (6dB limiting): <-100dB / 0.001% THD 
ANALOGUE-ANALOGUE (6dB limiting): <-80dB / 0.01% THD 

Stereo Separation (L/R crosstalk):

DIGITAL-DIGITAL (at 3kHz): <-117dB 
ANALOGUE-ANALOGUE (at 3kHz): <-82dB 


ANALOGUE: Balanced, 10k (bridging), ¼” Jack [TRS]. Standard operating level -6dBu to 14dBu ( 22dBu clip point) 
DIGITAL: S-PDIF (RCA/Phono); 32, 44.1, 48, 88.2, 96kHz sample rate. 16, 20, or 24 bits. 


ANALOGUE: Active true balanced, standard operating level -6dBu to 18dBu 
DIGITAL: AES-3 (XLR); full input rate / half rate. 

Processing blocks:

Gated AGC: Capture range /-20dB; maximum positive gain can be set. Advanced AGC enables faster, programme-dependent operation. Defeatable. 
Compressor: Nominal 2:1 slope and 4dB maximum boost of low levels. Defeatable. 
Wide-band Limiter: Zero overshoot 1.3ms look-ahead zero clipping. Defeatable. 
HF Limiter: Protects 50us or 75us emphasis curve for FM broadcast applications. Defeatable. 


Setup is via PC GUI only. Select a factory preset, modify it, set levels etc, save to Flash memory. USB on front panel, plus RS-232 on rear panel. ASCII Text based command format.
Every processing parameter, including all thresholds and time constants, can be accessed and modified under PC control (GUI included).


 100 – 240V AC Nominal (acceptable range 88V to 264V AC) / 5 Watts. 

Dimensions & weight:

 1-RU: 44 x 482 x 290mm deep / 1.75” x 19” x 11.25” deep. 


 1.8kg / 4lbs


 3 year return-to-base warranty 


 CE (EMC and LVD), RoHS
ALPS-2 Brochure