UAD-2 Instance Count Chart
About This Chart
- The following table indicates DSP usage and instance counts for UAD-2 Powered Plug-Ins.
- See bottom of page for more details about the chart.
| UAD-2 Powered Plug-In | DSP % | SOLO | DUO | QUAD | OCTO | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mono | Stereo | Mono | Stereo | Mono | Stereo | Mono | Stereo | Mono | Stereo | |
| 1176LN (Analog Classics) | 4.5% | 5.0% | 22 | 20 | 44 | 40 | 88 | 80 | 176 | 160 |
| 1176SE (Analog Classics) | 1.6% | 2.0% | 61 | 48 | 122 | 96 | 244 | 192 | 488 | 384 |
| 4K Buss Compressor | 2.8% | 3.4% | 35 | 29 | 70 | 58 | 140 | 116 | 280 | 232 |
| 4K Channel Strip * | 7.4% | 11.4% | 17 | 11 | 34 | 22 | 68 | 44 | 136 | 88 |
| Ampex ATR-102 Mastering Tape Recorder | 17.6% | 29.0% | 5 | 3 | 10 | 6 | 20 | 12 | 40 | 24 |
| API 550A EQ | 7.2% | 11.7% | 13 | 8 | 26 | 16 | 52 | 32 | 104 | 64 |
| API 560 EQ | 9.2% | 15.5% | 10 | 6 | 20 | 12 | 40 | 24 | 80 | 48 |
| bx_digital V2 EQ & De-Esser | 3.4% | 4.9% | N/A | 20 | N/A | 40 | N/A | 80 | N/A | 160 |
| bx_digital V2 Mono EQ & De-Esser | 3.4% | 3.8% | 29 | 20 | 58 | 40 | 116 | 80 | 232 | 160 |
| Cambridge EQ * | 2.2% | 3.3% | 46 | 30 | 92 | 60 | 184 | 120 | 386 | 240 |
| Cooper Time Cube | 4.5% | 4.9% | 18 | 18 | 36 | 36 | 72 | 72 | 144 | 144 |
| CS-1 Channel Strip * | 6.0% | 6.4% | 16 | 15 | 32 | 30 | 64 | 60 | 128 | 120 |
| dbx 160 Compressor | 2.0% | 2.7% | 49 | 36 | 98 | 72 | 196 | 144 | 384 | 288 |
| DM-1 & DM-1L Delay Modulator | 1.4% | 1.8% | 71 | 54 | 142 | 108 | 284 | 216 | 512 | 432 |
| DreamVerb | 11.8% | 12.2% | 8 | 8 | 16 | 16 | 32 | 32 | 64 | 64 |
| EL7 FATSO Jr/Sr * | 25.6% | 40.5% | 4 | 3 | 8 | 6 | 16 | 12 | 32 | 24 |
| EMT 140 Plate Reverb | 14.6% | 15.0% | 6 | 6 | 12 | 12 | 24 | 24 | 48 | 48 |
| EMT 250 Electronic Reverberator | 6.2% | 7.8% | 12 | 11 | 24 | 22 | 48 | 44 | 96 | 88 |
| EP-34 Tape Echo | 26.7% | 28.1% | 3 | 3 | 6 | 6 | 12 | 12 | 24 | 24 |
| EX-1 EQ/Compressor * | 1.9% | 2.3% | 53 | 43 | 106 | 86 | 212 | 172 | 424 | 344 |
| Fairchild 670 Compressor | 4.5% | 5.1% | 22 | 19 | 44 | 38 | 88 | 76 | 176 | 152 |
| Harrison 32C EQ | 5.4% | 9.2% | 18 | 10 | 36 | 20 | 72 | 40 | 144 | 80 |
| Harrison 32C SE EQ | 1.7% | 2.5% | 59 | 39 | 118 | 78 | 236 | 156 | 472 | 312 |
| Helios Type 69 EQ | 4.8% | 6.8% | 20 | 14 | 40 | 28 | 80 | 56 | 160 | 112 |
| LA-2A Limiter (Analog Classics) | 3.6% | 4.0% | 27 | 24 | 54 | 48 | 108 | 96 | 216 | 192 |
| LA-3A Leveler | 4.3% | 4.7% | 23 | 22 | 46 | 44 | 92 | 88 | 184 | 176 |
| Lexicon 224 Classic Digital Reverb | 15.3% | 17.0% | 6 | 5 | 12 | 10 | 24 | 20 | 48 | 40 |
| Little Labs IBP Phase Alignment Tool | 3.4% | 5.8% | 29 | 17 | 58 | 34 | 116 | 68 | 232 | 136 |
| Little Labs VOG Bass Resonance Tool | 1.0% | 1.4% | 90 | 64 | 180 | 128 | 360 | 256 | 512 | 512 |
| Manley Massive Passive EQ (STD & MST) | 37.1% | 60.2% | 2 | 1 | 4 | 2 | 8 | 4 | 16 | 8 |
| Moog Multi-Mode Filter | 16.1% | 16.6% | 6 | 6 | 12 | 12 | 24 | 24 | 48 | 48 |
| Moog Multi-Mode Filter SE | 3.0% | 3.5% | 28 | 28 | 56 | 56 | 112 | 112 | 224 | 224 |
| MXR Flanger/Doubler | 11.8% | 16.4% | 8 | 6 | 16 | 12 | 32 | 24 | 64 | 48 |
| Neve 1073 EQ | 4.8% | 7.9% | 20 | 12 | 40 | 24 | 80 | 48 | 160 | 96 |
| Neve 1073SE EQ | 1.6% | 2.5% | 61 | 39 | 122 | 78 | 244 | 156 | 488 | 312 |
| Neve 1081 EQ | 6.0% | 9.5% | 16 | 10 | 32 | 20 | 64 | 40 | 128 | 80 |
| Neve 1081SE EQ | 1.6% | 2.8% | 38 | 35 | 76 | 70 | 152 | 140 | 304 | 280 |
| Neve 31102 EQ | 5.3% | 8.5% | 18 | 11 | 36 | 22 | 72 | 44 | 144 | 88 |
| Neve 31102SE EQ | 1.7% | 2.6% | 59 | 38 | 118 | 76 | 236 | 152 | 472 | 304 |
| Neve 33609 Compressor | 15.0% | 21.7% | 6 | 4 | 12 | 8 | 24 | 16 | 48 | 32 |
| Neve 33609SE Compressor | 3.3% | 4.3% | 30 | 23 | 60 | 46 | 120 | 92 | 240 | 184 |
| Ocean Way Studios | 38.0% | 38.4% | 2 | 2 | 4 | 4 | 8 | 8 | 16 | 16 |
| Neve 88RS Channel Strip * | 3.2% | 4.5% | 35 | 24 | 70 | 48 | 140 | 96 | 240 | 192 |
| Precision Buss Compressor | 2.8% | 3.4% | 35 | 29 | 70 | 58 | 140 | 116 | 280 | 232 |
| Precision De-Esser * | 2.6% | 4.3% | 38 | 23 | 76 | 46 | 152 | 92 | 304 | 184 |
| Precision Enhancer Hz | 2.6% | 3.2% | 38 | 31 | 76 | 62 | 152 | 124 | 304 | 148 |
| Precision Enhancer kHz | 1.2% | 1.9% | 86 | 54 | 172 | 108 | 344 | 216 | 512 | 432 |
| Precision Equalizer * | 4.0% | 6.8% | 25 | 14 | 50 | 28 | 100 | 56 | 200 | 112 |
| Precision K-Stereo | 2.7% | 3.2% | 31 | 36 | 62 | 72 | 124 | 144 | 248 | 288 |
| Precision Limiter | 2.8% | 3.3% | 35 | 30 | 70 | 60 | 140 | 120 | 180 | 140 |
| Precision Maximizer * | 7.6% | 14.1% | 13 | 7 | 26 | 14 | 52 | 28 | 104 | 56 |
| Precision Multiband * | 11.9% | 18.8% | 8 | 5 | 16 | 10 | 32 | 20 | 64 | 40 |
| Pultec EQP-1A EQ | 4.1% | 6.2% | 24 | 16 | 48 | 32 | 96 | 64 | 192 | 128 |
| Pultec Pro EQ | 4.4% | 7.6% | 22 | 13 | 44 | 26 | 88 | 52 | 196 | 104 |
| RealVerb Pro | 10.0% | 10.4% | 10 | 9 | 20 | 18 | 40 | 36 | 80 | 72 |
| Roland Boss CE-1 Chorus Ensemble | 2.0% | 2.5% | 48 | 39 | 96 | 78 | 192 | 156 | 384 | 312 |
| Roland Dimension D | 2.9% | 3.3% | 34 | 29 | 68 | 58 | 136 | 116 | 272 | 232 |
| Roland RE-201 Tape Echo | 13.3% | 13.8% | 7 | 7 | 14 | 14 | 28 | 28 | 56 | 56 |
| RS-1 Reflection Engine | 4.0% | 4.4% | 25 | 22 | 50 | 44 | 100 | 88 | 200 | 176 |
| Shadow Hills Mastering Compressor | 5.7% | 5.7% | 17 | 17 | 34 | 34 | 68 | 68 | 136 | 136 |
| Softube Bass Amp Room | 15.9% | 28.9% | 6 | 3 | 12 | 6 | 24 | 12 | 48 | 24 |
| Softube Metal Amp Room | 23.7% | 24.2% | 4 | 4 | 8 | 8 | 16 | 16 | 32 | 32 |
| Softube Vintage Amp Room | 16.1% | 30.5% | 6 | 3 | 12 | 6 | 24 | 12 | 48 | 24 |
| Sonnox Oxford Inflator | 2.9% | 3.3% | 34 | 30 | 68 | 60 | 136 | 120 | 272 | 240 |
| Sonnox Oxford EQ | 4.2% | 4.7% | 24 | 22 | 48 | 44 | 96 | 88 | 192 | 176 |
| SPL Transient Designer | 3.6% | 4.3% | 27 | 23 | 54 | 46 | 108 | 92 | 216 | 184 |
| SPL TwinTube Processor | 16.8% | 17.2% | 5 | 5 | 10 | 10 | 20 | 20 | 40 | 40 |
| SPL Vitalizer MK2-T | 6.6% | 7.0% | 14 | 14 | 28 | 28 | 56 | 56 | 112 | 112 |
| SSL E Channel Strip * | 7.4% | 11.9% | 17 | 11 | 34 | 22 | 68 | 44 | 136 | 88 |
| SSL G Bus Compressor | 2.8% | 3.4% | 35 | 29 | 70 | 58 | 140 | 116 | 280 | 232 |
| Studer A800 Multichannel Tape Recorder | 9.8% | 15.4% | 10 | 6 | 20 | 12 | 40 | 24 | 80 | 48 |
| Teletronix LA-2 (Classic Leveler Collection) | 16.2% | 21.1% | 6 | 4 | 12 | 8 | 24 | 16 | 48 | 32 |
| Teletronix LA-2A Gray (Classic Leveler Collection) | 16.2% | 21.1% | 6 | 4 | 12 | 8 | 24 | 16 | 48 | 32 |
| Teletronix LA-2A Silver (Classic Leveler Collection) | 16.2% | 21.1% | 6 | 4 | 12 | 8 | 24 | 16 | 48 | 32 |
| Trident A-Range EQ | 5.5% | 9.1% | 18 | 11 | 36 | 22 | 72 | 44 | 144 | 88 |
| UA 1176 Rev A (Classic Limiter Collection) | 12.8% | 16.3% | 8 | 6 | 16 | 12 | 32 | 24 | 64 | 48 |
| UA 1176 Rev E (Classic Limiter Collection) | 13.1% | 16.7% | 8 | 6 | 16 | 12 | 32 | 24 | 64 | 48 |
| UA 1176AE (Classic Limiter Collection) | 12.8% | 16.3% | 7 | 6 | 14 | 12 | 28 | 24 | 56 | 48 |
Notes
- All measurements are taken at a sample rate of 44.1 kHz.
- DSP % indicates the amount of resources required by one UAD plug-in instance on a single SHARC processor. This measurement is from the System panel in the UAD Meter & Control Panel application (not the blue UAD Meter gauge, which shows averaged DSP loads of all available SHARC processors).
- DSP savings and higher instance counts can be achieved with plug-ins marked with an asterisk ( * ) by disabling UAD-2 LoadLock (in the UAD Meter & Control Panel application) and turning off sections of the processor. See the UAD Plug-Ins Manual for details.
- Apollo uses UAD DSP and memory for its internal DSP mixer, therefore the UAD Meters will show some DSP and memory usage when Apollo is connected even if UAD plug-ins are not loaded, and instance counts in the chart are higher than available on Apollo-only systems.
- The UAD system can process a maximum of 512 simultaneous UAD plug-in instances. High UAD plug-in counts (in the hundreds) may be constrained by overall system performance which is affected by host CPU loads, hardware I/O buffer settings, available bandwidth, the particular DAW in use, and related performance factors.
- As of v6.2.0, UAD-2 FireWire devices (Satellite and Apollo*) have a maximum limit of 58 stereo or 116 mono plug-in instances, and counts for these devices are subject to these limits. These theoretical limits are based on a 44.1 kHz sample rate with a FireWire 800 connection and the UAD Bandwidth Allocation set to 85% in the UAD Meter & Control Panel. For FireWire bandwidth tuning information, see "Optimizing Performance" on the Apollo support page. *Note: This limitation does not apply to Apollo when it is connected via the Thunderbolt Option Card.
- UAD plug-in PGM usage is not listed in the chart because unlike DSP usage, the “per plug-in” PGM value doesn’t simply sum when multiple UAD plug-ins are used, and the interdependencies of this resource are not linear.
- For the legacy UAD-1 instance chart, click here.

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