Grove Hill Liverpoolは、1960年代のアメリカとイギリスの最高級コンプレッションを現代に復刻させました。あなた間違いなくこのコンプレッサーを気に入ります。豊かで、レンジが広く、深みがあり、図太い。アコースティックギターに通して演奏すれば、鮮明に聞こえ、ボディサウンドに魂が宿ります。
ミッドレンジは素晴らしく、ギターのリード、シンセ、ボーカルにスムーズさを加えます。ベースに使用すると、とても暖かいサウンドが得られます。強く掛けると、音に影響を与えずにエッジを追加します。
Frequency Response
10Hz to 40kHz (+/- 1.5dB)
Frequency Response (vintage)
300 Hz to 15,000Hz (+/- 1.5dB)
Power Output
+20 dBm
Total Harmonic Distortion
0.08% at 1 KHz with output at 0dB
Noise Level
82 dBu below rated output
Noise Level
82 dBu below rated output
Source Impedance
Any up to 15,000 Ohms
Load Impedance
600 Ohms
Attenuation
30 dB in 5 dB steps – constant impedance
Maximum Compression
30dB
Threshold
0dBm to +16dBm Output
Compression Ratios
⦁ 2:1 at 0dBm Threshold
⦁ 4:1 at +16dBm Threshold
Unlike many other compressors, this control here plays two roles. It is used both for adjusting input level and to specify the desired average compression as indicated by the gain reduction meter.
Again, there are two functions to this knob. Its primary purpose is determining the output level at which compression commences. Secondary, it adjusts the ratio.
The Attack Knob controls how much of the signal transient is allowed through before compression starts. There are 6 different speeds, labeled 1 (Fast) to 6 (Slow), with every second selection labeled ‘C’ — for turning off the compression. In these positions, the effect can be used as a line amplifier.
1
2
3
4
5
6
3 milliseconds
19 milliseconds
48 milliseconds
77 milliseconds
109 milliseconds
138 milliseconds
Used for measuring the gain reduction which occurs as the result of compression.
The recovery control determines how quickly the signal rebounds after the input signal has fallen below the threshold. There are six Recovery positions labeled 1 (Fast) to 6 (Slow), with every second selection (labeled H) turning on the Hold function.
The Hold function is a unique feature of the Liverpool. It was added as a modification of the original compressor based on feedback from recording engineers. The Hold function is explained in more detail later in this manual.
1
2
3
4
5
6
The output attenuator of the Liverpool is controlled from a six-position rotary switch. This method of attenuation allows for constant impedance on the output transformer as well as the load. The available choices are: 0dB, 5 dB, 10dB, 15dB, 20dB, and 30dB.
In the hardware original, the power switch is used to turn the compressor On or Off. Here, it is used for bypassing the effect.
When trying to process the initial attack of an audio track, the slow attack of the compressor will cause an audible thump to be produced. In such cases, the Hold function is used to “prime” the compressor with the required amount of gain reduction first, thus preventing the thump from occurring.
This is done by playing a track into the compressor, setting the controls as required, then moving the Recovery control to one of the Hold positions. This prevents the compressor release from taking place, maintaining the amount of gain reduction.
The track can then be stopped and played from the beginning. Once the initial attack of the first note has been processed, the compressor can be switched out of Hold and put back to the desired Recovery setting.
If the unit is compressing a track with room ambience, the ambient noise from the recording would swell up in volume at the end of the performance as the gain reduction returned from the compressed level to zero.
This can be avoided by switching the Recovery control to an adjacent Hold position after the last note has finished, which would stop the compressor release from taking place.
Having difficulties with the Grove Hill Liverpool or anything else Antelope? Get in touch with us by the following means:
European Direct Support Line
+44 2039578550
10:00 a.m. – 10:00 p.m. (EET), Monday – Friday
USA Direct Support Line
+1 734 418 8661
7:00 a.m. – 6:30 p.m. (EST), Monday – Friday
Online (live chat and e-mail)
Antelope Audio Support Page
Attack: Adjusts how quickly the compressor starts to work after the signal exceeds the compression threshold.
Release: Controls how soon the compressor will stop after the signal goes below the compression threshold.
Ratio: Controls how much compression is applied. For example, a 3:1 ratio means that every time the input signal crosses the threshold by 3dB, output signal will be attenuated 1dB.
Threshold: The Threshold is the level above which the compressor considers the signal too loud and starts applying compression.
Knee: Knee and Attack have a lot in common, but they are not the same. Like Attack, Knee controls how the compressor will react once input signal passes the threshold. Hard Attack makes the compressor engage immediately while Soft Knee shapes its attack time to make it slower and smoother.
