The Keeley Bassist Compressor provides true high-fidelity compression and limiting. No detail in your bass guitar’s tone will be lost. Be heard and felt using performance compression by Keeley Engineering.
The Bassist Compressor is built around the exotic and extremely high fidelity THAT Corp. 4320. Think of it as very affordable studio-grade compressor in stomp box format! It uses high performance Voltage Controlled Amplifiers, on board true-RMS detector, and ultra high performance op-amps to bring you the very best quality. VCA compressors give you precise control. Therefore they are directly suited to bass guitars. The Keeley Bassist Compressor is both musical and very transparent. Where our older compressors were based on the CA3080 or the LM13700 and are perfect for single coil guitars, the new Keeley Bassist Compressor has no problems with active pre-amps and most of the hottest instrument line level signals! Not only can the Keeley Bassist handle astonishingly large signals, it has an incredible bandwidth of over 20 KHz and incredibly low noise. The Keeley Bassist will be a sound investment in your tone, you now have rack-mount quality at your feet.
Compression and Threshold
When bass players use the Keeley Bassist Compressor they will be greeted with a sound that is more easily amplified and heard. Using the effect as a limiting amplifier saves your speakers from clipping and distortion. Set the Threshold to look for peaks in your signal and limit distortion from your amplifier or damage to your speakers. Simply watch the Threshold Indicator light to see what type of playing you want to limit, it’s that easy! Next set the Compression Ratio Control to determine how much squash you want when the signal is above Threshold. Set Compression all of the way down for no (1:1) compression and use the Gain control as a boost! Set Compression all of the way up for an above-Threshold hard-knee limiter.
A typical soft compressor setting would be 2:1 above threshold. A good starting ratio for the Compression control may be 4:1 as it generally sounds good with bass guitar. A ratio of 5:1 or 6:1 will sound great for slap or funk-style playing. For synth-bass try 10:1 Compression.
Attack and Release
There is a certain figure that just sounds good as far as compression goes; and that’s 125 dB/second. With feed forward compressors that use this type of true-RMS detector you use a single time constant parameter. The timing capacitor gives you attack and release times that are adaptive to your playing level or the signal input to the compressor. Bottom line: Attack and Release times vary on program content. Attack times are generally speaking, about 100 times faster than release times.
- Attack Time: typically 15ms for 10dB, 5ms for 20dB, 3ms for 30dB
- Release Time: typically 8ms for 1dB, 40ms for 5dB, 80ms for 10dB, 160ms for 20dB, 240ms for 30dB
Bassist Compressor Features:
- Voltage Input: 9V
- Current Draw: 50mA
- Input Impedance 1 Meg ohm
- Output Impedance: 100 ohm
- Output Voltage Gain: +30dB Boost
- Bandwidth > 20kHz
- Total Harmonic Distortion: 0.1%
- Noise: -95dBV
- Threshold Indicator: Dual LED
1 – All claims require a purchase receipt. It is the customer's responsibility to present it when making a claim.
2 – Except as stated below, in-store sales are final and items purchased may not be returned. By completing their transaction, the customer acknowledges that they have taken the item(s) in optimal condition.
3 – Guitars, basses, pedals, amplifiers, accessories, and tubes are not returnable. By paying for the item, the customer acknowledges that: (i) they inspected it and found it to be in optimal aesthetic condition without defects; and (ii) they tested it and it was functioning properly.
4 – All claims due to defects are subject to the manufacturer’s terms and conditions.
5 – Guitars, basses, pedals, and amplifiers will have a 30-day warranty. The electronics of guitars and basses will have a 90-day warranty. Guitars Boutique, at its sole discretion, will decide whether to repair, replace parts or components (with identical ones), and/or replace the item with an identical one.
6 – At the store's discretion, defective items may be exchanged for an identical item SUBJECT to the defective item being in the same condition as when it was acquired, including its original packaging with all its accessories. This will be done as store credit only. The credit does not apply to special orders or lay-away.
7 – All merchandise leaving the store will be considered as used in the future.
8 – No refunds will be given, regardless of the person.
9 – Special, clearance, or discounted items are not returnable.
Puerto Rico only.
In case of a return, the shipping cost will be deducted from the refund.
Guitars Boutique ships to PR via federal mail USPS, UVA, and iWide.
Estimated delivery time once the order has been shipped:
- Lightweight items, less than 14 pounds are shipped via USPS.
- Heavier items are shipped via iWide and UVA.
- No shipments are made on Sundays.
Guitars Boutique is not responsible for delays caused by shipping companies.
