Blackout Effectors Sibling Analog OTA Phaser
The Blackout Effectors Sibling Phaser is the little sister to the Whetstone Phaser, using the same Operational Transconductance Amplifier (OTA) to create a modulated signal that depends on the notes you play for its output. The Sibling is a stripped down version with 3 simple controls that make it easier to use. A 2-way toggle gives you a range of long and slow or short and quick phaser cycles, which you can then fine tune to your needs with the Rate control for near glacial to the severely wobbly effects associated with a ring modulator. The Depth control works as a dry/wet mixer for the full range of effect from subtle to forceful, while the Level control adjusts your output voltage to your creative demands. The Sibling is wired for true bypass and operates only on 9vDC or 18vDC for greater headroom and definition.
Blackout Effectors Sibling Analog OTA Phaser Features:
- Analog OTA (Operational Transconductance Amplifier) Operation
- Rate, Depth and Level Controls
- 2-Way Slow/Fast Mode Toggle
- True Bypass
- 2.5” (6.35 cm) x 4.75” (12 cm) x 1.75” (4.44 cm)
- 9-18vDC Operation

Shipping
Free International Shipping on Effect Pedal Orders over $400. Use coupon code: INTLSHIP.
*Not valid with other discount codes.
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Most orders shipping within the US will ship USPS Priority Mail with delivery confirmation. Standard delivery time is 2-3 days. An automated email with a a delivery confirmation number will be sent. This number may be entered at USPS.com, however, the Priority Mail service does not offer step by step tracking. It will only update once the item has been delivered.
Most orders shipping outside the US will ship USPS Express International. The estimated deilvery time for international orders is 3-5 days. All international orders will ship with a tracking number. An automated email with tracking details will be sent.
Larger items such as amplifiers and guitars may be shipped via UPS Ground service in the US and UPS World-Wide Expedited service for international orders. An automated email with tracking information will be sent to the recipient.
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Returns
Download PGS Return Form (104k PDF)
If you are not 100% satisfied with your purchase you may return it for a full refund of the original purchase price. We offer a 60-day return policy on all pedals. We ask that you please return the product in the original product packaging along with all included materials (manual, warranty card, all accessories) and in the original condition that it was received. Pedals returned in undesirable condition (scratched, nicked, or modified) may be subject to a restocking fee of up to 25% of the purchase price. We must receive the product within 60 days of you receiving it. All guitar and amplifier purchases must be returned within 15 days of receiving the unit with all original packaging and materials.
Please pack carefully. Do not attach a label to manufacturer’s box. Use a shipping box for packing your return. You may choose any shipping service you like to return the package to us. We strongly recommend some sort of tracking or delivery confirmation and insurance. Lost packages happen; this will help protect you from loss.
Returns are processed twice a week, usually within 72 hours of receiving them. Refunds will be issued to the credit card or Paypal account used for purchase. Please keep in mind that credit card refunds can take up to 10 business days to post on the account once the refund has been processed.
Free International Shipping on Effect Pedal Orders over $400. Use coupon code: INTLSHIP.
*Not valid with other discount codes.
PGS One-year Replacement Warranty on All Pedals
Any manufacturer's defect in your pedal within one year of purchase will result in the replacement of that pedal free of charge
60-day Return Policy on All Pedal Purchases.
Return your new pedal for any reason within 60 days towards another pedal or a full refund
15-day Return Policy on All Guitar & Amp Purchases.
Return your new Guitar or Amp for any reason within 15 days towards another purchase or a full refund
Lifetime Product Support to Original Owner for the Life of the Product
Comprehensive Quality Check and Setup on Every Guitar.
If you are not 100% satisfied with your purchase you may return it for a full refund of the original purchase price. Please return the product in the original product packaging along with all included materials (manual, warranty card, all accessories) and in the original condition that it was received.
Items returned in undesirable condition (scratched, nicked, or modified) may be subject to a restocking fee of up to 25% of the purchase price. We must receive the product within 60 days of you receiving it for pedals and 15 days of receipt for guitars and amps. All guitar and amplifier purchases must be returned with all original packaging and in original condition. Please do not remove the protective plastic coverings on guitars and amplifiers (where applicable) until you know you are keeping the unit. Also, please be aware of the light finish scratches that may occur when playing a guitar from picks, fingernails, shirt buttons, and belt buckles. These are not acceptable on a return so please be careful.
Please pack carefully. Do not attach a label to manufacturer’s box. Use a shipping box for packing your return. You may choose any shipping service you like to return the package to us.
We strongly recommend some sort of tracking or delivery confirmation and insurance. Lost packages happen; this will help protect you from loss. Returns are processed twice a week, usually within 72 hours of receiving them.
Refunds will be issued to the credit card or Paypal account used for purchase. Please keep in mind that credit card refunds can take up to 10 business days to post on the account once the refund has been processed.

